Ponomar — Orthodox Calendar PWA

A Progressive Web App for Orthodox Church calendar, liturgical services, and Bible readings.

Derived from the original Java Ponomar application by Aleksandr Andreev, Yuri Shardt and Sergei F..

Demo: https://ponomar.atroshin.ru

Features

Calendar — View month grids with liturgical days, fasting periods, ranks, and commemorations. Supports Julian calendar with Gregorian equivalents.
Service Reader — Assembles liturgical services (Hours, Kathismata) from structured templates with conditional logic.
Bible Reader — Read scripture across 13 versions (Church Slavonic, Russian Synodal, KJV, Brenton, Vulgate, etc.). Per-version reading position persists across sessions.
Multi-language UI — English, Russian, Church Slavonic (with dedicated Slavonic fonts).
PWA — Installable on desktop and mobile devices.
Navigation — 3 top-level items (Calendar, Library, Settings) with Library dropdown: Bible, Service (Horologion, Sbornik, Prayer Rule, Canons & Akathists, Parimii, Paraclete, Irmologion), Feasts (Menaion, Lenten Triodion).

Tech Stack

TypeScript — fully typed
Vite — build tool
Tailwind CSS v4 — utility-first CSS
fast-xml-parser — legacy XML conversion (manual only)

Getting Started

npm install
npm run dev

Data files in static/data/ are pre-converted JSON (not committed). To regenerate from the Java XML sources, run:

npm run convert           # re-convert all data from XML
npm run migrate           # normalize to current format

Set PONOMAR_JAVA_HOME to point at a local clone of the Java Ponomar repository (defaults to ../ponomar).

npm run build    # production build
npm run preview  # preview production build

QA / Validation

npx tsx scripts/validate-i18n.ts   # i18n completeness (en/ru/cu)
npx tsx scripts/validate-tabs.ts   # service tab/template consistency
npx tsx scripts/assembler-test.ts  # service assembler integration tests

Liturgical Text Categories (static/data/shared/services/)

Triodion — 37 sections (Pre-Lent → Great Lent → Holy Week)
Pentecostarion — 50 days (Pascha → All Saints)
Menaion (daily) — 367 daily entries (one per Julian calendar day)
Menaion (feasts) — 34 fixed feasts with dedicated services
Canons — Paraclete (weekday, 8 tones × 6 days = 48), Octoechos (Sunday, 8 tones), Great Canon
Services — 78 data-backed services with full.json (Pascha, Paralytic, Sergius, Pokrov, etc.; Var/I-prefix + bare P-prefix varNodes now intercepted)
Horologion / Sbornik / Prayer Rule / Akathists / Parimii / Paraclete / Irmologion — daily-cycle collections
Lives — Saint lives (pre-existing schema issues, 945 known)

Project Structure

src/
  core/          — Domain logic (calendar, paschalion, service assembly, i18n)
  ui/            — View components (app, calendar, bible, service, settings)
  main.ts        — Entry point
scripts/         — Data conversion, migration, validation, and CLI tools
static/
  data/          — Liturgical data as JSON (not committed, generated from Java XML via npm run convert)
  fonts/         — Church Slavonic fonts
  icons/         — PWA icons

License

Same as the original Java project.

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