Demo

Session 2026-10-15 (4c06f629)

Condensed export of Claude Code session 4c06f629-ada8-4897-a191-f995cde52437, 2026-10-15 04:26 to 2026-10-15 07:14 UTC. It contains only the conversation: the user's messages and Claude's replies. Thinking, tool calls and tool output are left out.

User · 04:26

continue

Claude · 04:26

Failed to refresh OAuth token: another Claude Code process is refreshing it or exited mid-refresh. This is usually transient; retry in a minute, and if it persists close other Claude Code processes or sign in again

User · 04:27

continue

Claude · 04:27

Next is step 7: demo data for conversations and offers. Let me look at the existing seeds and the design doc.

Now the public functions of Conversations, Offers and Desk.

Continuing with step 7 (demo conversations and offers); I'm checking which demo products to use.

Writing Mercator.Seeds.Consulting now. First I'm making Orders.backdate/3 reusable for the order placed from an offer.

The seed module compiles. Next I'm writing a test for it and adjusting the order counts in the orders seed test.

Replacing the attribute_equals(:rated_at, nil) validation with absent(:rated_at), then running the seed and conversation tests.

Tidewave is connected now. I'm removing the unused require and running mix precommit.

Thanks, Tidewave works now. The precommit run is green (519 tests). Committing, then I'll seed the dev database through Tidewave and check the result.

Phase 6 is now complete apart from the postponed video. I'm moving it to the roadmap history and updating the design doc.

Updating my resume note.

Step 7 is done, so guided selling (phase 6) is finished except the video calls you postponed (#100). mix precommit passes with 519 tests, and the work is committed as 85db119 plus a roadmap update in 24dd9f6.

Demo data: the new seed file consulting.ex adds five conversations and their offers, all backdated:

  • Karl, garden house (3 weeks ago): Sepp recommends products and makes an offer. He then sends a second version with foundation and assembly, which Karl accepts and orders. Karl gave it 5 stars.
  • Karl, terrace (2 months ago): a recommendation, a link to the FAQ page and an offer that has since expired.
  • Karl, firewood: an offer from Maria without a conversation, still valid, so you can try ordering an offer as Karl.
  • Lena, delivery to Germany (a month ago, English): answered by Maria, 4 stars with a comment.
  • Lena, pellets (open now): Sepp is advising her, and the offer with 12 % discount is waiting for a sales manager's approval.
  • A visitor is waiting for an answer and has asked to be called back by phone.

No emails are sent while seeding. Running the seeds again creates nothing twice.

Other changes:

  • The seeded offer order raises Karl's order count from 4 to 5, so I adjusted the orders seed test.
  • In Conversation :rate, I swapped one check for an equivalent one that doesn't print an Ash warning.

Dev database: I ran mix run priv/repo/seeds.exs, so the demo data is in place now. Your manual test offers (00001–00004) are still there, and the demo offers start at 00005.

Next phase: we can do phase 7 (online payment, provider still to be chosen, #14) or phase 8 (Docker image and demo mode). Which would you like next?

User · 04:42

no, before we fix the domain, we will be running on biber.mittenin.at, so change accordingly, also the users from ...@example.com to ...@mittenin.at.

Claude · 04:42

I'm switching the host default to biber.mittenin.at and the demo emails to @mittenin.at. Checking the sender config first.

Now running precommit.

The dev database still has the old addresses, so the next seed run would create seven new users next to them. I'm renaming them in place, and fixing the contact address in the seeded pages.

The shop now runs as biber.mittenin.at, and the demo users have @mittenin.at addresses. mix precommit passes with 519 tests, and the change is committed as 8210d3f.

In the code:

  • PHX_HOST now defaults to biber.mittenin.at in runtime.exs, so the README no longer lists it as required.
  • The seven demo users are now admin@, sales@, manager@, content@, products@, kunde@ and customer@mittenin.at. The seeds, the seed tests and the README table are updated.
  • The shop's contact address in the brand config (dev.exs) and on the seeded imprint page is now service@mittenin.at, instead of the placeholder service@biberholz.example.
  • I recorded the change to decision #42 in roadmap-history.md.
  • Other test data keeps example.com on purpose, such as freshly registered test users and the sample link in the desk test. Say if you want that changed too.

In your dev database: I renamed the seven demo users in place, so their orders, conversations and offers stay attached. A new seed run won't create duplicates. I also replaced the old address on the imprint page and in its version history.

Please restart mix phx.server, because the brand email in config/dev.exs is only read at startup. Anyone signed in keeps their session; new logins need the new addresses.

User · 04:45

I learened testing that user's name should be mandatory: as a company employee it's inpolite to only show an email to customers, as a customer we need it latest for the documents.

Claude · 04:47

Going with option 1. Let me look at the router, the auth controller and the existing auth tests.

I'm making the name required in the registration and profile actions, then adding the form field, the name page and the sign-in check.

Domain tests pass. Now the name field on the registration form.

The overrides merge per key, so that works. Next is the "Wie dürfen wir Sie ansprechen?" page and the check that sends users without a name there. Let me check the account page's idioms.

My first local_path clause was muddled; simplifying it.

Compiles. Now tests: let me find the existing LiveView tests for registration and sign-in.

The chat panel is rendered inside every page and inherits the session's hooks, so the name check has to skip it.

Tests pass. Now the German translations.

It didn't recur in six full runs. I'll mention it below and not chase it now. Running precommit again, then committing.

The decisions are listed by number, so I'll move #102 to the end of that list.

Committed. Updating my question counter.

The name is now mandatory, done the way you picked (#102: required on the registration form, plus a name page for magic-link sign-ups). mix precommit passes with 527 tests, and it's committed as 4f20d63.

How it works:

  • Registration form: it now asks for the name first, above the email. It uses the auth library's own hook for an extra field, so their pages are unchanged otherwise. Registering without a name is rejected.
  • Magic-link sign-ups: an unknown email still creates the account on first sign-in, but without a name. Right after signing in, those users land on a "Wie dürfen wir Sie ansprechen?" page. After saving, they continue where they were going, for example to the checkout.
  • Every shop and admin page sends a signed-in user without a name to that page until they have entered one. The chat panel is exempt, since the page around it already redirects.
  • "Mein Konto" won't save an empty name any more.
  • Database column: it stays nullable, because a magic-link account has no name in the moment between creation and that page.

The new texts are translated into German. I recorded the decision as #102 in roadmap-history.md. None of the users in your dev database are missing a name.

