name: Gitea Branch PR, Cloudflare DNS, README generation, & Docker Deployment

on:
  workflow_dispatch:
  push:
    branches-ignore:
      - "main"
      - "renovate/**"
    paths:
      - "**/docker-compose.yml"

env:
  FLARECTL_VERSION: "0.116.0"
  HC_VAULT_VERSION: "1.21.4"
  TEA_VERSION: "0.14.0"

jobs:
  check-and-create-pr:
    name: Check and Create PR
    runs-on: ubuntu-latest
    steps:
      - name: Checkout Code
        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4.3.1
        with:
          fetch-depth: 1

      - name: Gotify Notification
        uses: eikendev/gotify-action@ca0339b85ee8db9fda9c0718aaa7f95e17b3c617 # 0.0.4
        with:
          gotify_api_base: "${{ secrets.RUNNER_GOTIFY_URL }}"
          gotify_app_token: "${{ secrets.RUNNER_GOTIFY_TOKEN }}"
          notification_title: "GITEA: PR Check @ Rinoa"
          notification_message: "Checking for existing PR... 🔍"

      - name: PR Check/Creation
        uses: https://git.trez.wtf/Trez/gitea-auto-pr@main
        with:
          url: ${{ secrets.TREZ_GITEA_URL }}
          token: ${{ secrets.BOT_GITEA_TOKEN }}
          pr-label: docker-compose,manual
          assignee: ${{ github.actor }}

      - name: Gotify Notification
        uses: eikendev/gotify-action@ca0339b85ee8db9fda9c0718aaa7f95e17b3c617 # 0.0.4
        with:
          gotify_api_base: "${{ secrets.RUNNER_GOTIFY_URL }}"
          gotify_app_token: "${{ secrets.RUNNER_GOTIFY_TOKEN }}"
          notification_title: "GITEA: PR Check @ Rinoa"
          notification_message: "PR Check done 🎟️"

  generate-service-list:
    name: Generate list of added/modified/deleted services
    runs-on: ubuntu-latest
    needs: [check-and-create-pr]
    outputs:
      svc_deploy_list: ${{ steps.detect_services.outputs.docker_svc_list }}
    steps:
      - name: Checkout
        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4.3.1

      - name: Fetch base branch
        run: |
          git fetch origin ${{ github.event.pull_request.base.ref }}

      - name: Gotify Notification
        uses: eikendev/gotify-action@ca0339b85ee8db9fda9c0718aaa7f95e17b3c617 # 0.0.4
        with:
          gotify_api_base: "${{ secrets.RUNNER_GOTIFY_URL }}"
          gotify_app_token: "${{ secrets.RUNNER_GOTIFY_TOKEN }}"
          notification_title: "GITEA: Services TBD"
          notification_message: "Generating list of services to deploy..."

      - name: Save both versions of docker-compose.yml
        run: |
          git show origin/main:docker-compose.yml > docker-compose-main.yml || touch docker-compose-main.yml
          cp docker-compose.yml docker-compose-head.yml

      - name: Detect added, deleted, and modified services
        id: detect_services
        run: |
          set +e  # prevent failure on non-zero exit codes

          echo "Getting services from main and ${{ github.ref_name }}"
          yq '.services | keys | .[]' docker-compose-main.yml | sort > services_main.txt
          yq '.services | keys | .[]' docker-compose-head.yml | sort > services_head.txt

          echo "Creating list of service changes..."
          touch service_changes.txt

          # Detect newly added services
          comm -13 services_main.txt services_head.txt 2>/dev/null | while read service; do
            [ -n "$service" ] && echo "$service: added" >> service_changes.txt
          done

          # Detect removed services
          comm -23 services_main.txt services_head.txt 2>/dev/null | while read service; do
            [ -n "$service" ] && echo "$service: removed" >> service_changes.txt
          done

          # Detect modified services
          comm -12 services_main.txt services_head.txt 2>/dev/null | while read service; do
            yq ".services[\"$service\"]" docker-compose-main.yml > tmp_main.yml
            yq ".services[\"$service\"]" docker-compose-head.yml > tmp_head.yml
            if ! diff -q tmp_main.yml tmp_head.yml > /dev/null; then
              echo "$service: modified" >> service_changes.txt
            fi
          done

          echo "Detected service changes:"
          cat service_changes.txt || echo "None"

