name: Deploy to Production

on:
  push:
    branches:
      - main
  release:
    types: [published]
  workflow_dispatch:
    inputs:
      environment:
        description: 'Environment to deploy to'
        required: true
        default: 'production'
        type: choice
        options:
          - staging
          - production

env:
  RAILWAY_SERVICE: backend
  ENVIRONMENT: ${{ github.event.inputs.environment || 'production' }}

jobs:
  deploy-backend:
    name: Deploy Backend to Railway
    runs-on: ubuntu-latest
    environment: ${{ github.event.inputs.environment || 'production' }}

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

      - name: Install Railway CLI
        run: |
          curl -fsSL https://railway.app/install.sh | sh
          echo "$HOME/.railway/bin" >> $GITHUB_PATH

      - name: Deploy to Railway
        env:
          RAILWAY_TOKEN: ${{ secrets.RAILWAY_TOKEN }}
        run: |
          railway up --service ${{ env.RAILWAY_SERVICE }} --environment ${{ env.ENVIRONMENT }}

      - name: Wait for deployment to complete
        env:
          RAILWAY_TOKEN: ${{ secrets.RAILWAY_TOKEN }}
        run: |
          echo "Waiting for Railway deployment to stabilize..."
          sleep 30

      - name: Get deployment URL
        id: get-url
        env:
          RAILWAY_TOKEN: ${{ secrets.RAILWAY_TOKEN }}
        run: |
          DEPLOY_URL=$(railway domain --service ${{ env.RAILWAY_SERVICE }} --environment ${{ env.ENVIRONMENT }} 2>/dev/null || echo "")
          echo "DEPLOY_URL=$DEPLOY_URL" >> $GITHUB_OUTPUT
          echo "Backend deployed to: $DEPLOY_URL"

      - name: Health check
        if: steps.get-url.outputs.DEPLOY_URL != ''
        run: |
          echo "Running health check on ${{ steps.get-url.outputs.DEPLOY_URL }}"

          # Retry health check up to 10 times
          for i in {1..10}; do
            if curl -f "${{ steps.get-url.outputs.DEPLOY_URL }}/health" 2>/dev/null; then
              echo "✅ Health check passed"
              exit 0
            fi
            echo "Health check attempt $i failed, retrying in 10s..."
            sleep 10
          done

          echo "❌ Health check failed after 10 attempts"
          exit 1

      - name: Save deployment metadata
        id: metadata
        run: |
          echo "DEPLOY_TIME=$(date -u +%Y-%m-%dT%H:%M:%SZ)" >> $GITHUB_OUTPUT
          echo "DEPLOY_SHA=${{ github.sha }}" >> $GITHUB_OUTPUT
          echo "DEPLOY_ACTOR=${{ github.actor }}" >> $GITHUB_OUTPUT
          echo "DEPLOY_BRANCH=${{ github.ref_name }}" >> $GITHUB_OUTPUT

    outputs:
      deploy_url: ${{ steps.get-url.outputs.DEPLOY_URL }}
      deploy_time: ${{ steps.metadata.outputs.DEPLOY_TIME }}
      deploy_sha: ${{ steps.metadata.outputs.DEPLOY_SHA }}

  deploy-frontend:
    name: Deploy Frontend to Cloudflare Pages
    runs-on: ubuntu-latest
    environment: ${{ github.event.inputs.environment || 'production' }}

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

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

      - name: Install dependencies
        run: npm ci

      - name: Build frontend
        env:
          VITE_API_URL: ${{ secrets.VITE_API_URL }}
          VITE_ENV: ${{ env.ENVIRONMENT }}
        run: npm run build

      - name: Deploy to Cloudflare Pages
        uses: cloudflare/pages-action@v1
        with:
          apiToken: ${{ secrets.CLOUDFLARE_API_TOKEN }}
          accountId: ${{ secrets.CLOUDFLARE_ACCOUNT_ID }}
          projectName: ${{ secrets.CLOUDFLARE_PROJECT_NAME }}
          directory: dist
          gitHubToken: ${{ secrets.GITHUB_TOKEN }}
          branch: ${{ github.ref_name }}

      - name: Verify frontend deployment
        run: |
          FRONTEND_URL="${{ secrets.CLOUDFLARE_PAGES_URL }}"
          echo "Verifying frontend at $FRONTEND_URL"