One flaky test: during the first precommit run one test failed once, in offer numbering. It didn't recur in six more full runs. My guess is that test modules running in parallel occasionally block each other on the shared offer counter. I haven't confirmed that. Shall I look into it, or leave it unless it comes back?

When you have a moment, please look at /register and /account/name in the browser. I haven't checked them visually; they follow the existing styling.

User · 05:08

Checked /register, checked /account , both are fine. Leave it untill it comes back.

Claude · 05:08

Good, thanks for checking. I'll leave the flaky test alone and only look into it if it fails again.

That finishes guided selling (phase 6) and the name change. What's next: phase 7 (online payment, provider still to be chosen, #14) or phase 8 (Docker image and demo mode on biber.mittenin.at)?

User · 05:10

I would love to continue with the backlog, I believe it's not too much: Variants combined with a configurator: we skip that completely.

Claude · 05:10

I've dropped that item from the backlog and recorded it in the history (9b5121a). Next I'll take the smallest item, the active entry in the shop sidebar. Let me look at how the sidebar is rendered.

Now the implementation: the path goes into @nav, and category and product pages add their category trail.

Assigning variables inside a pipe is awkward; I'll read the values from the assigns instead.

Now marking the active entries in the sidebar.

Compiles. Now the tests; let me find the existing sidebar tests.

Adding tests: the main category is highlighted on its subcategory and product pages, and the menu page (or its closest parent in the menu) is highlighted on content pages.

Tests pass. Running precommit, then moving the item from the backlog to the history.

Done (b326861). Next backlog item: letting content managers set the start page. Let me look at how the page key is protected today.

Good to hear the highlighting works. Continuing with the start page action: a :make_start_page update that moves the home key from the previous start page in the same transaction.

Now the button in the page editor. Let me find where its actions are.

I'm writing the tests in their own non-async module, because the unique home key would collide with the async home page tests.

Still on the product editor: reading how kind and variants interact.

Going with "keep data, hide it". Let me check the pricing models and how the configurator uses variants.

The domain action is in place. Now the UI: a "change kind" dialog in the editor, tab labels by kind, and the variants tab adapted to the kind.

Now the variants tab adapts to the kind.

The test needs the German labels, which aren't translated yet. I'm also replacing a sloppy rescue in one test with a proper assertion.

All 9 pass. Running precommit.

Committed (bc6bd75). The last backlog item is the Typst PDFs. Let me check whether typst is available.

Installing Typst with asdf and pinning it in .tool-versions.

Typst 0.15.1 is installed and pinned. Next I'm reading how the printable offer page is built, so the PDF shows the same content.

Writing the shared Typst template. Now I'm compiling it with sample data to check the layout.

Mostly good. The sums need spacing between label and amount. Fixing that and rendering it at higher resolution.

The layout is right. Now the Elixir side: Mercator.Pdf runs Typst in a temporary directory.

Now the PDF download routes next to the print routes, sharing the access checks.

Now tests in the existing offer print controller test.

The tests pass and Typst really ran. Now a visual check with a demo offer from the dev database, the revised garden house offer with its free-text item.

The offer PDF looks right. Adding the German texts, then precommit and commit.

Anna Specht signs in with admin@mittenin.at and the password mercator-demo, which all demo users share. Continuing with the translations.

Committed (a4d2c32). Next is the order confirmation PDF. Let me look at the order data and the confirmation email.

Writing the order confirmation data next. Checking how order pages load an order.

Adding optional text sections to the template (payment and delivery), then the order data.

A newline inside a Typst string probably renders as a space, so the template will accept the intro as a list of lines.

Now the order PDF controller, routes and links.

Both noted. The sums line overlaps because the grid cells have no padding below the rule. I'm giving the total row some top padding, then renaming the link.

"Download" already exists as a msgid with the translation "Download". I'll use it, and switch the response to a real download (attachment) to match the label.

Downloads don't need a new tab, so I'm removing target="_blank" from the PDF links.

Now the German texts for the order confirmation.

I'll make it "Download PDF".

I'll attach the PDFs in the two workers, so the email builders stay unchanged. If a PDF fails, the email still goes out without it and the error is logged.

Both emails carry their PDF now. Adding a controller test for the order PDF download.

The order fixture needs the GTC. Checking whether other async tests also insert it, since its version is unique.

Several async tests already share that pattern, so I'll follow it.

The test was wrong: shipping adds €9.90. Fixing the expected total.

Running precommit. I'm also touching the Gettext backend so your dev server recompiles the translations. A stale translation from my first round is the likely reason you saw "Anlegen".

The backlog is empty now: all four items are done and the configurator one is dropped. Precommit passes with 548 tests, and everything is committed (last code commit bb8e342, plus a roadmap note).

Typst PDFs:

  • Setup: Typst 0.15.1 is installed with asdf and pinned in .tool-versions. One shared template (document.typ) serves both documents; texts are formatted and translated in Elixir (#104).
  • Offer PDF: "Download PDF" sits next to "Drucken" on your offer pages and in the back office. The link name and the "Gesamt" overlap are fixed as you asked; the links now download the file instead of opening it.
  • Order confirmation PDF: there's an "Auftragsbestätigung (PDF)" link on the order page, in the account and in the back office. It shows the billing address, items with gross unit price and VAT rate, the sums, payment instructions, delivery and the GTC version.
  • Emails: the offer email and the order confirmation email each carry their PDF. If rendering fails, the email still goes out without it and the error is logged.
  • "Anlegen": it was most likely an outdated translation in your running dev build. I've made the server recompile the translations, so it should be gone after a reload.

Earlier in this round:

  • Shop sidebar: it highlights the current entry; you've already tested it.
  • Start page: content managers have "Als Startseite verwenden" in the page editor. The key home moves over from the previous start page.
  • Product kind (#103): it's changed in its own dialog and saved at once, so the tabs follow right away. Simple products get "Preis & Lager", configurable ones "Artikel & Lieferzeit" without prices. Nothing is deleted, and switching a product with several variants to simple is refused.

Things to know:

  • Docker (phase 8): the image must contain typst and a sans font (Noto Sans or DejaVu Sans). I noted that in the roadmap.
  • Dev order emails: your dev orders still show the old @example.com addresses, because orders keep the email they were placed with. I can update them if it bothers you.
  • Flaky test: many async tests insert the same GTC version, which may be behind the one failure we saw. I'm leaving it as agreed.