          # Separate categories safely
          added_svcs=$(grep -E ': added' service_changes.txt 2>/dev/null | cut -d':' -f1 | sort | uniq)
          modified_svcs=$(grep -E ': modified' service_changes.txt 2>/dev/null | cut -d':' -f1 | sort | uniq)
          removed_svcs=$(grep -E ': removed' service_changes.txt 2>/dev/null | cut -d':' -f1 | sort | uniq)

          # Gather list of modified/added services
          mod_svcs=$( (echo "$added_svcs"; echo "$modified_svcs") | tr ' ' '\n' | sort -u | grep -v '^$' || true)

          if [ -z "$mod_svcs" ]; then
            echo "No modified or added services detected."
            echo "docker_svc_list<<EOF" >> "$GITHUB_OUTPUT"
            echo "" >> "$GITHUB_OUTPUT"
            echo "EOF" >> "$GITHUB_OUTPUT"
          else
            echo "Modified/added services:"
            echo "$mod_svcs"

            # Include direct dependencies (only if head file exists)
            if [ -f docker-compose-head.yml ]; then
              echo "Resolving direct dependencies..."
              deps_list=""
              for svc in $mod_svcs; do
                deps=$(yq -r ".services[\"$svc\"].depends_on | keys | .[]" docker-compose-head.yml 2>/dev/null || true)
                if [ -n "$deps" ]; then
                  echo "$svc depends on:"
                  echo "$deps"
                  deps_list="$deps_list $deps"
                fi
              done

              all_svcs=$( (echo "$mod_svcs"; echo "$deps_list") | tr ' ' '\n' | sort -u)
            else
              all_svcs="$mod_svcs"
            fi

            echo "Final service list (including direct dependencies):"
            echo "$all_svcs"

            echo "docker_svc_list<<EOF" >> "$GITHUB_OUTPUT"
            echo "$all_svcs" >> "$GITHUB_OUTPUT"
            echo "EOF" >> "$GITHUB_OUTPUT"
          fi

          # Output removed services separately
          echo "Removed services:"
          echo "${removed_svcs:-None}"
          echo "removed_svc_list<<EOF" >> "$GITHUB_OUTPUT"
          echo "$removed_svcs" >> "$GITHUB_OUTPUT"
          echo "EOF" >> "$GITHUB_OUTPUT"

          # Always exit cleanly
          exit 0

  docker-compose-dry-run:
    name: Docker Compose Dry Run
    needs: [generate-service-list]
    runs-on: ubuntu-latest
    env:
      VAULT_ADDR: ${{ secrets.TREZ_VAULT_ADDR }}
      VAULT_TOKEN: ${{ secrets.VAULT_GITEA_TOKEN }}
      VAULT_NAMESPACE: ""
      RINOA_REGISTRY_PASSWORD: ${{ secrets.BOT_GITEA_PASSWORD }}
      DOCKER_SVC_LIST: ${{ needs.generate-service-list.outputs.svc_deploy_list }}
    steps:
      - name: Checkout
        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4.3.1

      - name: Login to Docker Hub
        uses: docker/login-action@5e57cd118135c172c3672efd75eb46360885c0ef # v3.6.0
        with:
          username: ${{ secrets.DOCKERHUB_USER }}
          password: ${{ secrets.DOCKERHUB_PASSWORD }}

      - name: Login to GitHub Container Registry
        uses: docker/login-action@5e57cd118135c172c3672efd75eb46360885c0ef # v3.6.0
        with:
          registry: ghcr.io
          username: ${{ secrets.GHCR_USER }}
          password: ${{ secrets.GHCR_LOGIN_TOKEN }}

      - name: Login to Private Gitea Registry
        uses: docker/login-action@5e57cd118135c172c3672efd75eb46360885c0ef # v3.6.0
        with:
          registry: git.trez.wtf
          username: ${{ secrets.BOT_GITEA_USER }}
          password: ${{ secrets.BOT_GITEA_PASSWORD }}

