name: Build & Deploy Web, Bot & Cache Proxy

on:
  push:
    branches:
      - main
  workflow_dispatch:

jobs:
  build-and-push:
    name: Build and Push to Docker Hub
    runs-on: ubuntu-latest
    outputs:
      web_tag: ${{ steps.vars.outputs.web_tag }}
      bot_tag: ${{ steps.vars.outputs.bot_tag }}
      cache_proxy_tag: ${{ steps.vars.outputs.cache_proxy_tag }}
      # Добавляем output-ы для отслеживания, какие проекты были собраны
      web_built: ${{ steps.filter.outputs.web }}
      bot_built: ${{ steps.filter.outputs.bot }}
      cache_proxy_built: ${{ steps.filter.outputs.cache_proxy }}
    steps:
      - name: Checkout code
        uses: actions/checkout@v3

      # --- НОВОЕ: Шаг 1: dorny/paths-filter для условной сборки ---
      - name: Filter changed paths
        uses: dorny/paths-filter@v2
        id: filter
        with:
          filters: |
            web:
              - 'apps/web/**'
              - 'packages/**'
            bot:
              - 'apps/bot/**'
              - 'packages/**'
            cache_proxy:
              - 'apps/cache-proxy/**'
      # -----------------------------------------------------------
      - name: Create .env file for build
        run: |
          echo "BOT_TOKEN=fake" > .env
          echo "LOGIN_GRAPHQL=fake" >> .env
          echo "PASSWORD_GRAPHQL=fake" >> .env
          echo "URL_GRAPHQL=http://localhost/graphql" >> .env
          echo "EMAIL_GRAPHQL=fake@example.com" >> .env
          echo "NEXTAUTH_SECRET=fakesecret" >> .env
          echo "BOT_URL=http://localhost:3000" >> .env
          echo "REDIS_PASSWORD=fake" >> .env
          echo "BOT_PROVIDER_TOKEN=fake" >> .env
          echo "SUPPORT_TELEGRAM_URL=${{ secrets.SUPPORT_TELEGRAM_URL }}" >> .env
          echo "URL_OFFER=${{ secrets.URL_OFFER }}" >> .env
          echo "URL_PRIVACY=${{ secrets.URL_PRIVACY }}" >> .env
          echo "URL_FAQ=${{ secrets.URL_FAQ }}" >> .env

      - name: Set image tags
        id: vars
        run: |
          echo "web_tag=web-${GITHUB_SHA::7}" >> $GITHUB_OUTPUT
          echo "bot_tag=bot-${GITHUB_SHA::7}" >> $GITHUB_OUTPUT
          echo "cache_proxy_tag=cache-proxy-${GITHUB_SHA::7}" >> $GITHUB_OUTPUT

      - name: Login to Docker Hub
        run: echo "${{ secrets.DOCKERHUB_TOKEN }}" | docker login -u "${{ secrets.DOCKERHUB_USERNAME }}" --password-stdin

      # --- ИЗМЕНЕНО: Условное выполнение Build/Push ---
      - name: Build web image
        if: steps.filter.outputs.web == 'true'
        run: |
          docker build -t ${{ secrets.DOCKERHUB_USERNAME }}/zapishis-web:${{ steps.vars.outputs.web_tag }} -f ./apps/web/Dockerfile .

      - name: Push web image to Docker Hub
        if: steps.filter.outputs.web == 'true'
        run: |
          docker push ${{ secrets.DOCKERHUB_USERNAME }}/zapishis-web:${{ steps.vars.outputs.web_tag }}

      - name: Build bot image
        if: steps.filter.outputs.bot == 'true'
        run: |
          docker build -t ${{ secrets.DOCKERHUB_USERNAME }}/zapishis-bot:${{ steps.vars.outputs.bot_tag }} -f ./apps/bot/Dockerfile .

