version-bump.yml

name: "version-bump"

on:
  workflow_dispatch:
    inputs:
      release_type:
        description: "Release Type"
        type: choice
        required: true
        options:
          - patch
          - minor
          - major
        default: patch
      environment:
        description: "Release Environment"
        type: choice
        required: true
        options:
          - development
          - production
          - staging
        default: production

jobs:
  create-version-bump-pr:
    permissions:
      contents: write
      pull-requests: write
    runs-on: ubuntu-latest

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

      - name: get current version and calculate new version
        id: version
        uses: actions/github-script@v7
        env:
          RELEASE_TYPE: ${{ inputs.release_type }}
        with:
          script: |
            const { version } = require('./package.json')
            const [major, minor, patch] = version.split('.').map(Number)

            let newVersion
            if (process.env.RELEASE_TYPE === 'major') {
              newVersion = `${major + 1}.0.0`
            } else if (process.env.RELEASE_TYPE === 'minor') {
              newVersion = `${major}.${minor + 1}.0`
            } else {
              newVersion = `${major}.${minor}.${patch + 1}`
            }

            core.setOutput('current_version', version)
            core.setOutput('new_version', newVersion)
            console.log(`Bumping version from ${version} to ${newVersion}`)

      - name: update package.json
        uses: actions/github-script@v7
        env:
          NEW_VERSION: ${{ steps.version.outputs.new_version }}
        with:
          script: |
            const fs = require('fs')
            const packageJson = JSON.parse(fs.readFileSync('./package.json', 'utf8'))
            packageJson.version = process.env.NEW_VERSION
            fs.writeFileSync('./package.json', JSON.stringify(packageJson, null, 2) + '\n')

      - name: update Cargo.toml and Cargo.lock
        run: |
          sed -i 's/^version = ".*"/version = "${{ steps.version.outputs.new_version }}"/' src-tauri/Cargo.toml
          cd src-tauri
          cargo update -p exam-env

      - name: update tauri.conf.json
        uses: actions/github-script@v7
        env:
          NEW_VERSION: ${{ steps.version.outputs.new_version }}
        with:
          script: |
            const fs = require('fs')
            const tauriConf = JSON.parse(fs.readFileSync('./src-tauri/tauri.conf.json', 'utf8'))
            tauriConf.version = process.env.NEW_VERSION
            fs.writeFileSync('./src-tauri/tauri.conf.json', JSON.stringify(tauriConf, null, 2) + '\n')

      - name: generate changelog since last release
        id: changelog
        uses: actions/github-script@v7
        env:
          ENVIRONMENT: ${{ inputs.environment }}
        with:
          script: |
            const { execSync } = require('child_process')
            const environment = process.env.ENVIRONMENT

            // Find the last release tag for this environment
            let lastTag
            try {
              const tags = execSync('git tag --list --sort=-version:refname', { encoding: 'utf8' })
                .split('\n')
                .filter(tag => tag.includes(environment))
              lastTag = tags[0] || null
            } catch (error) {
              console.log('No previous tags found for this environment')
              lastTag = null
            }

            // Get commits since last tag (or all commits if no tag exists)
            let gitLogCmd
            if (lastTag) {
              gitLogCmd = `git log ${lastTag}..HEAD --pretty=format:"%h - %s (%an)" --no-merges`
              console.log(`Generating changelog since ${lastTag}`)
            } else {
              gitLogCmd = 'git log --pretty=format:"%h - %s (%an)" --no-merges'
              console.log('Generating changelog for all commits (no previous release found)')
            }

            let changelog
            try {
              changelog = execSync(gitLogCmd, { encoding: 'utf8' })
            } catch (error) {
              changelog = 'No commits found'
            }

            // Format changelog with categories
            const lines = changelog.split('\n').filter(line => line.trim())
            const categorized = {
              breaking: [],
              features: [],
              fixes: [],
              chores: [],
              other: []
            }

            lines.forEach(line => {
              if (line.match(/breaking(\(.*?\))?:/i)) {
                categorized.breaking.push(line)
              } else if (line.match(/feat(\(.*?\))?:/i)) {
                categorized.features.push(line)
              } else if (line.match(/fix(\(.*?\))?:/i)) {
                categorized.fixes.push(line)
              } else if (line.match(/(chore|dev)(\(.*?\))?:/i)) {
                categorized.chores.push(line)
              } else {
                categorized.other.push(line)
              }
            })

            let formattedChangelog = ''
            if (categorized.breaking.length > 0) {
              formattedChangelog += '### ⚠️ Breaking Changes\n' + categorized.breaking.map(l => `- ${l}`).join('\n') + '\n\n'
            }
            if (categorized.features.length > 0) {
              formattedChangelog += '### ✨ Features\n' + categorized.features.map(l => `- ${l}`).join('\n') + '\n\n'
            }
            if (categorized.fixes.length > 0) {
              formattedChangelog += '### 🐛 Bug Fixes\n' + categorized.fixes.map(l => `- ${l}`).join('\n') + '\n\n'
            }
            if (categorized.chores.length > 0) {
              formattedChangelog += '### 🔧 Chores\n' + categorized.chores.map(l => `- ${l}`).join('\n') + '\n\n'
            }
            if (categorized.other.length > 0) {
              formattedChangelog += '### 📝 Other Changes\n' + categorized.other.map(l => `- ${l}`).join('\n') + '\n\n'
            }

            if (!formattedChangelog) {
              formattedChangelog = 'No changes found'
            }

            core.setOutput('changelog', formattedChangelog)
            core.setOutput('last_tag', lastTag || 'none')

      - name: create pull request
        uses: peter-evans/create-pull-request@v7
        with:
          token: ${{ secrets.GITHUB_TOKEN }}
          commit-message: "release(${{ steps.version.outputs.new_version }}): ${{ inputs.environment }}"
          branch: release/v${{ steps.version.outputs.new_version }}
          delete-branch: true
          title: "release(${{ steps.version.outputs.new_version }}): ${{ inputs.environment }}"
          body: |
            ## Version Bump: ${{ inputs.release_type }}

            This PR bumps the version from `${{ steps.version.outputs.current_version }}` to `${{ steps.version.outputs.new_version }}`.

            ## 📋 Changelog

            **Since:** ${{ steps.changelog.outputs.last_tag }}

            ${{ steps.changelog.outputs.changelog }}

            ### Next Steps

            Once this PR is merged, the release workflow will automatically trigger to create a new release.
          labels: |
            environment: ${{ inputs.environment }}