name: Documentation

on:
  push:
    tags:
      - 'v*'

jobs:
  docs:
    name: Build and validate documentation
    runs-on: ubuntu-latest
    defaults:
      run:
        working-directory: crates/hyper-custom-cert
    strategy:
      fail-fast: false
      matrix:
        include:
          - name: default-features
            features: ""
            no-default-features: false
          - name: no-default-features
            features: ""
            no-default-features: true
          - name: rustls
            features: "rustls"
            no-default-features: true
          - name: insecure-dangerous
            features: "insecure-dangerous"
            no-default-features: false
          - name: all-features
            features: "rustls,insecure-dangerous"
            no-default-features: true
    steps:
      - name: Checkout
        uses: actions/checkout@v4

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

      - name: Setup Rust
        run: rustup update stable && rustup default stable

      - name: Build documentation
        shell: bash
        run: |
          FLAGS=""
          if [ "${{ matrix.no-default-features }}" = "true" ]; then FLAGS="$FLAGS --no-default-features"; fi
          if [ -n "${{ matrix.features }}" ]; then FLAGS="$FLAGS --features ${{ matrix.features }}"; fi
          echo "Running: cargo doc $FLAGS --no-deps"
          cargo doc $FLAGS --no-deps

      - name: Check documentation warnings
        shell: bash
        run: |
          FLAGS=""
          if [ "${{ matrix.no-default-features }}" = "true" ]; then FLAGS="$FLAGS --no-default-features"; fi
          if [ -n "${{ matrix.features }}" ]; then FLAGS="$FLAGS --features ${{ matrix.features }}"; fi
          echo "Running: cargo doc $FLAGS --no-deps"
          RUSTDOCFLAGS="-D warnings" cargo doc $FLAGS --no-deps

      - name: Test documentation examples
        shell: bash
        run: |
          FLAGS=""
          if [ "${{ matrix.no-default-features }}" = "true" ]; then FLAGS="$FLAGS --no-default-features"; fi
          if [ -n "${{ matrix.features }}" ]; then FLAGS="$FLAGS --features ${{ matrix.features }}"; fi
          echo "Running: cargo test --doc $FLAGS"
          cargo test --doc $FLAGS

  readme-sync:
    name: Check README synchronization
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4

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

      - name: Setup Rust
        run: rustup update stable && rustup default stable


      - name: Install cargo-readme
        run: cargo install cargo-readme

      - name: Check README is up to date
        working-directory: crates/hyper-custom-cert
        run: |
          # Generate README from lib.rs documentation
          cargo readme > README_generated.md
          
          # Compare with existing README
          if ! diff -u README.md README_generated.md; then
            echo "ERROR: README.md is not synchronized with lib.rs documentation"
            echo "Run 'cargo readme > README.md' in crates/hyper-custom-cert/ to update"
            exit 1
          fi
          
          # Clean up
          rm README_generated.md

  link-check:
    name: Check documentation links
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4

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

      - name: Setup Rust
        run: rustup update stable && rustup default stable

      - name: Build documentation
        working-directory: crates/hyper-custom-cert
        run: cargo doc --all-features --no-deps

      - name: Install lychee
        run: |
          curl -sSL https://github.com/lycheeverse/lychee/releases/latest/download/lychee-x86_64-unknown-linux-gnu.tar.gz | tar xz
          sudo mv lychee /usr/local/bin/

      - name: Check links in documentation
        run: |
          # Check links in generated documentation
          lychee 'crates/hyper-custom-cert/target/doc/**/*.html' --exclude-path target --base crates/hyper-custom-cert/target/doc
          
          # Check links in README files
          lychee README.md crates/hyper-custom-cert/README.md