      - name: Push bot image to Docker Hub
        if: steps.filter.outputs.bot == 'true'
        run: |
          docker push ${{ secrets.DOCKERHUB_USERNAME }}/zapishis-bot:${{ steps.vars.outputs.bot_tag }}

      - name: Build cache-proxy image
        if: steps.filter.outputs.cache_proxy == 'true'
        run: |
          docker build -t ${{ secrets.DOCKERHUB_USERNAME }}/zapishis-cache-proxy:${{ steps.vars.outputs.cache_proxy_tag }} -f ./apps/cache-proxy/Dockerfile .

      - name: Push cache-proxy image to Docker Hub
        if: steps.filter.outputs.cache_proxy == 'true'
        run: |
          docker push ${{ secrets.DOCKERHUB_USERNAME }}/zapishis-cache-proxy:${{ steps.vars.outputs.cache_proxy_tag }}
      # -------------------------------------------------

  deploy:
    name: Deploy to VPS
    needs: build-and-push
    runs-on: ubuntu-latest
    environment: production
    steps:
      - name: Checkout code
        uses: actions/checkout@v3

      - name: Setup SSH key
        run: |
          mkdir -p ~/.ssh
          echo "${{ secrets.VPS_SSH_KEY }}" > ~/.ssh/id_rsa
          chmod 600 ~/.ssh/id_rsa
          ssh-keyscan -p ${{ secrets.VPS_PORT }} -H ${{ secrets.VPS_HOST }} >> ~/.ssh/known_hosts

      - name: Ensure zapishis directory exists on VPS
        run: |
          ssh -i ~/.ssh/id_rsa -p ${{ secrets.VPS_PORT }} -o StrictHostKeyChecking=no ${{ secrets.VPS_USER }}@${{ secrets.VPS_HOST }} "mkdir -p /home/${{ secrets.VPS_USER }}/zapishis"

      # --- НОВОЕ: Шаг 2: Создание основного .env БЕЗ ТЕГОВ ---
      - name: Create .env file for deploy
        run: |
          # Включаем все секреты, КРОМЕ тегов
          echo "BOT_TOKEN=${{ secrets.BOT_TOKEN }}" > .env
          echo "LOGIN_GRAPHQL=${{ secrets.LOGIN_GRAPHQL }}" >> .env
          echo "PASSWORD_GRAPHQL=${{ secrets.PASSWORD_GRAPHQL }}" >> .env
          echo "URL_GRAPHQL=${{ secrets.URL_GRAPHQL }}" >> .env
          echo "EMAIL_GRAPHQL=${{ secrets.EMAIL_GRAPHQL }}" >> .env
          echo "NEXTAUTH_SECRET=${{ secrets.NEXTAUTH_SECRET }}" >> .env
          echo "BOT_URL=${{ secrets.BOT_URL }}" >> .env
          echo "DOCKERHUB_USERNAME=${{ secrets.DOCKERHUB_USERNAME }}" >> .env
          echo "REDIS_PASSWORD=${{ secrets.REDIS_PASSWORD }}" >> .env
          echo "BOT_PROVIDER_TOKEN=${{ secrets.BOT_PROVIDER_TOKEN }}" >> .env
          echo "SUPPORT_TELEGRAM_URL=${{ secrets.SUPPORT_TELEGRAM_URL }}" >> .env
          echo "URL_OFFER=${{ secrets.URL_OFFER }}" >> .env
          echo "URL_PRIVACY=${{ secrets.URL_PRIVACY }}" >> .env
          echo "URL_FAQ=${{ secrets.URL_FAQ }}" >> .env

      # --- НОВОЕ: Шаг 3: Создание файлов тегов (.project.env) ---
      - name: Create Project Tag Env Files
        run: |
          # Создаем файлы, которые будут содержать только одну переменную с тегом
          echo "WEB_IMAGE_TAG=${{ needs.build-and-push.outputs.web_tag }}" > .env.web
          echo "BOT_IMAGE_TAG=${{ needs.build-and-push.outputs.bot_tag }}" > .env.bot
          echo "CACHE_PROXY_IMAGE_TAG=${{ needs.build-and-push.outputs.cache_proxy_tag }}" > .env.cache-proxy