Next is phase 7 (payment provider, #14) or phase 8 (Docker and demo mode). Which one?

User · 05:34

You wrote: "The error is logged" a few seconds ago, that brought up a fantastic idea: Incidents - for the backoffice, they should look into. A simple model: Title, timestamp, customer, text field 'description', text field 'resolution', status: open, resolved. What do you think?

Claude · 05:34

I think it's a good idea. Logs are where problems go to be forgotten: nobody in the back office reads them, and on a single-tenant deployment there may be no one watching them at all. Incidents turn "something went wrong" into a to-do someone owns and closes.

Your model works as the core. I'd add a few things:

  • Source and link: a kind (pdf, email, payment, …) and an optional link to the affected order, offer or conversation. Then staff can jump straight there, and "customer" is often implied by the link.
  • Who resolved it and when: resolved_at and resolved_by, so the history shows who closed what.
  • Technical details apart from the description: the description is readable for staff ("The order confirmation PDF could not be created"). The raw error goes in a collapsible field for whoever fixes the cause.
  • No floods: if the same kind for the same order is already open, count it up ("occurred 3 times, last at …") instead of creating new rows.
  • Visible without looking for it: a badge with the number of open incidents in the admin sidebar.

Where incidents would come from:

  1. Incidents.report/… at the spots where we now only log: the PDF attachment, and later the payment callbacks.
  2. Oban jobs that fail for good. That's the big win: a confirmation email that couldn't be delivered after 5 attempts currently vanishes silently. A telemetry hook on the last failed attempt turns every such job into an incident automatically.
  3. Optionally by hand: staff record a customer complaint as an incident. Then it's a light ticket system, which is useful but a step bigger.

Three questions before I start:

  • #105 Domain: CLAUDE.md says to agree on new domains. I'd make a small Mercator.Operations domain, since incidents fit neither Sales nor Accounts. Is that name okay, or do you prefer something like Support?
  • #106 Roles: who sees and resolves incidents? My suggestion: administrators see everything; sales and sales managers see those linked to orders, offers or conversations.
  • #107 Manual incidents: only system-reported ones (simpler, my suggestion for a start), or can staff create them by hand too?

It's small enough to build now, before phase 7, and the payment integration would profit from it right away. Shall I add it to the roadmap and start once you've answered?

User · 05:36

#105 yes #106 yes #107 staff can create them as well manually do it right away, also the additions you suggested above are very welcome

Claude · 05:37

Building it now. First the admin sidebar, then the Logger calls that should become incidents.

Writing the Mercator.Operations domain with the Incident resource.

ActorHasRole takes a single role, so I'm splitting the policy into two that must both pass. Also moving the domain to the end of the list.

Next is the Incidents module: system reports with deduplication, counts, and PubSub for a live badge.

The migration looks right; the "destructive" warning only refers to its down. Migrating the dev database.

Now the hook for background jobs that fail for good. Checking Oban's telemetry metadata.

A final failure arrives as state: :discard. Writing the handler.

Compiles. System-reported texts should be in the shop's default language, German, rather than English. I'm adding a small helper for that, then wiring up the PDF errors.

Hooking up the PDF failures compiled cleanly. Now the UI. The badge count has to reach Layouts.admin; let me count the call sites.

All 18 are one-liners, so a scripted edit is safe. First the hook module.

Now the sidebar entry and its badge.

Now the pages: a list with filters at /admin/incidents, a form for new incidents, and a detail page. Let me look at the offer list for the conventions used.

I'm adding the staff-side functions to Incidents (create, update, resolve, reopen, all broadcasting), then the LiveViews.

I have to stop: auto mode blocked my last file edit, and its safety check says it will keep blocking for the rest of this conversation. So I can't continue here without you.

The incidents feature is half built and not committed:

  • Written and compiling:
    • the Mercator.Operations domain with the Incident resource, its migration (already run on your dev database), and the Incidents module for reporting, deduplication, staff actions and counting;
    • the Oban hook that turns jobs that failed for good into incidents;
    • PDF failures reported as incidents, in emails and downloads;
    • the sidebar entry with a live badge (MercatorWeb.IncidentBadge, wired into all admin pages);
    • a first version of the list page with the "new incident" form.
  • The blocked edit:
    • the badge hook has to let change messages through to the incident pages; without that, their lists don't update live;
    • the record lookup on the list page needs to be simplified.
  • Still missing:
    • the routes (/admin/incidents, /new, /:id), the detail page and the small IncidentComponents module (state and kind badges, labels);
    • "Report incident" buttons on the order, offer and conversation pages;
    • tests, German translations, roadmap entries, precommit and the commit.

Your simulation is still planned. I'll briefly point the running server at a non-existent typst program and download a PDF. That fails through the real code path and creates an incident you can open in the back office, and then I'll switch it back.

To continue, please switch Claude Code back to the default permission mode, or start a fresh session; the current-status memory tells me where to resume.

User · 05:42

i switched to manual, can you continue that way triggering me?

Claude · 05:42

Thanks, continuing. I'll retry the blocked edit first.

The formatter had changed that function's layout, so the replacement missed. Fixing it with Edit.

Now the shared components (state and kind badges).

Next the detail page: facts, links, description, technical details, editing, and resolve or reopen.

Adding the routes.

Compiles. Now the "Report incident" links on the order, offer and conversation pages.

Auto mode seems to be on again (the session just reported it), and its safety check now blocks even my read-only shell commands. The Read tool still works, so I'll prepare the next edits with it.

Unfortunately, auto mode still doesn't work in this conversation. Right after you switched back, it blocked even a read-only grep, with the same message: the check reacts to earlier content in this conversation and will keep firing until it ends. Two ways forward:

  1. Manual mode for the rest of this session. I continue right away; you approve the edits and commands as they come. That worked fine a moment ago.
  2. A fresh session in auto mode. The block doesn't carry over. I'd resume from my status memory and the state of the repository (the incidents work isn't committed yet, but it's all on disk).

Where incidents stand (uncommitted, compiles):

  • Done:
    • domain, resource, migration (already run on your dev database), and the Incidents module for reporting, deduplication and staff actions;
    • the Oban hook for jobs that fail for good, and PDF failures reported as incidents;
    • the sidebar badge, live on all admin pages;
    • the list page with filters and the "new incident" form;
    • the detail page with editing, resolve and reopen;
    • the routes.
  • Still missing:
    • "Report incident" links on the order, offer and conversation pages;
    • tests, German translations, roadmap entries, precommit and the commit;
    • your PDF error simulation.

