name: Discord PR Notification

on:
  pull_request:
    types: [opened]
  workflow_dispatch:
    inputs:
      pr_number:
        description: "Pull Request number"
        required: true
        type: string

jobs:
  Discord:
    runs-on: ubuntu-latest
    name: Discord PR Notifier
    steps:
      - uses: actions/checkout@v4
        if: github.event_name == 'workflow_dispatch'

      - name: Get PR info for manual trigger
        id: pr-info
        if: github.event_name == 'workflow_dispatch'
        run: |
          PR_INFO=$(gh pr view ${{ github.event.inputs.pr_number }} --json number,title,url,author,state,labels,createdAt,headRefName,baseRefName,isDraft,mergeable)
          echo "number=$(echo "$PR_INFO" | jq -r '.number')" >> $GITHUB_OUTPUT
          echo "title=$(echo "$PR_INFO" | jq -r '.title')" >> $GITHUB_OUTPUT
          echo "html_url=$(echo "$PR_INFO" | jq -r '.url')" >> $GITHUB_OUTPUT
          echo "author_login=$(echo "$PR_INFO" | jq -r '.author.login')" >> $GITHUB_OUTPUT
          echo "author_html_url=https://github.com/$(echo "$PR_INFO" | jq -r '.author.login')" >> $GITHUB_OUTPUT
          echo "state=$(echo "$PR_INFO" | jq -r '.state')" >> $GITHUB_OUTPUT
          echo "created_at=$(echo "$PR_INFO" | jq -r '.createdAt')" >> $GITHUB_OUTPUT
          echo "labels=$(echo "$PR_INFO" | jq -r '.labels | map(.name) | join(", ") // "None"')" >> $GITHUB_OUTPUT
          echo "head_ref=$(echo "$PR_INFO" | jq -r '.headRefName')" >> $GITHUB_OUTPUT
          echo "base_ref=$(echo "$PR_INFO" | jq -r '.baseRefName')" >> $GITHUB_OUTPUT
          echo "is_draft=$(echo "$PR_INFO" | jq -r '.isDraft')" >> $GITHUB_OUTPUT
          echo "mergeable=$(echo "$PR_INFO" | jq -r '.mergeable // "UNKNOWN"')" >> $GITHUB_OUTPUT
        env:
          GH_TOKEN: ${{ github.token }}

      - name: Determine action color and emoji
        id: action-info
        run: |
          if [ "${{ github.event_name }}" = "workflow_dispatch" ]; then
            # For manual trigger, use the current state
            case "${{ steps.pr-info.outputs.state }}" in
              "OPEN")
                if [ "${{ steps.pr-info.outputs.is_draft }}" = "true" ]; then
                  echo "color=8421504" >> $GITHUB_OUTPUT   # Gray
                  echo "emoji=📝" >> $GITHUB_OUTPUT
                  echo "action_text=Draft" >> $GITHUB_OUTPUT
                else
                  echo "color=5763719" >> $GITHUB_OUTPUT   # Green
                  echo "emoji=🔄" >> $GITHUB_OUTPUT
                  echo "action_text=Open" >> $GITHUB_OUTPUT
                fi
                ;;
              "CLOSED")
                echo "color=15158332" >> $GITHUB_OUTPUT    # Red
                echo "emoji=❌" >> $GITHUB_OUTPUT
                echo "action_text=Closed" >> $GITHUB_OUTPUT
                ;;
              "MERGED")
                echo "color=6559689" >> $GITHUB_OUTPUT     # Purple
                echo "emoji=🎉" >> $GITHUB_OUTPUT
                echo "action_text=Merged" >> $GITHUB_OUTPUT
                ;;
            esac
          else
            # For automatic trigger, use the action
            case "${{ github.event.action }}" in
              "opened")
                echo "color=5763719" >> $GITHUB_OUTPUT     # Green
                echo "emoji=🔄" >> $GITHUB_OUTPUT
                echo "action_text=Opened" >> $GITHUB_OUTPUT
                ;;
              "reopened")
                echo "color=16776960" >> $GITHUB_OUTPUT    # Yellow
                echo "emoji=🔄" >> $GITHUB_OUTPUT
                echo "action_text=Reopened" >> $GITHUB_OUTPUT
                ;;
              "closed")
                if [ "${{ github.event.pull_request.merged }}" = "true" ]; then
                  echo "color=6559689" >> $GITHUB_OUTPUT   # Purple
                  echo "emoji=🎉" >> $GITHUB_OUTPUT
                  echo "action_text=Merged" >> $GITHUB_OUTPUT
                else
                  echo "color=15158332" >> $GITHUB_OUTPUT  # Red
                  echo "emoji=❌" >> $GITHUB_OUTPUT
                  echo "action_text=Closed" >> $GITHUB_OUTPUT
                fi
                ;;
              "ready_for_review")
                echo "color=5763719" >> $GITHUB_OUTPUT     # Green
                echo "emoji=👀" >> $GITHUB_OUTPUT
                echo "action_text=Ready for Review" >> $GITHUB_OUTPUT
                ;;
              "converted_to_draft")
                echo "color=8421504" >> $GITHUB_OUTPUT     # Gray
                echo "emoji=📝" >> $GITHUB_OUTPUT
                echo "action_text=Converted to Draft" >> $GITHUB_OUTPUT
                ;;
            esac
          fi