      # --- Шаг 4: Копирование .env и УСЛОВНОЕ копирование тегов ---

      # Копируем основной .env всегда
      - name: Copy .env to VPS via SCP (Always)
        uses: appleboy/scp-action@master
        with:
          host: ${{ secrets.VPS_HOST }}
          username: ${{ secrets.VPS_USER }}
          key: ${{ secrets.VPS_SSH_KEY }}
          port: ${{ secrets.VPS_PORT }}
          source: '.env'
          target: '/home/${{ secrets.VPS_USER }}/zapishis/'

      # Копируем .env.web ТОЛЬКО, если web был собран (обновляем тег на VPS)
      - name: Copy .env.web to VPS
        if: ${{ needs.build-and-push.outputs.web_built == 'true' }}
        uses: appleboy/scp-action@master
        with:
          host: ${{ secrets.VPS_HOST }}
          username: ${{ secrets.VPS_USER }}
          key: ${{ secrets.VPS_SSH_KEY }}
          port: ${{ secrets.VPS_PORT }}
          source: '.env.web'
          target: '/home/${{ secrets.VPS_USER }}/zapishis/'

      # Копируем .env.bot ТОЛЬКО, если bot был собран
      - name: Copy .env.bot to VPS
        if: ${{ needs.build-and-push.outputs.bot_built == 'true' }}
        uses: appleboy/scp-action@master
        with:
          host: ${{ secrets.VPS_HOST }}
          username: ${{ secrets.VPS_USER }}
          key: ${{ secrets.VPS_SSH_KEY }}
          port: ${{ secrets.VPS_PORT }}
          source: '.env.bot'
          target: '/home/${{ secrets.VPS_USER }}/zapishis/'

      # Копируем .env.cache-proxy ТОЛЬКО, если cache-proxy был собран
      - name: Copy .env.cache-proxy to VPS
        if: ${{ needs.build-and-push.outputs.cache_proxy_built == 'true' }}
        uses: appleboy/scp-action@master
        with:
          host: ${{ secrets.VPS_HOST }}
          username: ${{ secrets.VPS_USER }}
          key: ${{ secrets.VPS_SSH_KEY }}
          port: ${{ secrets.VPS_PORT }}
          source: '.env.cache-proxy'
          target: '/home/${{ secrets.VPS_USER }}/zapishis/'

      - name: Copy docker-compose.yml to VPS via SCP
        uses: appleboy/scp-action@master
        with:
          host: ${{ secrets.VPS_HOST }}
          username: ${{ secrets.VPS_USER }}
          key: ${{ secrets.VPS_SSH_KEY }}
          port: ${{ secrets.VPS_PORT }}
          source: 'docker-compose.yml'
          target: '/home/${{ secrets.VPS_USER }}/zapishis/'

      # --- ФИНАЛЬНЫЙ ДЕПЛОЙ ---
      - name: Login and deploy on VPS
        run: |
          ssh -i ~/.ssh/id_rsa -p ${{ secrets.VPS_PORT }} -o StrictHostKeyChecking=no ${{ secrets.VPS_USER }}@${{ secrets.VPS_HOST }} "
            cd /home/${{ secrets.VPS_USER }}/zapishis && \
            
            # 1. Объединение ВСЕХ ENV-файлов в один основной .env
            # Теги из .env.web/.env.bot переопределят любые старые/пустые значения, 
            # и .env станет полным и актуальным.
            echo \"Merging environment files into .env...\" && \
            cat .env .env.web .env.bot .env.cache-proxy > .temp_env && \
            mv .temp_env .env && \
            
            # 2. Логин
            docker login -u ${{ secrets.DOCKERHUB_USERNAME }} -p ${{ secrets.DOCKERHUB_TOKEN }}
            
            # 3. Pull ВСЕХ сервисов (Docker Compose автоматически использует обновленный .env)
            echo \"Pulling all services...\" && \
            docker compose pull
            
            # 4. Перезапуск
            docker compose down && \
            docker compose up -d
          "