      - name: Gotify Notification
        uses: eikendev/gotify-action@ca0339b85ee8db9fda9c0718aaa7f95e17b3c617 # 0.0.4
        with:
          gotify_api_base: "${{ secrets.RUNNER_GOTIFY_URL }}"
          gotify_app_token: "${{ secrets.RUNNER_GOTIFY_TOKEN }}"
          notification_title: "GITEA: Docker Compose Dry Run @ Rinoa"
          notification_message: "Starting Docker Compose dry run..."

      - name: Generate .env from Hashicorp Vault
        uses: https://git.trez.wtf/Trez/hc-vault-env@main
        with:
          HC_VAULT_VERSION: ${{ env.HC_VAULT_VERSION }}
          HC_VAULT_ADDR: ${{ secrets.TREZ_VAULT_ADDR }}
          HC_VAULT_AUTH: token
          HC_VAULT_TOKEN: ${{ secrets.VAULT_GITEA_TOKEN }}
          HC_VAULT_SECRETS_PATH: rinoa-docker/env

      - name: Pre-pull/build service images in parallel
        continue-on-error: true
        uses: https://git.trez.wtf/Trez/docker-select-image-pull@main
        env:
          DOCKER_HOST: tcp://dockerproxy:2375
        with:
          services: ${{ env.DOCKER_SVC_LIST }}
          compose_profile: "rinoa-apps"

      - name: Docker Compose Dry Run
        uses: hoverkraft-tech/compose-action@05da55b2bb8a5a759d1c4732095044bd9018c050 # v2.4.3
        env:
          DOCKER_HOST: tcp://dockerproxy:2375
        with:
          services: |
            ${{ needs.generate-service-list.outputs.svc_deploy_list }}
          up-flags: -d --remove-orphans --dry-run
          compose-flags: --dry-run --profile rinoa-apps
          services-log-level: debug

      - name: Gotify Notification
        uses: eikendev/gotify-action@ca0339b85ee8db9fda9c0718aaa7f95e17b3c617 # 0.0.4
        with:
          gotify_api_base: "${{ secrets.RUNNER_GOTIFY_URL }}"
          gotify_app_token: "${{ secrets.RUNNER_GOTIFY_TOKEN }}"
          notification_title: "GITEA: Docker Compose Dry Run @ Rinoa"
          notification_message: "Docker Compose dry run completed successfully."

  cloudflare-dns-setup:
    name: Cloudflare DNS Setup
    needs: [docker-compose-dry-run]
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4.3.1
        with:
          fetch-depth: 1

      - name: Install flarectl
        uses: supplypike/setup-bin@8e3f88b4f143d9b5c3497f0fc12d45c83c123787 # v4.0.1
        with:
          uri: https://github.com/cloudflare/cloudflare-go/releases/download/v${{ env.FLARECTL_VERSION }}/flarectl_${{ env.FLARECTL_VERSION }}_linux_amd64.tar.gz
          name: flarectl
          version: ${{ env.FLARECTL_VERSION }}

      - name: Grab Subdomains from Docker Compose & Cloudflare
        id: grab-subdomains
        env:
          CF_API_TOKEN: ${{ secrets.CF_API_TOKEN }}
          CF_API_EMAIL: ${{ secrets.CF_API_EMAIL }}
        run: |
          yq -r '.services[].labels.swag_url' docker-compose.yml | \
            egrep -v 'null' | \
            awk -F'.' '{print $1}' | \
            sort > compose_subdomains.txt

          flarectl --json dns list \
            --zone "trez.wtf" \
            --type=CNAME \
            --content "trez.wtf" \
            | jq -r '.[].Name' | awk -F"." '{print $1}' | \
            sort > cloudflare_subdomains.txt

      - name: Gotify Notification
        uses: eikendev/gotify-action@ca0339b85ee8db9fda9c0718aaa7f95e17b3c617 # 0.0.4
        with:
          gotify_api_base: "${{ secrets.RUNNER_GOTIFY_URL }}"
          gotify_app_token: "${{ secrets.RUNNER_GOTIFY_TOKEN }}"
          notification_title: "GITEA: Cloudflare Setup @ Rinoa"
          notification_message: "Starting Cloudflare DNS setup..."