      - name: Create Discord webhook payload
        run: |
          # Determine data source based on trigger type
          if [ "${{ github.event_name }}" = "workflow_dispatch" ]; then
            PR_NUMBER="${{ steps.pr-info.outputs.number }}"
            PR_TITLE="${{ steps.pr-info.outputs.title }}"
            PR_URL="${{ steps.pr-info.outputs.html_url }}"
            AUTHOR_LOGIN="${{ steps.pr-info.outputs.author_login }}"
            AUTHOR_URL="${{ steps.pr-info.outputs.author_html_url }}"
            PR_STATE="${{ steps.pr-info.outputs.state }}"
            PR_LABELS="${{ steps.pr-info.outputs.labels }}"
            CREATED_AT="${{ steps.pr-info.outputs.created_at }}"
            HEAD_REF="${{ steps.pr-info.outputs.head_ref }}"
            BASE_REF="${{ steps.pr-info.outputs.base_ref }}"
            IS_DRAFT="${{ steps.pr-info.outputs.is_draft }}"
            MERGEABLE="${{ steps.pr-info.outputs.mergeable }}"
          else
            PR_NUMBER="${{ github.event.pull_request.number }}"
            PR_TITLE="${{ github.event.pull_request.title }}"
            PR_URL="${{ github.event.pull_request.html_url }}"
            AUTHOR_LOGIN="${{ github.event.pull_request.user.login }}"
            AUTHOR_URL="${{ github.event.pull_request.user.html_url }}"
            PR_STATE="${{ github.event.pull_request.state }}"
            PR_LABELS="${{ github.event.pull_request.labels[0].name && join(github.event.pull_request.labels.*.name, ', ') || 'None' }}"
            CREATED_AT="${{ github.event.pull_request.created_at }}"
            HEAD_REF="${{ github.event.pull_request.head.ref }}"
            BASE_REF="${{ github.event.pull_request.base.ref }}"
            IS_DRAFT="${{ github.event.pull_request.draft }}"
            MERGEABLE="${{ github.event.pull_request.mergeable || 'UNKNOWN' }}"
          fi

          # Create a temporary JSON file
          cat > discord_payload.json << EOF
          {
            "avatar_url": "https://github.githubassets.com/images/modules/logos_page/GitHub-Mark.png",
            "embeds": [
              {
                "title": "${{ steps.action-info.outputs.emoji }} Pull Request ${{ steps.action-info.outputs.action_text }}: #${PR_NUMBER}",
                "description": "${PR_TITLE}",
                "url": "${PR_URL}",
                "color": ${{ steps.action-info.outputs.color }},
                "thumbnail": {
                  "url": "https://github.githubassets.com/images/modules/logos_page/GitHub-Mark.png"
                },
                "fields": [
                  {
                    "name": "📋 PR #",
                    "value": "\`#${PR_NUMBER}\`",
                    "inline": true
                  },
                  {
                    "name": "👤 Author",
                    "value": "[${AUTHOR_LOGIN}](${AUTHOR_URL})",
                    "inline": true
                  },
                  {
                    "name": "📁 Repository",
                    "value": "[${{ github.event.repository.name }}](${{ github.event.repository.html_url }})",
                    "inline": true
                  },
                  {
                    "name": "🌿 Branch",
                    "value": "\`${HEAD_REF}\` → \`${BASE_REF}\`",
                    "inline": true
                  },
                  {
                    "name": "🏷️ Labels",
                    "value": "${PR_LABELS}",
                    "inline": true
                  },
                  {
                    "name": "📊 Status",
                    "value": "\`${PR_STATE}\`${IS_DRAFT:+\" (Draft)\"}",
                    "inline": true
                  },
                  {
                    "name": "🔗 View PR",
                    "value": "[Pull Request](${PR_URL})",
                    "inline": true
                  },
                  {
                    "name": "✅ Mergeable",
                    "value": "\`${MERGEABLE}\`",
                    "inline": true
                  }
                ],
                "timestamp": "${CREATED_AT}",
                "footer": {
                  "text": "Workout Cool • PR ${{ steps.action-info.outputs.action_text }}",
                  "icon_url": "https://github.githubassets.com/images/modules/logos_page/GitHub-Mark.png"
                }
              }
            ]
          }
          EOF

      - name: Send Discord notification
        run: |
          curl -H "Content-Type: application/json" \
               -d @discord_payload.json \
               "${{ secrets.DISCORD_PR_WEBHOOK }}"