# This workflow will generate the database upgrade script for PostgreSQL

name: Generate PostgreSQL database upgrade script.

on:
  workflow_dispatch:

jobs:
  build:

    runs-on: docker
    container:
      image: ubuntu:24.04

    services:
      postgres:
        image: postgres:16.0
        env:
          POSTGRES_USER: libreplan
          POSTGRES_PASSWORD: libreplan
          POSTGRES_DB: libreplandev
        ports:
          - 5432:5432
        options: >-
          --health-cmd pg_isready
          --health-interval 10s
          --health-timeout 5s
          --health-retries 5

    steps:
      # Define job-id
      - name: Debug info
        run: |
          cat <<'EOF'
          ${{ toJSON(forgejo) }}
          EOF

      - name: My current run-id
        run: echo "${{ forgejo.run_id }}"

      # Define job-id  
      - name: install needed software
        run: |
          apt-get update
          apt-get install -y postgresql-client nodejs git maven libpostgresql-jdbc-java

      # Define job-id
      - name: Checkout code
        uses: actions/checkout@v3
        with:
          fetch-depth: 0
          fetch-tags: true
          show-progress: true

      # This is only possible AFTER the checkout step.    
      - name: actions prep
        id: artifact-upload-prep
        run: echo "artifact-id=$(git rev-parse --short=10 HEAD)" >> "$GITHUB_OUTPUT"

      # Let's try caching maven stuff.
      - name: Cache Maven repository
        uses: actions/cache@v4
        with:
          path: ~/.m2/repository
          key: maven-${{ hashFiles('**/pom.xml') }}
          restore-keys: maven-

      # Example 1: create extra database
      # - name: Create libreplandevtest database
      #   env:
      #     PGPASSWORD: ${{ secrets.POSTGRES_PASSWORD }}
      #   run: |
      #     PGPASSWORD='libreplan' psql -h postgres -U libreplan -d postgres -v ON_ERROR_STOP=1 -c "CREATE DATABASE libreplandevtest;"

      - name: Set up Java 8
        uses: actions/setup-java@v4
        with:
          distribution: temurin     # of adopt, zulu, corretto, liberica …
          java-version: 8

      - name: Verify Java version
        run: java -version

      # Determine maven version in container
      - name: Show maven version number
        run: mvn -v

      # Wait for PostgreSQL to be ready
      - name: Wait for PostgreSQL to be ready
        shell: bash
        env:
          PGPASSWORD: libreplan
        run: |
          for i in {1..30}; do
            psql -h postgres -U libreplan -d libreplandev -c 'select 1' && break
            sleep 2
          done
      
      # - name: "Checkout LibrePlan ${{ vars.full_last_release}} first."
      #   shell: bash
      #   run: |  
      #     echo "First checkout older LibrePlan ${{ vars.full_last_release}} release"
      #     git checkout ${{ vars.full_last_release }}
      #     echo "Current branch: $(git rev-parse --abbrev-ref HEAD)"

      # - name: Intermediare patch step. Fix old HTTP repo URLs in POMs
      #   shell: bash
      #   run: |
      #     find . -name "pom.xml" -print0 | xargs -0 sed -i \
      #       -e 's#http://gettext-commons.googlecode.com/svn/maven-repository#https://gettext-commons.googlecode.com/svn/maven-repository#g' \
      #       -e 's#http://nexus.***.org/content/repositories/thirdparty#https://nexus.***.org/content/repositories/thirdparty#g'
      
      # # Setup clean empty database
      # - name: Build clean ${{ vars.short_last_release }} db with Maven
      #   shell: bash
      #   run: |
      #     echo "Running maven to setup a ${{ vars.short_last_release }} database for a clean install"
      #     mvn clean install --no-transfer-progress -DskipTests -P-userguide,-reports,-i18n 

      # Instead of trying to do a build of the old version, just load the old database from the repo files.

      - name: Populate database with database layout of last release.
        shell: bash
        run: |
          echo "Populate database with database layout of ${{ vars.full_last_release }}"
          cat scripts/database/install.sql | PGPASSWORD='libreplan' psql -h postgres -U libreplan -d libreplandev

      - name: Switch to the new release.
        shell: bash
        run: |
          echo "Switch to ${{ vars.short_new_release }}." 
          echo "We do not need to switch as we did not swotch before :-)"
          # git checkout "${{ vars.full_new_release }}"
          echo "Current branch: $(git rev-parse --abbrev-ref HEAD)"
      
      # Yes, this looks ugly. But when cleanup over several lines mvn
      # starts complaining: The POM for  -DdataSource.url=jdbc:postgresql:jar://postgres is missing
      # Starts thinking the datasource url is a pom it should download. Weird.
      - name: "Generate database changes since version ${{ vars.short_last_release }}"
        shell: bash
        run: |
          mvn clean install -DskipTests -P-userguide,-reports,-i18n,-liquibase-update,liquibase-updatesql -DdataSource.url=jdbc:postgresql://postgres:5432/libreplandev -DdataSource.user=libreplan -DdataSource.password=libreplan -DjdbcDriver.className=org.postgresql.Driver  
          # This will/should generate a file libreplan-business/target/liquibase/migrate.sql
          #  with the SQL script to migrate from previous version to the new one.
          ls -l libreplan-business/target/liquibase/migrate.sql

      - name: "The details of the generated migration script are:"
        shell: bash
        run: |
          ls -l libreplan-business/target/liquibase/migrate.sql
          lines=$( cat libreplan-business/target/liquibase/migrate.sql | grep -v '^--' | wc -l )
          echo "The resulting migration script contained $lines lines. Processing migration script."
    
      - name: "Copy the sql-file to database scripts folder"
        shell: bash
        run: |
          cp -v libreplan-business/target/liquibase/migrate.sql scripts/database/upgrade_${{ vars.short_new_release }}.sql
    
      - name: "Add information about version in the script"
        shell: bash
        run: |
          sed -i "s/-- Update Database Script/-- Update Database Script - LibrePlan ${{ vars.short_new_release }}/" scripts/database/upgrade_${{ vars.short_new_release }}.sql

      - name: "Append script at the end of ``install.sql`` file (with a separation of 2 new lines)" 
        shell: bash
        run: |
          echo -ne "\n\n" >> scripts/database/install.sql
          cat scripts/database/upgrade_${{ vars.short_new_release }}.sql >> scripts/database/install.sql

        # Upload the result
      - name: Upload upgrade_${{ vars.short_new_release }}.sql
        uses: actions/upload-artifact@v3
        with:
          name: upgrade_${{ vars.short_new_release }}.sql
          path: scripts/database/upgrade_${{ vars.short_new_release }}.sql
          retention-days: 3

      - name: Upload install.sql
        uses: actions/upload-artifact@v3
        with:
          name: install.sql
          path: scripts/database/install.sql
          retention-days: 3