          # Wait for Cloudflare propagation
          sleep 30

          # Check if frontend loads
          for i in {1..5}; do
            if curl -f "$FRONTEND_URL" 2>/dev/null; then
              echo "✅ Frontend is accessible"
              exit 0
            fi
            echo "Attempt $i failed, retrying in 10s..."
            sleep 10
          done

          echo "❌ Frontend verification failed"
          exit 1

  notify-stakeholders:
    name: Notify Stakeholders
    needs: [deploy-backend, deploy-frontend]
    runs-on: ubuntu-latest
    if: success()

    steps:
      - name: Extract Project Key from repo name
        id: project-key
        run: |
          # Extract from repo name: blackroad-ACME-X7K9-backend → ACME-X7K9
          REPO_NAME="${{ github.repository }}"
          PROJECT_KEY=$(echo "$REPO_NAME" | sed -n 's/.*blackroad-\([A-Z0-9-]*\)-.*/\1/p')

          if [ -z "$PROJECT_KEY" ]; then
            echo "Warning: Could not extract project key from repo name"
            PROJECT_KEY="UNKNOWN"
          fi

          echo "PROJECT_KEY=$PROJECT_KEY" >> $GITHUB_OUTPUT
          echo "Extracted project key: $PROJECT_KEY"

      - name: Update Salesforce Project record
        if: steps.project-key.outputs.PROJECT_KEY != 'UNKNOWN'
        env:
          SF_INSTANCE_URL: ${{ secrets.SALESFORCE_INSTANCE_URL }}
          SF_ACCESS_TOKEN: ${{ secrets.SALESFORCE_ACCESS_TOKEN }}
        run: |
          curl -X PATCH \
            "$SF_INSTANCE_URL/services/data/v58.0/sobjects/Project__c/Project_Key__c/${{ steps.project-key.outputs.PROJECT_KEY }}" \
            -H "Authorization: Bearer $SF_ACCESS_TOKEN" \
            -H "Content-Type: application/json" \
            -d '{
              "Last_Deploy_At__c": "${{ needs.deploy-backend.outputs.deploy_time }}",
              "Last_Deploy_SHA__c": "${{ needs.deploy-backend.outputs.deploy_sha }}",
              "Last_Deploy_Branch__c": "${{ github.ref_name }}",
              "Last_Deploy_Actor__c": "${{ github.actor }}",
              "Deploy_Status__c": "Success",
              "Environment__c": "${{ env.ENVIRONMENT }}",
              "Backend_URL__c": "${{ needs.deploy-backend.outputs.deploy_url }}",
              "Release_Notes_URL__c": "https://github.com/${{ github.repository }}/commit/${{ github.sha }}"
            }' || echo "Warning: Failed to update Salesforce"

      - name: Create Salesforce Deployment record
        if: steps.project-key.outputs.PROJECT_KEY != 'UNKNOWN'
        env:
          SF_INSTANCE_URL: ${{ secrets.SALESFORCE_INSTANCE_URL }}
          SF_ACCESS_TOKEN: ${{ secrets.SALESFORCE_ACCESS_TOKEN }}
        run: |
          curl -X POST \
            "$SF_INSTANCE_URL/services/data/v58.0/sobjects/Deployment__c" \
            -H "Authorization: Bearer $SF_ACCESS_TOKEN" \
            -H "Content-Type: application/json" \
            -d '{
              "Name": "${{ steps.project-key.outputs.PROJECT_KEY }} - ${{ github.sha }}",
              "Project_Key__c": "${{ steps.project-key.outputs.PROJECT_KEY }}",
              "Deployed_At__c": "${{ needs.deploy-backend.outputs.deploy_time }}",
              "Git_SHA__c": "${{ github.sha }}",
              "Git_Branch__c": "${{ github.ref_name }}",
              "Deployed_By__c": "${{ github.actor }}",
              "Status__c": "Success",
              "Environment__c": "${{ env.ENVIRONMENT }}",
              "Repository__c": "${{ github.repository }}",
              "Commit_URL__c": "https://github.com/${{ github.repository }}/commit/${{ github.sha }}"
            }' || echo "Warning: Failed to create Deployment record"