Which do you prefer?

User · 05:45

i went back to manual

Claude · 05:45

Continuing in manual mode. First the incident link on the order page.

Compiles without warnings. Now the tests: domain tests first. The test that breaks Typst on purpose changes global config, so it goes in a non-async module.

Possibly. My mix compile --force takes the build lock, and the server waits for it ("Waiting for lock on the build directory"). Checking whether one of my processes is still running.

Good. It was my compile holding the build lock; it had just finished. I'll avoid --force while your server runs. Running the new tests.

I forgot the fourth argument. I'll also link a real conversation in the test, since "customer_id" isn't one of the link keys.

All 10 pass. The deliberately invalid report logs an error, so I'll capture that log in its test.

Now the non-async test that breaks Typst on purpose: an email without PDF and a failed download must each create an incident.

assert_email_sent matches the first email, the account confirmation. I'll drain the mailbox before running the job, and drop the unused import.

That's expected: the German translations don't exist yet. Adding them now.

Those pass. Let me look at your test incident in the dev database.

Your test incident went through the whole flow: recorded by hand with a customer, then resolved. Now LiveView tests for the pages.

All 7 pass on the first run. Running precommit.

Four Credo findings. Fixing them one by one.

Green, 567 tests. Recording the decisions in the roadmap, then committing.

Incidents are built and committed (a5b38ff), and mix precommit passes with 567 tests. Your PDF simulation also worked on the dev server.

The simulation: I pointed the running server at a non-existent typst program and ran the real "offer sent" email job for Karl's firewood offer (BH-A-2026-00007). The setting was restored right after, in the same call.

  • The email went out without a PDF; it's in the dev mailbox at /dev/mailbox.
  • The incident "PDF Angebot-BH-A-2026-00007.pdf konnte nicht erstellt werden" is open, linked to the offer and to Karl. The description asks staff to send the document by hand, and the technical details hold the Typst error.
  • What you'll see: the badge in the admin sidebar shows 1, and your own test incident is next to it in the list under "Erledigt".

What's there:

  • The domain is Mercator.Operations (#105). An incident has a title, description, technical details, resolution, open or resolved with who and when, and links to customer, order, offer or conversation.
  • Repeats: the same problem happening again while its incident is open counts up ("3-mal, zuletzt …") instead of creating new entries.
  • Automatic incidents:
    • a PDF that fails in an email or a download;
    • every background job that fails for good, after all its attempts (for example an undeliverable confirmation email).
  • Pages: /admin/incidents lists open ones first and filters by state and kind. The detail page lets you edit, resolve (only with a resolution text) and reopen. A count badge in the sidebar updates live.
  • Recording by hand (#107): "Vorfall melden" on the order and offer pages, and an icon in the sales desk, open the form already linked to that record. "Neuer Vorfall" in the list lets you choose a customer instead.
  • Roles (#106): administrators see all incidents; sales staff see the customer-related ones and those they reported.

I recorded #105–#107 in the roadmap history. Next is still phase 7 (payment provider) or phase 8 (Docker and demo mode). Which one?

User · 05:54

tested the error simulation -> perfect.

Claude · 05:54

Glad the error simulation checked out. Incidents are complete: committed in a5b38ff, with the decisions (#105–#107) in the roadmap history.

The backlog is empty, so the next step is one of the two remaining phases:

  • Phase 7, online payment: we'd first choose a payment provider (#14). Failed payment callbacks would then show up directly as incidents.
  • Phase 8, Docker and demo mode: a Mix release in a Docker image with typst and a font, running on biber.mittenin.at with public demo accounts and a nightly reset.

Which one shall I start?

User · 05:56

let's start with 7, but first only discussion: It was mpay24 in mercator/rails, but the reason for choosing was a customer requirement i would prefer either: something more established internaltionally - stripe? do they have a test instance/set up we could configure against? or: liberapay: because it would perfectly fit my indie / single developer mindset some question there: do they have a test instance/set up we could configure against? what's your opinion?

Claude · 05:57

My recommendation: build Stripe first, but behind a small provider interface, so a customer deployment can switch providers later. Liberapay doesn't fit shop payments at all.

Liberapay: I like the spirit too, but it's the wrong tool here. As far as I know, it's a platform for recurring donations to creators and projects, and its terms exclude payments in exchange for goods or services. There's no checkout API for a shop and no merchant sandbox to test against. Where it does fit is funding Mercator itself: a "support this project" link in the README or on GitHub.

Stripe: yes, it has a very good test setup:

  • Test mode: separate test API keys and a test dashboard; you only need a free account, no business verification.
  • Test cards: e.g. 4242 4242 4242 4242 succeeds; other numbers simulate declines, 3-D Secure prompts and so on.
  • Webhooks to localhost: the Stripe CLI forwards Stripe's notifications to your dev server, so the full flow works without a public URL.
  • Hosted checkout ("Stripe Checkout"): we redirect to Stripe's payment page and get the result back by webhook. Card data never touches Mercator, which keeps compliance minimal.
  • Austrian payment methods: EPS is available, along with cards, SEPA, Apple/Google Pay and Klarna.
  • Elixir: there's no official library, but the REST API is easy to call with Req, which we already use. That avoids a community dependency.

A third option I'd add: Mollie. It's a Dutch company and strong in the EU, with EPS too. It has the same kind of test setup (test API key, a test page where you choose "paid / failed / cancelled"), a very simple API, and no monthly fee. As an EU provider it feels a bit closer to your indie mindset than Stripe while still being established.

Why the interface matters: mPAY24 was chosen because one customer required it, and that will happen again with one deployment per customer. The interface would be a behaviour like Mercator.Payments.Provider with functions such as "start payment", "handle callback" and "refund". Each deployment chooses its provider in config, the checkout and order states stay provider-neutral, and failed callbacks become incidents.

Questions for the discussion:

  • #108 Provider: Stripe first (my recommendation, since it's the most widely known for a generic product), Mollie first, or both from the start?
  • #109 Payment page: Stripe's hosted page with a redirect (my recommendation: simplest and minimal compliance), or a payment form embedded in our checkout?
  • #110 Payment methods: is online payment one more option next to prepayment, invoice and payment on pickup, with the methods (cards, EPS, …) chosen in the provider's dashboard? That's my suggestion, rather than us listing each method.

