name: "update project version"

on:
  workflow_dispatch:
    inputs:
      target_version:
        description: 'next version (e.g., 1.9.7 or 1.9.7.12)'
        required: true
        default: '1.9.7'
      target_soversion:
        description: 'next soversion (e.g., 28). leave blank to keep current.'
        required: false

jobs:
  bump-and-verify:
    runs-on: ubuntu-latest
    permissions:
      contents: write
      pull-requests: write
    steps:
      - name: checkout code
        uses: actions/checkout@v4

      - name: update project files
        id: update_files
        run: |
          VER="${{ github.event.inputs.target_version }}"
          SOVER="${{ github.event.inputs.target_soversion }}"
          echo "bumping version to $VER"

          # 1. CMakeLists.txt
          if [ -f CMakeLists.txt ]; then
            echo "updating cmakelists.txt"
            # match VERSION only within the project block
            sed -i "/project[[:space:]]*([[:space:]]*jsoncpp/,/)/ s/VERSION [0-9.]*/VERSION $VER/" CMakeLists.txt
            if [ -n "$SOVER" ]; then
              sed -i "s/set(PROJECT_SOVERSION [0-9]*/set(PROJECT_SOVERSION $SOVER/" CMakeLists.txt
            fi
          fi

          # 2. meson.build
          if [ -f meson.build ]; then
            echo "updating meson.build"
            # match version : 'x.y.z' with flexible quotes and spacing
            sed -i "s/version[[:space:]]*:[[:space:]]*['\"][0-9.]*['\"]/version : '$VER'/" meson.build
            if [ -n "$SOVER" ]; then
              # matches soversion : '26'
              sed -i "s/soversion[[:space:]]*:[[:space:]]*['\"][0-9]*['\"]/soversion : '$SOVER'/" meson.build
            fi
          fi

          # 3. vcpkg.json
          if [ -f vcpkg.json ]; then
            echo "updating vcpkg.json"
            jq ".version = \"$VER\"" vcpkg.json > vcpkg.json.tmp && mv vcpkg.json.tmp vcpkg.json
          fi

          # 4. include/json/version.h
          if [ -f include/json/version.h ]; then
            echo "updating version.h"
            # 1.9.7.12 -> MAJOR=1, MINOR=9, PATCH=7, QUALIFIER=12
            IFS='.' read -r MAJOR MINOR PATCH QUALIFIER <<< "$VER"
            
            sed -i "s|#define JSONCPP_VERSION_STRING \"[^\"]*\"|#define JSONCPP_VERSION_STRING \"$VER\"|" include/json/version.h
            sed -i "s|#define JSONCPP_VERSION_MAJOR [0-9]*|#define JSONCPP_VERSION_MAJOR $MAJOR|" include/json/version.h
            sed -i "s|#define JSONCPP_VERSION_MINOR [0-9]*|#define JSONCPP_VERSION_MINOR $MINOR|" include/json/version.h
            sed -i "s|#define JSONCPP_VERSION_PATCH [0-9]*|#define JSONCPP_VERSION_PATCH $PATCH|" include/json/version.h
            
            if [ -n "$QUALIFIER" ]; then
              sed -i "s|#define JSONCPP_VERSION_QUALIFIER.*|#define JSONCPP_VERSION_QUALIFIER $QUALIFIER|" include/json/version.h
            else
              sed -i "s|#define JSONCPP_VERSION_QUALIFIER.*|#define JSONCPP_VERSION_QUALIFIER|" include/json/version.h
            fi
          fi

      - name: sanity check (cmake configure)
        run: |
          if [ -f CMakeLists.txt ]; then
            mkdir build_check
            cd build_check
            cmake .. -DJSONCPP_WITH_TESTS=OFF -DJSONCPP_WITH_POST_BUILD_UNITTEST=OFF
            cd ..
            rm -rf build_check
          fi

      - name: create pull request
        uses: peter-evans/create-pull-request@v7
        with:
          token: ${{ secrets.GITHUB_TOKEN }}
          commit-message: "chore: bump version to ${{ github.event.inputs.target_version }}"
          branch: "bump-to-${{ github.event.inputs.target_version }}"
          title: "chore: bump version to ${{ github.event.inputs.target_version }}"
          body: |
            automated version bump.
            - new version: `${{ github.event.inputs.target_version }}`
            - new soversion: `${{ github.event.inputs.target_soversion || 'no change' }}`
          labels: "maintenance"