      - name: Update Asana tasks
        if: steps.project-key.outputs.PROJECT_KEY != 'UNKNOWN' && env.ENVIRONMENT == 'production'
        env:
          ASANA_PAT: ${{ secrets.ASANA_PAT }}
          ASANA_WORKSPACE_GID: ${{ secrets.ASANA_WORKSPACE_GID }}
        run: |
          PROJECT_KEY="${{ steps.project-key.outputs.PROJECT_KEY }}"

          # Find Asana project by name containing PROJECT_KEY
          PROJECT_GID=$(curl -s "https://app.asana.com/api/1.0/projects?workspace=$ASANA_WORKSPACE_GID&opt_fields=name,gid" \
            -H "Authorization: Bearer $ASANA_PAT" | \
            jq -r ".data[] | select(.name | contains(\"$PROJECT_KEY\")) | .gid" | head -n 1)

          if [ -z "$PROJECT_GID" ]; then
            echo "Warning: Could not find Asana project for $PROJECT_KEY"
            exit 0
          fi

          echo "Found Asana project: $PROJECT_GID"

          # Find "Deploy" task
          TASK_GID=$(curl -s "https://app.asana.com/api/1.0/projects/$PROJECT_GID/tasks?opt_fields=name,gid,completed" \
            -H "Authorization: Bearer $ASANA_PAT" | \
            jq -r '.data[] | select(.name | test("Deploy.*production"; "i")) | select(.completed == false) | .gid' | head -n 1)

          if [ -z "$TASK_GID" ]; then
            echo "No pending deploy task found in Asana"
            exit 0
          fi

          echo "Found deploy task: $TASK_GID"

          # Mark task as complete
          curl -X PUT "https://app.asana.com/api/1.0/tasks/$TASK_GID" \
            -H "Authorization: Bearer $ASANA_PAT" \
            -H "Content-Type: application/json" \
            -d '{"data": {"completed": true}}' || echo "Warning: Failed to complete task"

          # Add comment with deploy details
          curl -X POST "https://app.asana.com/api/1.0/tasks/$TASK_GID/stories" \
            -H "Authorization: Bearer $ASANA_PAT" \
            -H "Content-Type: application/json" \
            -d '{
              "data": {
                "text": "✅ Deployed to production\n\n**Commit:** ${{ github.sha }}\n**By:** ${{ github.actor }}\n**Time:** ${{ needs.deploy-backend.outputs.deploy_time }}\n**Link:** https://github.com/${{ github.repository }}/commit/${{ github.sha }}"
              }
            }' || echo "Warning: Failed to add comment"

      - name: Notify Slack
        env:
          SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK_DEPLOYS }}
        run: |
          STATUS_EMOJI="✅"
          curl -X POST "$SLACK_WEBHOOK_URL" \
            -H "Content-Type: application/json" \
            -d '{
              "blocks": [
                {
                  "type": "section",
                  "text": {
                    "type": "mrkdwn",
                    "text": "'"$STATUS_EMOJI"' *Deploy to '"${{ env.ENVIRONMENT }}"'*\n\n*Project:* '"${{ steps.project-key.outputs.PROJECT_KEY }}"'\n*Repo:* `${{ github.repository }}`\n*Commit:* <https://github.com/${{ github.repository }}/commit/${{ github.sha }}|'"${GITHUB_SHA:0:7}"'>\n*By:* ${{ github.actor }}\n*Backend:* ${{ needs.deploy-backend.outputs.deploy_url }}"
                  }
                }
              ]
            }' || echo "Warning: Failed to send Slack notification"

  rollback-on-failure:
    name: Rollback on Failure
    needs: [deploy-backend, deploy-frontend]
    runs-on: ubuntu-latest
    if: failure()

    steps:
      - name: Notify failure
        env:
          SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK_DEPLOYS }}
        run: |
          curl -X POST "$SLACK_WEBHOOK_URL" \
            -H "Content-Type: application/json" \
            -d '{
              "blocks": [
                {
                  "type": "section",
                  "text": {
                    "type": "mrkdwn",
                    "text": "❌ *Deploy FAILED*\n\n*Repo:* `${{ github.repository }}`\n*Commit:* <https://github.com/${{ github.repository }}/commit/${{ github.sha }}|'"${GITHUB_SHA:0:7}"'>\n*By:* ${{ github.actor }}\n\n⚠️ Manual intervention may be required. Check the <https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}|workflow run> for details."
                  }
                }
              ]
            }' || true