I can check current details (fees, the Liberapay terms) on the web before you decide, if you like.

User · 06:00

#108 start with the one easier to implement #109 simplest option first, we could later show case the other option to simulate a third provider (after mollie) #110 yes! drop Liberapay. I guess the demo only needs set up accounts and have no fees for the other two?

Claude · 06:00

For the demo, test mode is free for both. You only need the accounts: no monthly fees, and test payments cost nothing because no real money moves. Fees would only apply to a customer deployment taking real payments.

#108: Mollie is the easier one to implement.

  • One flow: create a payment, redirect the customer to Mollie's payment page, and Mollie notifies us when the status changes.
  • Webhooks are simple: Mollie only sends the payment ID, and we fetch the status ourselves with our API key. There's no signature to verify, because a forged notification can't fake a status.
  • Stripe needs more: a checkout session, signed webhooks we have to verify, and somewhat more involved status objects.

One thing for local development: Mollie can't reach localhost with its notifications, and unlike Stripe it has no command-line tool to forward them. My plan is to also check the status when the customer comes back from the payment page. That's good practice anyway, since webhooks can arrive late, and it makes the whole flow work on your machine without a public URL. On biber.mittenin.at the webhook works normally.

What you'd need to do:

  • Create a Mollie account. As far as I know, the test API key (test_…) is available right after signing up, before any business verification.
  • Put the key into your environment (e.g. MOLLIE_API_KEY). It never goes into the repository.
  • Later, a Stripe account works the same way, with test keys available immediately.

#109: hosted payment page first. The embedded variant later can stand in for a third provider. #110: online payment is one more option at checkout, and the payment methods are chosen in the provider's dashboard. Liberapay is dropped.

Next I'd suggest a short design note, docs/payment-design.md, like the earlier phases, for you to agree on before I build. It would cover:

  • the provider interface;
  • new order states, or payment states on the order;
  • what happens on success, failure, cancellation and a late webhook;
  • refunds on cancellation;
  • incidents for anything unexpected;
  • the test setup.

Shall I record #108–#110 in the roadmap and write that note?

User · 06:02

yes. and for testing, because it can't reach back to localhost, we then do phase 8, to a docker deploy on my home server, that will then be reachable from a real domain.

Claude · 06:02

I'll record the decisions and write the design note. First a look at how payment methods and order states work today.

Freight orders have only estimated shipping costs at checkout, which affects online payment. That goes into the questions. Writing the note now.

I recorded #108–#110 in the roadmap and wrote the design note: docs/payment-design.md, committed as 8f59e1b. Your test plan is in it: webhooks get tested after phase 8, on your home server with a real domain.

What the note proposes:

  • Provider interface: a behaviour with "create payment", "fetch status" and "refund". Mollie is the first adapter and talks to Mollie's API with Req. The provider is chosen in config, and the API key comes from the environment.
  • New payment method "Online bezahlen":
    • each payment attempt is recorded as an OnlinePayment linked to the order, and an order can have several attempts;
    • the order states stay as they are, and the system marks the order as paid.
  • Flow:
    1. The order is placed and the customer is sent to Mollie's payment page.
    2. When they come back, we ask Mollie for the status rather than trusting the URL. That makes the whole flow work locally.
    3. The webhook does the same check on the server.
    4. If paid, the order is marked paid and the customer gets an email; if not, the order page offers "Pay now" again.
  • Back office: the payment attempts appear on the order, there's a refund when a paid order is cancelled, and a filter for unpaid orders. Anything unexpected becomes an incident: an unknown payment, a wrong amount, payment arriving for a cancelled order, or provider errors.
  • Tests: a fake provider in the tests, stubbed HTTP for the Mollie adapter, and manual tests in Mollie's test mode.
  • Steps:
    1. the basics;
    2. checkout and return page;
    3. the Mollie adapter;
    4. back office, refunds and incidents;
    5. phase 8 and the webhook test;
    6. later Stripe and the embedded form.

Three open questions:

  • #111 Unpaid online orders: the stock is reserved while the customer pays. Cancel automatically after a while (e.g. 2 days, configurable, with an email), or leave it to staff?
  • #112 Freight orders only have estimated shipping costs at checkout. Only offer online payment when the total is final, and let freight customers pay online after staff confirm the costs ("Pay now" in the confirmation email and on the order page)?
  • #113 Refunds: full refunds on cancellation only, with partial refunds done in Mollie's dashboard?

Before I can build step 3, you'll need a Mollie account and its test API key in your environment as MOLLIE_API_KEY; steps 1 and 2 work without it.

User · 06:06

#111 leave that to stuff, as long as the order is not cancelled, material is blocked #112 freight orders: let's come up with an automatic derivation, by country and a configuring model: shipping cost, first step: fixed value + percentage. #113 OK.

Claude · 06:06

Understood. For #112, I'll check how freight costs are computed today before updating the design.

Design agreed and committed (5cdbd5c). Starting with step 0: freight costs as a fixed amount plus a percentage.

Tests are green. Now the admin menu: "Vorfälle" moves to "Verwaltung", plus a dev-only link to the mailbox.

The formatter changed the layout of that block; reading the current version.

Passing navigate={false} to <.link> is shaky. Two explicit links are clearer.

Green. Committing the two changes separately.

Both are done and committed. mix precommit passes with 569 tests.

Admin menu (8e36507):

  • "Vorfälle" is now in "Verwaltung". Sales staff now see a "Verwaltung" section too, containing only that entry.
  • "Postfach (Dev)" is the last entry there. It only exists in development builds, not on a server.

Calculated freight costs (a2f1108, step 0 of the payment design, #112):

  • A shipping rate now costs its fixed amount plus an optional percentage of the goods value, for every method; free_from stays as it was.
  • Biber Holz freight is no longer an estimate: Austria €89 + 2 %, Germany and Italy €189 + 3 %. A €5,000 order to Germany pays €339 freight, and the total is final, so it can be paid online.
  • The "estimated costs, confirmed by staff" mode still works per deployment. The test config uses it, so it stays tested.

Restart needed: please restart mix phx.server. The new freight rates are in config/config.exs, which the server only reads at startup. Your existing demo orders keep their stored costs.

Next is payment step 1: the provider interface, a fake provider for tests, the OnlinePayment record and the new payment method "Online bezahlen". Shall I continue with that?

