name: Release

on:
  push:
    tags:
      - 'v*'
  workflow_dispatch:
    inputs:
      version:
        description: 'Version tag (e.g., v1.0.0)'
        required: false
        type: string

env:
  BINARY_NAME: claudia-docs
  GO_VERSION: '1.22'

jobs:
  build:
    runs-on: ubuntu-latest
    container:
      image: golang:1.22-alpine

    strategy:
      matrix:
        include:
          - goos: linux
            goarch: amd64
            ext: ''
          - goos: linux
            goarch: arm64
            ext: ''
          - goos: windows
            goarch: amd64
            ext: '.exe'
          - goos: darwin
            goarch: amd64
            ext: ''
          - goos: darwin
            goarch: arm64
            ext: ''

    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Get version
        id: version
        run: |
          VERSION=${{ github.event.inputs.version || github.ref_name }}
          echo "version=${VERSION#v}" >> $GITHUB_OUTPUT
          echo "tag=$VERSION" >> $GITHUB_OUTPUT

      - name: Build
        env:
          GOOS: ${{ matrix.goos }}
          GOARCH: ${{ matrix.goarch }}
          CGO_ENABLED: 0
        run: |
          BINARY="{{ env.BINARY_NAME }}-${{ matrix.goos }}-${{ matrix.goarch }}${{ matrix.ext }}"
          mkdir -p dist

          go build -ldflags="\
            -w -s \
            -X main.version=${{ steps.version.outputs.version }} \
            -X main.commit=$(git rev-parse --short HEAD) \
            -X main.date=$(date -u +%Y-%m-%dT%H:%M:%SZ)" \
            -o "dist/${BINARY}" \
            ./cmd/claudia-docs

      - name: Package
        run: |
          cd dist
          BINARY="{{ env.BINARY_NAME }}-${{ matrix.goos }}-${{ matrix.goarch }}${{ matrix.ext }}"
          
          case "${{ matrix.goos }}" in
            windows)
              apk add --no-cache zip
              zip "${BINARY}.zip" "${BINARY}"
              ;;
            darwin|linux)
              tar -czf "${BINARY}.tar.gz" "${BINARY}"
              ;;
          esac

      - name: Upload artifacts
        uses: actions/upload-artifact@v4
        with:
          name: ${{ matrix.goos }}-${{ matrix.goarch }}
          path: dist/*
          retention-days: 5

  release:
    runs-on: ubuntu-latest
    needs: build
    if: startsWith(github.ref, 'refs/tags/v') || github.event.inputs.version != ''
    container:
      image: alpine:3.19

    steps:
      - name: Setup
        run: apk add --no-cache git curl

      - name: Checkout
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Get version
        id: version
        run: |
          VERSION=${{ github.event.inputs.version || github.ref_name }}
          echo "version=${VERSION#v}" >> $GITHUB_OUTPUT
          echo "tag=$VERSION" >> $GITHUB_OUTPUT

      - name: Download artifacts
        uses: actions/download-artifact@v4
        with:
          path: dist/
          merge-multiple: true

      - name: Generate changelog
        id: changelog
        run: |
          PREV_TAG=$(git tag --sort=-version:refname | sed -n '2p')
          if [ -z "$PREV_TAG" ]; then
            echo "# Changes (full history)" > changelog.md
            git log --pretty=format:"- %s (%h)" -20 >> changelog.md
          else
            echo "# Changes since ${PREV_TAG}" > changelog.md
            git log "${PREV_TAG}..${{ steps.version.outputs.tag }}" \
              --pretty=format="- %s (%h)" >> changelog.md
          fi
          cat changelog.md

      - name: Generate checksums
        run: |
          cd dist
          sha256sum * > checksums.txt
          cat checksums.txt

      - name: Generate install script
        run: |
          cat > install.sh << 'INSTALL_SCRIPT'
          #!/bin/bash
          set -e
          
          VERSION="${VERSION:-latest}"
          BINARY="claudia-docs"
          
          # Detect OS
          OS="$(uname -s | tr '[:upper:]' '[:lower:]')"
          ARCH="$(uname -m)"
          
          # Map architecture
          case "$ARCH" in
            x86_64) ARCH="amd64" ;;
            aarch64|arm64) ARCH="arm64" ;;
          esac
          
          # Map macOS
          [ "$OS" = "darwin" ] && OS="darwin"
          
          # Download
          URL="https://gitea.danielarroyo.cl/proyectos/claudia-docs-cli/releases/download/${VERSION}/claudia-docs-${OS}-${ARCH}"
          
          echo "Installing Claudia Docs CLI ${VERSION}..."
          echo "Downloading from: ${URL}"
          
          curl -fsSL "${URL}" -o "${BINARY}" || {
            echo "Error: Failed to download binary"
            exit 1
          }
          
          chmod +x "${BINARY}"
          
          # Install
          if [ -w /usr/local/bin ]; then
            mv "${BINARY}" /usr/local/bin/
            echo "Installed to /usr/local/bin/claudia-docs"
          else
            echo "Installed to ./claudia-docs (not in PATH)"
          fi
          
          echo "Done!"
          INSTALL_SCRIPT
          chmod +x install.sh

      - name: Create Release
        uses: https://gitea.com/actions/gitea-release-action@v1
        with:
          token: ${{ secrets.RELEASE_TOKEN }}
          tag_name: ${{ steps.version.outputs.tag }}
          name: "Claudia Docs CLI ${{ steps.version.outputs.tag }}"
          body_path: changelog.md
          files: |
            dist/*.tar.gz
            dist/*.zip
            dist/checksums.txt
            install.sh

  latest:
    runs-on: ubuntu-latest
    needs: release
    if: github.event_name == 'push' && github.ref == 'refs/heads/main'
    steps:
      - name: Update latest tag
        run: |
          echo "Latest release updated"