name: ITDA Issue Resolver

on:
  issues:
    types: [opened, labeled]
  issue_comment:
    types: [created]
  workflow_dispatch:
    inputs:
      issue_number:
        description: 'Issue number to resolve'
        required: true
        type: number

permissions:
  issues: write
  pull-requests: write
  contents: write

jobs:
  analyze-issue:
    name: Analyze Issue
    runs-on: ubuntu-latest
    # 수동 실행, 라벨 추가(itda-resolve), 또는 코멘트(/itda resolve)로 트리거
    if: |
      github.event_name == 'workflow_dispatch' ||
      (github.event_name == 'issues' && contains(github.event.issue.labels.*.name, 'itda-resolve')) ||
      (github.event_name == 'issue_comment' && startsWith(github.event.comment.body, '/itda resolve'))

    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Setup Node.js
        uses: actions/setup-node@v4
        with:
          node-version: '20'

      - name: Install ITDA
        run: npm install -g itda-sdd

      - name: Get Issue Number
        id: issue
        run: |
          if [ "${{ github.event_name }}" == "workflow_dispatch" ]; then
            echo "number=${{ github.event.inputs.issue_number }}" >> $GITHUB_OUTPUT
          else
            echo "number=${{ github.event.issue.number }}" >> $GITHUB_OUTPUT
          fi

      - name: Analyze Issue
        id: analyze
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          itda-resolve analyze ${{ steps.issue.outputs.number }} \
            --output json > analysis.json

          echo "result<<EOF" >> $GITHUB_OUTPUT
          cat analysis.json >> $GITHUB_OUTPUT
          echo "EOF" >> $GITHUB_OUTPUT

      - name: Comment Analysis
        uses: actions/github-script@v7
        with:
          script: |
            const analysis = ${{ steps.analyze.outputs.result }};

            let comment = `## 🤖 ITDA Issue Analysis\n\n`;
            comment += `**Type**: ${analysis.issueType}\n`;
            comment += `**Status**: ${analysis.status}\n\n`;

            if (analysis.requirements && analysis.requirements.length > 0) {
              comment += `### Extracted Requirements\n\n`;
              analysis.requirements.forEach((req, i) => {
                comment += `${i + 1}. ${req}\n`;
              });
              comment += '\n';
            }

            comment += `### Next Steps\n\n`;
            comment += `- Add label \`itda-implement\` to create a branch and PR\n`;
            comment += `- Or comment \`/itda implement\` to proceed\n\n`;
            comment += `---\n_Analyzed by ITDA Issue Resolver_`;

            await github.rest.issues.createComment({
              owner: context.repo.owner,
              repo: context.repo.repo,
              issue_number: ${{ steps.issue.outputs.number }},
              body: comment
            });

      - name: Add Analyzed Label
        uses: actions/github-script@v7
        with:
          script: |
            await github.rest.issues.addLabels({
              owner: context.repo.owner,
              repo: context.repo.repo,
              issue_number: ${{ steps.issue.outputs.number }},
              labels: ['itda-analyzed']
            });

  create-pr:
    name: Create PR
    runs-on: ubuntu-latest
    needs: analyze-issue
    if: |
      always() &&
      (contains(github.event.issue.labels.*.name, 'itda-implement') ||
       (github.event_name == 'issue_comment' && contains(github.event.comment.body, '/itda implement')))

    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Setup Node.js
        uses: actions/setup-node@v4
        with:
          node-version: '20'

      - name: Install ITDA
        run: npm install -g itda-sdd

      - name: Get Issue Number
        id: issue
        run: |
          echo "number=${{ github.event.issue.number }}" >> $GITHUB_OUTPUT

      - name: Create Branch and PR
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          itda-resolve implement ${{ steps.issue.outputs.number }} --draft

      - name: Comment Success
        if: success()
        uses: actions/github-script@v7
        with:
          script: |
            await github.rest.issues.createComment({
              owner: context.repo.owner,
              repo: context.repo.repo,
              issue_number: ${{ steps.issue.outputs.number }},
              body: `## ✅ PR Created\n\nA draft PR has been created to address this issue.\n\n_Created by ITDA Issue Resolver_`
            });