name: Architecture Docs

on:
  push:
    branches: [master]

env:
  CARGO_TERM_COLOR: always

jobs:
  generate:
    name: Generate diagrams
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v4

      - name: Install Rust stable
        uses: dtolnay/rust-toolchain@stable

      - name: Cache cargo
        uses: actions/cache@v4
        with:
          path: |
            ~/.cargo/registry
            ~/.cargo/git
            target
          key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
          restore-keys: ${{ runner.os }}-cargo-

      - name: Build
        run: cargo build --release

      - name: Generate project diagram
        run: ./target/release/archlens . --level project --output docs/architecture/project.mmd

      - name: Generate module diagram
        run: ./target/release/archlens . --level module --output docs/architecture/module.mmd

      - name: Generate type diagrams (split)
        run: ./target/release/archlens . --level type --split-by-module --output docs/architecture/type/

      - name: Commit if changed
        run: |
          git config user.name "Archlens Bot"
          git config user.email "archlens@noreply"
          git add docs/architecture/
          git diff --staged --quiet || git commit -m "docs: update architecture diagrams"
          git push || true