User · 06:16

before: the admin menu items are perfectly grouped in the sidebar, can you also group them in the content pane?

Claude · 06:16

I assume you mean the dashboard at /admin, which shows the entries as cards. Let me look at how it's built.

I used navigate={false} again, the thing I'd just called shaky. Checking how <.link> actually handles it.

<.link> uses navigate when it's a string, otherwise href. false works only by accident of clause order; nil is the intended "not set". I'll use that.

Adding test assertions for the grouping.

The shortcut cards on the admin dashboard (/admin) are now grouped like the sidebar, assuming that's the content pane you meant. Committed as cfd5ca5; mix precommit passes with 569 tests.

  • Grouping: each section has its heading ("Vertrieb", "Katalog", "Inhalte", "Verwaltung"), followed by its cards. The dashboard card itself is gone, since you're already on that page. Each person still only sees the sections their roles allow.
  • Incidents card: "Vorfälle" shows the number of open incidents as a red badge, like in the sidebar.
  • Dev mailbox: "Postfach (Dev)" appears as a card too, in development only.

Shall I continue with payment step 1 (provider interface, fake provider, OnlinePayment, payment method "Online bezahlen")?

User · 06:18

yes, and let's make the providers switchable from admin (NOT configurable, just switchable)

Claude · 06:18

Before building, let me check whether there's already a mechanism for settings changed at runtime.

Now the payments layer: the provider behaviour, the registry with the active provider, and the simulator.

Now the simulator: a small process owns an ETS table with the simulated payments.

The simulator must never be selectable in a real shop: customers could "pay" without paying. So it's registered only in dev and test, and later explicitly for the demo deployment.

Now the payment method :online: it's offered only while a provider is active.

Next the OnlinePayment resource in the Sales domain.

The migration looks right. Migrating the dev database, then the admin page for switching.

Adding the route and the admin menu entry.

Compiles cleanly. Now the tests. Tests that write the payment_provider setting all touch the same unique row, so they run non-async (the parallel-test lesson from earlier).

Passing. Running precommit.

That's a pure unit test without a database, and methods_for now reads the setting. Switching it to the data case; it only reads, so it stays async.

Green with 578 tests. Updating the design note (switchable providers, simulator) and the Operations moduledoc, then committing.

Step 1 is committed (e9f4366), with the provider switch you asked for. mix precommit passes with 578 tests.

  • Switching, not configuring: there's a new "Zahlungsanbieter" page in "Verwaltung" for administrators. It lists the providers set up for this shop, plus "Keine Online-Zahlung", and you choose which one is active. Credentials stay in the deployment's environment; the page shows "Nicht eingerichtet" for a provider that lacks them.
  • Where the choice lives: it's stored as the first runtime setting, in a small Setting resource in the Operations domain. A payment keeps the provider it was started with, so switching never affects open payments.
  • Simulator: a provider with no external service behind it, so you can test without any account. It's registered only in dev and the tests, never by default on a server, because customers could "pay" without paying. For the demo we'll register it on purpose in phase 8.
  • "Online bezahlen": the new payment method appears at checkout only while a provider is active. Each payment attempt is recorded on the order (OnlinePayment, with provider, status, amount and method).

Please restart mix phx.server: the simulator registration is in config/dev.exs, and the new supervised process only starts with the server. Afterwards you can already switch providers under Verwaltung → Zahlungsanbieter. Checkout doesn't use online payment yet; that's step 2.

Step 2: the checkout redirects to the payment page, the simulator gets its "Bezahlen / Fehlschlagen / Abbrechen" page, and a return page checks the status, marks the order paid, or offers "Pay now" again. Shall I continue?

User · 06:26

restarted, yes

Claude · 06:26

Starting step 2. First how checkout and the order's mark_paid work.

Three fixes before compiling. Incident titles and the order-event note must be translated in the shop's language, not the customer's. And map.field in a guard is shaky, so store/2 gets an if.

Now the web side, starting with the routes. The webhook gets no browser pipeline: providers post without a session or CSRF token.

Now the simulator's payment page. It uses the shop layout with a clear "this is a simulation" notice. A decision there also triggers the webhook path, just as a real provider would.

The order page gets the "pay now" button and handles the return from the provider. To keep redirects uniform, the simulator will return an absolute URL like real providers do.

handle_params also runs for the static first render. I'll only sync once the LiveView is connected, so the provider is asked once and the patch happens over the socket.

Now the checkout: "Online bezahlen" is left out when the shipping costs are only an estimate, and after placing an online order the customer goes straight to the payment page.

Compiles. A test provider that always fails goes into test/support, so the error path can be tested as well.

Only the missing translation. Next the LiveView and webhook tests.

push_patch during the connected mount is applied directly when the test mounts the view. assert_patch only sees patches after that, so I'll check the page content instead.

Passing. Now the German texts.

Yes, I'll add that next: a card form on the simulator page, like a provider's own page, with the two test cards listed. First the two Credo findings in the test.

Moving the number grouping into a helper for readability, then updating the tests.

A bug in my own code: {:error, :unknown_card} also matches the pattern {_number, outcome}. Using a separate lookup function instead.

All 22 pass. Now the translations for the card form.

Step 2 is done, including the card form you asked for. Committed as 12c242e; mix precommit passes with 593 tests.

To try it:

  1. As Anna, go to Verwaltung → Zahlungsanbieter and choose the simulator.
  2. As Karl or Lena, put something in the basket and choose "Online bezahlen" at checkout.
  3. After "Bestellen" you land on the simulator's payment page, which asks for card number, expiry and security code and lists the test cards:
    • 4242 4242 4242 4242: paid. You're sent back to the shop, the order shows "Bezahlt", and the back office has an order event "Online bezahlt (creditcard)" by the system.
    • 4000 0000 0000 0002: declined. Back in the shop, the order says "Die letzte Zahlung wurde nicht abgeschlossen" and offers "Jetzt bezahlen".
    • Any other number, a past expiry date or a malformed security code shows an error on the page, so you can correct it.
    • Below the form are "Mit EPS-Überweisung bezahlen" and "Zahlung abbrechen".

How it fits together:

  • Two ways the shop learns the result: when the customer comes back, the shop asks the provider for the status itself; the webhook (POST /payments/<provider>/webhook) does the same check. The simulator also triggers the webhook path, so both are tested.
  • Paid only once: an order is marked paid a single time, even if the notification arrives twice.
  • Incidents cover a wrong amount, payment arriving for a cancelled order, an unknown payment, and a provider that can't be reached.
  • No online payment for estimates: "Online bezahlen" isn't offered while freight costs are only an estimate. With the new calculated freight costs that's no longer the case for Biber Holz.

