Nikolay Tatarinov
86f6d66865
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- Created a new `CHANGELOG.md` file to document all notable changes to the project, adhering to the Keep a Changelog format. - Updated `CONTRIBUTING.md` to include instructions for building and previewing documentation using MkDocs. - Added `mkdocs.yml` configuration for documentation generation, including navigation structure and theme settings. - Enhanced various documentation files, including API reference, architecture overview, configuration reference, and runbook, to provide comprehensive guidance for users and developers. - Included new sections in the README for changelog and documentation links, improving accessibility to project information.
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<h1 id="architecture">Architecture</h1>
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<p>High-level architecture of Duty Teller: components, data flow, and package relationships.</p>
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<h2 id="components">Components</h2>
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<ul>
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<li><strong>Bot</strong> — <a href="https://github.com/python-telegram-bot/python-telegram-bot">python-telegram-bot</a> v22 (Application API). Handles commands and group messages; runs in polling mode.</li>
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<li><strong>FastAPI</strong> — HTTP server: REST API (<code>/api/duties</code>, <code>/api/calendar-events</code>, <code>/api/calendar/ical/{token}.ics</code>) and static miniapp at <code>/app</code>. Runs in a separate thread alongside the bot.</li>
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<li><strong>Database</strong> — SQLAlchemy ORM with Alembic migrations. Default backend: SQLite (<code>data/duty_teller.db</code>). Stores users, duties (with event types: duty, unavailable, vacation), group duty pins, calendar subscription tokens.</li>
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<li><strong>Duty-schedule import</strong> — Two-step admin flow: handover time (timezone → UTC), then JSON file. Parser produces per-person date lists; import service deletes existing duties in range and inserts new ones.</li>
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<li><strong>Group duty pin</strong> — In groups, the bot can pin the current duty message; time/timezone for the pinned text come from <code>DUTY_DISPLAY_TZ</code>. Pin state is restored on startup from the database.</li>
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</ul>
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<h2 id="data-flow">Data flow</h2>
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<ul>
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<li>
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<p><strong>Telegram → bot</strong><br />
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User/group messages → handlers → services or DB. Handlers use <code>duty_teller.services</code> (e.g. import, group duty pin) and <code>duty_teller.db</code> (repository, session). Messages use <code>duty_teller.i18n</code> for Russian/English.</p>
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</li>
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<li>
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<p><strong>Miniapp → API</strong><br />
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Browser opens <code>/app</code>; frontend calls <code>GET /api/duties</code> and <code>GET /api/calendar-events</code> with date range. FastAPI dependencies: DB session, Telegram initData validation (<code>require_miniapp_username</code>), date validation. Data is read via <code>duty_teller.db.repository</code>.</p>
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<li>
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<p><strong>Import</strong><br />
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Admin sends JSON file via <code>/import_duty_schedule</code>. Handler reads file → <code>duty_teller.importers.duty_schedule.parse_duty_schedule()</code> → <code>DutyScheduleResult</code> → <code>duty_teller.services.import_service.run_import()</code> → repository (<code>get_or_create_user_by_full_name</code>, <code>delete_duties_in_range</code>, <code>insert_duty</code>).</p>
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</li>
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<li>
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<p><strong>Personal calendar ICS</strong><br />
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<code>GET /api/calendar/ical/{token}.ics</code> uses the secret token only (no Telegram auth); repository resolves user by token and returns duties; <code>personal_calendar_ics.build_personal_ics()</code> produces ICS bytes.</p>
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</ul>
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<h2 id="package-layout">Package layout</h2>
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<pre><code class="language-mermaid">flowchart LR
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subgraph entry
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main[main.py / duty-teller]
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end
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subgraph duty_teller
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run[run.py]
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config[config.py]
|
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handlers[handlers]
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api[api]
|
|
db[db]
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|
services[services]
|
|
importers[importers]
|
|
i18n[i18n]
|
|
utils[utils]
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|
end
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main --> run
|
|
run --> config
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|
run --> handlers
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|
run --> api
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|
handlers --> services
|
|
handlers --> db
|
|
handlers --> i18n
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|
api --> db
|
|
api --> config
|
|
services --> db
|
|
services --> importers
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importers --> .
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</code></pre>
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<ul>
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<li><strong>handlers</strong> — Telegram command and message handlers; call <code>services</code> and <code>db</code>, use <code>i18n</code> for user-facing text.</li>
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<li><strong>api</strong> — FastAPI app, dependencies (auth, DB session, date validation), calendar ICS builders; uses <code>db.repository</code> and <code>config</code>.</li>
|
|
<li><strong>db</strong> — Models, session (<code>session_scope</code>), repository (CRUD for users, duties, pins, calendar tokens), schemas for API.</li>
|
|
<li><strong>services</strong> — Business logic (import, group duty pin); receive DB session from caller, use <code>importers</code> for parsing.</li>
|
|
<li><strong>importers</strong> — Duty-schedule JSON parser; no DB access, returns structured result.</li>
|
|
<li><strong>i18n</strong> — Translations and language detection (ru/en) for bot and API.</li>
|
|
<li><strong>utils</strong> — Shared helpers (dates, user, handover).</li>
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|
</ul>
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<p>See <a href="../README.md#project-layout">Project layout</a> in README for file-level details.</p>
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