      - name: Compare Subdomains
        id: compare-subdomains
        uses: LouisBrunner/diff-action@9ea7b75986aa27143ad4928974c98a5a1bd92170 # v2.2.0
        with:
          old: compose_subdomains.txt
          new: cloudflare_subdomains.txt
          mode: addition
          tolerance: mixed-better
          output: domain_compare.txt

      - name: Create Subdomains
        if: steps.compare-subdomains.outputs.output != ''
        continue-on-error: true
        env:
          CF_API_TOKEN: ${{ secrets.CF_API_TOKEN }}
          CF_API_EMAIL: ${{ secrets.CF_API_EMAIL }}
        run: |
          cat domain_compare.txt | egrep '^-[a-z]' | sed -e 's|-||g' | while read -r subdomain; do
            echo "Creating $subdomain.trez.wtf..."
            flarectl dns create --zone "trez.wtf" --name "${subdomain}" --type=CNAME --content "trez.wtf" --proxy true
          done

      - name: Gotify Notification
        uses: eikendev/gotify-action@ca0339b85ee8db9fda9c0718aaa7f95e17b3c617 # 0.0.4
        with:
          gotify_api_base: "${{ secrets.RUNNER_GOTIFY_URL }}"
          gotify_app_token: "${{ secrets.RUNNER_GOTIFY_TOKEN }}"
          notification_title: "GITEA: Cloudflare Setup @ Rinoa"
          notification_message: "Cloudflare DNS setup completed successfully."

  pr-merge:
    name: PR Merge
    needs: [generate-service-list, docker-compose-dry-run]
    if: github.ref != 'refs/heads/main'
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4.3.1

      - name: Install tea
        uses: supplypike/setup-bin@8e3f88b4f143d9b5c3497f0fc12d45c83c123787 # v4.0.1
        with:
          uri: https://gitea.com/gitea/tea/releases/download/v${{ env.TEA_VERSION }}/tea-${{ env.TEA_VERSION }}-linux-amd64
          name: tea
          version: ${{ env.TEA_VERSION }}

      - name: PR Merge
        id: pr_merge
        run: |
          tea login add \
            --name gitea-rinoa \
            --url "${{ secrets.TREZ_GITEA_URL }}" \
            --user gitea-sonarqube-bot \
            --password "${{ secrets.BOT_GITEA_PASSWORD }}" \
            --token ${{ secrets.BOT_GITEA_TOKEN }}

          tea login default gitea-rinoa

          echo "Merging PR..."

          pr_index=$(tea pr ls \
            --repo ${{ github.repository }} \
            --state open --fields index,title,head,state \
            --output csv | \
            egrep ${{ github.ref_name }} | awk -F"," '{print $1}' | sed -e 's|"||g')

          tea pr m \
            --repo ${{ github.repository }} \
            --title "Auto Merge of PR ${pr_index} - ${{ github.ref_name }}" \
            --message "Merged by ${{ github.actor }}" ${pr_index}

          echo "pr_index=${pr_index}" >> $GITHUB_OUTPUT

      - name: Gotify Notification
        uses: eikendev/gotify-action@ca0339b85ee8db9fda9c0718aaa7f95e17b3c617 # 0.0.4
        with:
          gotify_api_base: "${{ secrets.RUNNER_GOTIFY_URL }}"
          gotify_app_token: "${{ secrets.RUNNER_GOTIFY_TOKEN }}"
          notification_title: "GITEA: PR Merge Successful"
          notification_message: "PR #${{ steps.pr_merge.outputs.pr_index }} merged."