Next is step 3, the Mollie adapter. For that I need you to create a Mollie account and put the test key into the environment of your dev server as MOLLIE_API_KEY=test_…. Alternatively, I can do step 4 first: payment attempts and refunds in the back office, plus the "payment received" email. Which do you prefer?

User · 06:40

clicking 'Mit EPS-Überweisung bezahlen' just ... pays. No user interaction, right?

Claude · 06:40

Right. "Mit EPS-Überweisung bezahlen" marks the payment as paid immediately, with no further interaction. With real EPS, the customer chooses their bank and is sent to its online banking, logs in, and confirms the transfer with a code (TAN).

I can simulate that too, in two steps on the simulator page:

  1. Choose the bank: a list of made-up banks ("Demo-Sparkasse", "Testbank Raiffeisen", …).
  2. "Online banking" of that bank: login with user number and PIN, then a TAN step. Like the test cards, the page lists test credentials: one TAN confirms the transfer (paid), another is rejected (failed). There's also an "Abbrechen" button back to the shop (cancelled).

That makes EPS look like the card flow, with a successful and a failing case. It takes about half an hour including tests. Shall I build it, or keep the button simple, since it's only a simulator?

User · 06:41

yes please simulate that as well, clearly stating again, that we just simulate and no real data should be entered

Claude · 06:41

Building it. One detail: the banks will be clearly fictional ("Demo-Bank Waldviertel", "Testbank Alpen", "Musterbank Donau"), not real Austrian bank names, so nothing looks like a real bank's login page.

Two functions named eps_login with different arities would be confusing; renaming the one with the test credentials.

Now the page, rewritten with the steps: start (card or EPS), bank choice, online banking login, TAN. Every step warns that this is a simulation and no real data should be entered.

Compiles. Updating the tests: the error element got a new id, plus the EPS flow with a confirming and a rejected TAN.

All 15 pass. Now the German texts.

The EPS simulation is in, committed as 3241ae1; mix precommit passes with 596 tests.

The EPS flow on the simulator page:

  1. "Mit EPS-Überweisung bezahlen" opens a choice of fictional banks: "Demo-Bank Waldviertel", "Testbank Alpen", "Musterbank Donau". No real bank names, so it never resembles a real banking page.
  2. "Online-Banking der … (simuliert)": login with Verfügernummer and PIN. The test login is shown below: 12345678 / 1234. A wrong login gets an error and you stay on the page.
  3. Confirming the transfer with a TAN:
    • 123456 confirms: paid, the order is paid.
    • 000000 is rejected: the payment fails, and the shop offers "Jetzt bezahlen" again.
    • Any other TAN gets an error on the page.

"Zurück" is available on every step, and "Zahlung abbrechen" at any time.

The warning: every step starts with "Simulation – keine echte Zahlung: Bitte geben Sie hier keine echten Karten- oder Bankdaten ein, nur die angezeigten Testdaten." The test cards, test login and test TANs sit in dashed yellow boxes, so they read as test data, not as part of a real form.

Next is step 3, Mollie (it needs your Mollie account and MOLLIE_API_KEY), or step 4 first (back office, refunds, "payment received" email). Which one?

User · 06:46

neither, we have a online payment already, so I want to keep that in the roadmap and continue wtih the deployment and demo mode. you already created a docker-compose for me that worked perfectly, for a different project, it's at ~/src/phoenix/pan, if that helps.

Claude · 06:46

I'll note Mollie and the back office part as remaining phase 7 steps in the roadmap and move on to phase 8. First a look at the pan setup.

The base image hexpm/elixir:1.20.4-erlang-29.1.1-ubuntu-noble-20260917 exists, and so does the Typst 0.15.1 Linux binary. Writing the design note.

I've recorded #114–#117 and written the design note docs/deployment-design.md, committed as c8e12c2.

What it proposes:

  • Image: two stages, like pan.
    • Build on the official Elixir image with our exact versions; the tag exists, I checked. No Node/npm, because Tailwind and esbuild come as Mix tools.
    • Runtime on Ubuntu 24.04, with the Typst binary and fonts for the PDFs.
    • The demo photos (about 100 MB) are copied in for seeding.
    • Migrations run at startup.
  • Compose: the app plus postgres:17 with a health check, and volumes for the database and uploads. The app publishes one HTTP port (default 4010) for your reverse proxy; DOCKER.md will show an nginx example with the WebSocket headers LiveView needs.
  • Configuration: everything secret or site-specific goes in .env, documented in .env.example.
  • Email: Swoosh's SMTP adapter. The release refuses to start without SMTP settings, so emails can't get lost silently.
  • Demo mode (MERCATOR_MODE=demo, as decided in #44–#48):
    • Seeding on the first start, with the admin password from DEMO_ADMIN_PASSWORD.
    • The public demo logins listed on the login page, and those accounts protected against changes.
    • A "Demo" badge.
    • The payment simulator active.
    • A nightly reset at 03:00 Vienna time that also removes accounts visitors registered.
  • Steps:
    1. release and Docker, built and run here first;
    2. demo mode;
    3. you deploy on the home server following DOCKER.md;
    4. Mollie with webhooks against the real domain.

Two open questions:

  • #118 SMTP account: which mail server will send (the one of mittenin.at, or a service like Brevo or Mailjet)? The credentials only go into .env. I just need to know whether it uses port 587 with STARTTLS (my assumption) or 465 with TLS.
  • #119 New dependency: may I add gen_smtp? Swoosh's SMTP adapter needs it.

User · 06:51

#118 copy over from pan project

yes

Claude · 06:51

Copying the SMTP setup from pan. Let me see how pan does it.

Now the SMTP configuration in runtime.exs, replacing Phoenix's Mailgun example comment.

Next the release module with migrate and seed.

Now the Docker files. Checking the asset aliases first: colocated LiveView hooks need a compile before the asset build.

Probably Sobelow (security checks for Phoenix code) or mix_audit (known vulnerabilities in dependencies). Let me look at pan.

The quoting warnings come from Sobelow reading mix.lock under the newest Elixir; they're noise. The full findings list:

I'm putting the CSP into its own pipeline, applied to the shop and the admin area but not to the dev tools. Wiring it into the router now.

