name: Compilation Guard
# Protect compilation state from regression on every push/PR

on:
  push:
    branches: [ main, develop ]
  pull_request:
    branches: [ main ]

env:
  CARGO_TERM_COLOR: always
  RUST_BACKTRACE: 1
  SQLX_OFFLINE: "true"

jobs:
  compilation-guard:
    name: Compilation Guard
    runs-on: ubuntu-latest
    timeout-minutes: 30
    steps:
      - name: Checkout code
        uses: actions/checkout@v4

      - name: Setup Rust toolchain
        uses: dtolnay/rust-toolchain@stable
        with:
          components: clippy, rustfmt

      - name: Setup Rust cache
        uses: Swatinem/rust-cache@v2
        with:
          cache-on-failure: true

      - name: Install system dependencies
        run: |
          sudo apt-get update
          sudo apt-get install -y cmake build-essential pkg-config libssl-dev protobuf-compiler

      - name: Workspace compilation check
        run: |
          echo "Checking workspace compilation..."
          cargo check --workspace --all-targets
          echo "Workspace compiles successfully"

      - name: Clippy check
        run: cargo clippy --workspace --all-targets

      - name: Formatting check
        run: cargo fmt --all -- --check

      - name: Generate dependency tree snapshot
        run: |
          cargo tree --format "{p} {f}" | sort > dependency-tree.txt
          echo "Dependency tree captured ($(wc -l < dependency-tree.txt) entries)"

      - name: Upload compilation artifacts
        uses: actions/upload-artifact@v4
        if: always()
        with:
          name: compilation-guard-artifacts
          path: |
            dependency-tree.txt
          retention-days: 30