  docker-compose-deploy:
    name: Docker Compose Deployment
    runs-on: ubuntu-latest
    needs: [generate-service-list, docker-compose-dry-run, pr-merge]
    env:
      VAULT_ADDR: ${{ secrets.TREZ_VAULT_ADDR }}
      VAULT_TOKEN: ${{ secrets.VAULT_GITEA_TOKEN }}
      DOCKER_HOST: tcp://dockerproxy:2375
      RINOA_REGISTRY_PASSWORD: ${{ secrets.BOT_GITEA_PASSWORD }}
      DOCKER_SVC_LIST: ${{ needs.generate-service-list.outputs.svc_deploy_list }}
    steps:
      - name: Checkout
        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4.3.1
        with:
          ref: main

      - name: Login to Docker Hub
        uses: docker/login-action@5e57cd118135c172c3672efd75eb46360885c0ef # v3.6.0
        with:
          username: ${{ secrets.DOCKERHUB_USER }}
          password: ${{ secrets.DOCKERHUB_PASSWORD }}

      - name: Login to GitHub Container Registry
        uses: docker/login-action@5e57cd118135c172c3672efd75eb46360885c0ef # v3.6.0
        with:
          registry: ghcr.io
          username: ${{ secrets.GHCR_USER }}
          password: ${{ secrets.GHCR_LOGIN_TOKEN }}

      - name: Login to Private Gitea Registry
        uses: docker/login-action@5e57cd118135c172c3672efd75eb46360885c0ef # v3.6.0
        with:
          registry: git.trez.wtf
          username: ${{ secrets.BOT_GITEA_USER }}
          password: ${{ secrets.BOT_GITEA_PASSWORD }}

      - name: Gotify Notification
        uses: eikendev/gotify-action@ca0339b85ee8db9fda9c0718aaa7f95e17b3c617 # 0.0.4
        with:
          gotify_api_base: "${{ secrets.RUNNER_GOTIFY_URL }}"
          gotify_app_token: "${{ secrets.RUNNER_GOTIFY_TOKEN }}"
          notification_title: "GITEA: Docker Compose Deployment @ Rinoa"
          notification_message: "Starting Docker Compose run..."

      - name: Generate .env from Hashicorp Vault
        uses: https://git.trez.wtf/Trez/hc-vault-env@main
        with:
          HC_VAULT_VERSION: ${{ env.HC_VAULT_VERSION }}
          HC_VAULT_ADDR: ${{ secrets.TREZ_VAULT_ADDR }}
          HC_VAULT_AUTH: token
          HC_VAULT_TOKEN: ${{ secrets.VAULT_GITEA_TOKEN }}
          HC_VAULT_SECRETS_PATH: rinoa-docker/env

      - name: Pre-pull/build service images in parallel
        uses: https://git.trez.wtf/Trez/docker-select-image-pull@main
        env:
          DOCKER_HOST: tcp://dockerproxy:2375
        with:
          services: ${{ env.DOCKER_SVC_LIST }}
          compose_profile: "rinoa-apps"

      - name: Docker Compose Deployment
        uses: hoverkraft-tech/compose-action@05da55b2bb8a5a759d1c4732095044bd9018c050 # v2.4.3
        env:
          DOCKER_HOST: tcp://dockerproxy:2375
        with:
          services: |
            ${{ needs.generate-service-list.outputs.svc_deploy_list }}
          up-flags: -d --remove-orphans
          down-flags: --dry-run
          compose-flags: --profile rinoa-apps
          services-log-level: debug

      - name: Docker Compose Healthcheck
        uses: jaracogmbh/docker-compose-health-check-action@973fbdccf7c8e396b652d3501984c8e530a9fa80 # v1.0.0
        with:
          max-retries: 30
          retry-interval: 10
          compose-file: "docker-compose.yml"
          skip-exited: "true"
          skip-no-healthcheck: "true"

      - name: Gotify Notification
        uses: eikendev/gotify-action@ca0339b85ee8db9fda9c0718aaa7f95e17b3c617 # 0.0.4
        with:
          gotify_api_base: "${{ secrets.RUNNER_GOTIFY_URL }}"
          gotify_app_token: "${{ secrets.RUNNER_GOTIFY_TOKEN }}"
          notification_title: "GITEA: Docker Compose Deployment @ Rinoa"
          notification_message: "Deployment completed successfully."