Checking for any other inline scripts in templates (colocated hooks are bundled into app.js and don't count).

No others. Now a test for the header and the nonce.

Both pass. Now I'll record the reviewed Sobelow findings as accepted. Sobelow keeps them in a .sobelow-skips file of fingerprints, so only new findings make mix precommit fail.

Silent and clean. Adding it to mix precommit.

Yes, DOCKER.md is part of this step, in the same style as pan's. First the Credo finding.

Green with 598 tests. Committing the security part first.

Next the compose file, .env.example and DOCKER.md. Checking whether TRUSTED_PROXIES accepts networks (CIDR), because behind Docker the proxy appears with a Docker network address.

Only exact addresses are supported. Behind Docker the reverse proxy shows up with the network's gateway address, which can change. I'll add network ranges (e.g. 172.16.0.0/12).

A prefix longer than the address (say /40 on IPv4) would crash the bit match; adding a guard. Also updating the README line.

Now docker-compose.yml and .env.example.

Making sure .env is gitignored, and checking whether Docker is available here for a local test build.

Docker is available. Starting the image build in the background, since it downloads the base images and compiles everything (several minutes). Meanwhile I'll write DOCKER.md.

The backup command for uploads wouldn't work: the entrypoint passes every command to the release. It needs --entrypoint tar.

Still downloading the base image. Meanwhile I'll commit the Docker files and DOCKER.md; any fixes from the build follow separately.

Credo is clean, and the Docker files are committed (ee8d3ff). The image is still building, with the base image downloaded and system packages installing. I'll report once it's done and do a test run with a local .env.

So far in this step:

  • DOCKER.md is written, in the same style as pan's guide: prerequisites, what runs, setup with .env, the reverse proxy with an nginx example (including the WebSocket headers LiveView needs), build and run, demo data, checks, remote console, updates, reset, backup, troubleshooting.
  • Security (8539aa0):
    • Sobelow is part of mix precommit.
    • Its findings were reviewed: one real gap, the missing Content-Security-Policy, is fixed with a per-request nonce for the one inline script. The rest are false positives and are recorded, so only new findings stop a commit.
    • The vulnerable Bandit version has no fix yet, but behind your proxy (HTTP/1.1) the issue doesn't apply; DOCKER.md says so.
  • Email: SMTP is set up like pan (mail.example.net, port 465), but with the server's certificate checked.
  • Proxy addresses: TRUSTED_PROXIES now accepts networks such as 172.16.0.0/12, so client IPs come through correctly behind Docker.

Until demo mode exists (step 2), the demo data is seeded by hand with one command from DOCKER.md.

User · 07:01

I believe the download has finished.

Claude · 07:01

The download is done; the build is now compiling the dependencies. I'll watch it until it finishes.

No separate watcher is needed after all: the build runs as a background task, and I'm notified as soon as it finishes. I'll report then.

User · 07:02

starting the dev server gives a warning now:

<pasted_content id="6398"> warning: 0..size * tuple_size(address) inside guards requires an explicit step, please write 0..size * tuple_size(address)//1 or 0..size * tuple_size(address)//-1 instead lib/mercator_web/client_ip.ex:75: MercatorWeb.ClientIp.in_network?/3

warning: the variable "bits" is accessed inside size(...) of a bitstring but it was defined outside of the match. You must precede it with the pin operator
│

85 │ <<prefix::bitstring-size(bits), _rest::bitstring>> = binary │ ~ │ └─ lib/mercator_web/client_ip.ex:85:30: MercatorWeb.ClientIp.prefix/3 </pasted_content id="6398">

Claude · 07:02

Two warnings from my ClientIp change. They slipped through because I committed it without a full mix precommit run, my mistake. Fixing both:

Fixed and committed (0143986). A full mix precommit run passes (599 tests), and your dev server compiles without the warnings.

The Docker build has moved on to the asset tools (downloading Tailwind). I'll report when it's done.

The PDF renders in the container with Noto Sans embedded. But at 40 KB it's suspiciously small: locally it was about 600 KB because of the logo. Checking which brand the container shows.

Now Mercator.Brand uses the selected brand, and runtime.exs reads BRAND.

Adding tests: the brand chosen by :brand_key applies, a deployment's own :brand wins over it, and all images of the Biber Holz brand exist.

Passing. Now BRAND in the compose file and .env.example, and rpc instead of eval for seeding in DOCKER.md.

The container now shows the Biber Holz brand. Running precommit and committing.

Phase 8 step 1 works in a local container, and yes, you can test it yourself. It's still running.

How: open http://localhost:4010 in your browser. On localhost the app doesn't insist on HTTPS, so no proxy is needed.

  • Logins: all demo users, including admin@mittenin.at, have the password mercator-demo. The admin password from DEMO_ADMIN_PASSWORD only comes with step 2 (demo mode).
  • What's inside: the full Biber Holz demo with photos, orders, conversations and offers, seeded in the container with one command.
  • PDFs are created with the container's own Typst and fonts.
  • Emails fail on purpose: the test .env points at a mail server that doesn't exist. You'll see them as incidents under Verwaltung → Vorfälle, which also tests that path.
  • Payment simulator: not active in this test container yet; it comes with demo mode.
  • Logs: docker compose -p mercator-test logs -f app
  • Stopping and removing it (including its database and uploads): 
    docker compose -p mercator-test --env-file /tmp/claude-1000/-src-phoenix-mercator/4c06f629-ada8-4897-a191-f995cde52437/scratchpad/test.env down -v

What the test turned up and fixed:

  • Brand (734632c): the container showed the neutral Mercator look, because the Biber Holz brand only existed in the dev config. It's now in config/brands/biberholz.exs and selected with BRAND=biberholz, as decided in #43.
  • Seeding: it has to use bin/mercator rpc; eval would start a second instance on the same port. DOCKER.md is corrected.

For your dev server: please restart it, since the brand moved to another config file. It should still look like Biber Holz afterwards.

Next is step 2, demo mode:

  • automatic seeding on the first start, with the admin password from .env;
  • demo logins on the sign-in page and protected demo accounts;
  • a "Demo" badge;
  • the simulator active;
  • the nightly reset.

After that, the home server.

User · 07:14

tested, works, stop the docker container, we wrap up the session, save your memory

Claude · 07:14

The test container and its volumes are removed, and the working tree is clean. Now the session wrap-up: my notes on how to export the session log first.