name: 'Install Nodarx Modules'
description: 'Installs custom PHP/Vue modules from git repositories with dependency resolution'
author: 'Nodarx'

branding:
  icon: 'package'
  color: 'purple'

inputs:
  modules:
    description: 'JSON array of modules to install. Example: [{"name":"mail","repo":"https://git.ktrix.dev/Nodarx/mail","branch":"main","dependencies":["mail_manager"]}]'
    required: true
  
  install-path:
    description: 'Base directory where modules will be installed'
    required: false
    default: './modules'
  
  skip-dependencies-check:
    description: 'Skip dependency validation (not recommended)'
    required: false
    default: 'false'

outputs:
  installed-modules:
    description: 'Comma-separated list of installed module names in installation order'
    value: ${{ steps.install.outputs.installed_modules }}
  
  install-path:
    description: 'Path where modules were installed'
    value: ${{ steps.install.outputs.install_path }}
  
  status:
    description: 'Installation status (success/failure)'
    value: ${{ steps.install.outputs.status }}

runs:
  using: 'composite'
  steps:
    - name: Check prerequisites
      shell: bash
      run: |
        echo "::group::Checking prerequisites"
        
        # Check for required commands
        MISSING_CMDS=()
        for cmd in git jq; do
          if ! command -v $cmd &> /dev/null; then
            MISSING_CMDS+=($cmd)
          fi
        done
        
        # Install missing commands
        if [ ${#MISSING_CMDS[@]} -gt 0 ]; then
          echo "Installing missing commands: ${MISSING_CMDS[*]}"
          sudo apt-get update -qq
          for cmd in "${MISSING_CMDS[@]}"; do
            sudo apt-get install -y $cmd
          done
        fi
        
        # Verify all commands are now available
        for cmd in git jq; do
          if ! command -v $cmd &> /dev/null; then
            echo "::error::Required command '$cmd' not found after installation attempt."
            exit 1
          fi
        done
        
        echo "✓ All prerequisites met"
        echo "::endgroup::"
    
    - name: Validate and parse modules JSON
      id: parse
      shell: bash
      env:
        MODULES_JSON: ${{ inputs.modules }}
        SKIP_DEPS_CHECK: ${{ inputs.skip-dependencies-check }}
      run: |
        echo "::group::Validating modules configuration"
        
        # Validate JSON syntax
        if ! echo "$MODULES_JSON" | jq empty 2>/dev/null; then
          echo "::error::Invalid JSON in modules input"
          exit 1
        fi
        
        # Validate JSON is an array
        if [ "$(echo "$MODULES_JSON" | jq 'type')" != '"array"' ]; then
          echo "::error::Modules input must be a JSON array"
          exit 1
        fi
        
        # Check if array is empty
        MODULE_COUNT=$(echo "$MODULES_JSON" | jq 'length')
        if [ "$MODULE_COUNT" -eq 0 ]; then
          echo "::error::Modules array is empty. Please specify at least one module."
          exit 1
        fi
        
        echo "Found $MODULE_COUNT module(s) to install"
        
        # Validate each module has required fields
        INVALID_MODULES=$(echo "$MODULES_JSON" | jq -r '
          to_entries[] | 
          select(.value.name == null or .value.name == "" or .value.repo == null or .value.repo == "") | 
          .key
        ')
        
        if [ -n "$INVALID_MODULES" ]; then
          echo "::error::Modules at indices $INVALID_MODULES are missing required fields 'name' or 'repo'"
          exit 1
        fi
        
        # Extract all module names
        ALL_MODULES=$(echo "$MODULES_JSON" | jq -r '.[].name' | tr '\n' ' ')
        echo "Modules to install: $ALL_MODULES"
        
        # Validate dependencies exist (if not skipped)
        if [ "$SKIP_DEPS_CHECK" != "true" ]; then
          MISSING_DEPS=$(echo "$MODULES_JSON" | jq -r --arg all_modules "$ALL_MODULES" '
            .[] | 
            select(.dependencies != null) | 
            .dependencies[] as $dep | 
            select(($all_modules | contains($dep)) | not) | 
            $dep
          ' | sort -u)
          
          if [ -n "$MISSING_DEPS" ]; then
            echo "::error::The following dependencies are referenced but not defined: $MISSING_DEPS"
            exit 1
          fi
        fi
        
        echo "✓ Modules configuration is valid"
        echo "::endgroup::"
    
    - name: Order modules by dependencies
      id: order
      shell: bash
      env:
        MODULES_JSON: ${{ inputs.modules }}
        SKIP_DEPS_CHECK: ${{ inputs.skip-dependencies-check }}
      run: |
        echo "::group::Calculating installation order"
        
        # Create temporary files for topological sort
        TEMP_DIR=$(mktemp -d)
        EDGES_FILE="$TEMP_DIR/edges"
        NODES_FILE="$TEMP_DIR/nodes"
        
        # Extract all module names
        echo "$MODULES_JSON" | jq -r '.[].name' > "$NODES_FILE"
        
        # Create dependency edges (dependent -> dependency)
        # For each module with dependencies, create "module dep" pairs
        echo "$MODULES_JSON" | jq -r '
          .[] | 
          select(.dependencies != null and (.dependencies | length) > 0) | 
          . as $item | 
          .dependencies[] | 
          ($item.name + " " + .)
        ' > "$EDGES_FILE"
        
        # Perform topological sort
        if [ "$SKIP_DEPS_CHECK" != "true" ] && [ -s "$EDGES_FILE" ]; then
          # Check for circular dependencies
          if ! tsort "$EDGES_FILE" &>/dev/null; then
            echo "::error::Circular dependency detected. Cannot determine installation order."
            cat "$EDGES_FILE"
            rm -rf "$TEMP_DIR"
            exit 1
          fi
          
          # Get sorted order (reverse tsort output since it gives reverse topological order)
          INSTALL_ORDER=$(cat "$NODES_FILE" "$EDGES_FILE" | tsort | tac | tr '\n' ' ')
        else
          # No dependencies or skip check - install in order given
          INSTALL_ORDER=$(cat "$NODES_FILE" | tr '\n' ' ')
        fi
        
        # Clean up
        rm -rf "$TEMP_DIR"
        
        echo "Installation order: $INSTALL_ORDER"
        echo "install_order=$INSTALL_ORDER" >> $GITHUB_OUTPUT
        
        echo "✓ Installation order determined"
        echo "::endgroup::"
    
    - name: Clone module repositories
      id: clone
      shell: bash
      env:
        MODULES_JSON: ${{ inputs.modules }}
        INSTALL_PATH: ${{ inputs.install-path }}
        INSTALL_ORDER: ${{ steps.order.outputs.install_order }}
      run: |
        echo "::group::Cloning module repositories"
        
        # Create base install directory
        mkdir -p "$INSTALL_PATH"
        
        # Clone each module in order
        for MODULE_NAME in $INSTALL_ORDER; do
          echo ""
          echo "=== Cloning module: $MODULE_NAME ==="
          
          # Extract module info from JSON
          MODULE_INFO=$(echo "$MODULES_JSON" | jq -r --arg name "$MODULE_NAME" '
            .[] | select(.name == $name)
          ')
          
          REPO_URL=$(echo "$MODULE_INFO" | jq -r '.repo')
          BRANCH=$(echo "$MODULE_INFO" | jq -r '.branch // empty')
          MODULE_PATH="$INSTALL_PATH/$MODULE_NAME"
          
          echo "Repository: $REPO_URL"
          if [ -n "$BRANCH" ]; then
            echo "Branch: $BRANCH"
          else
            echo "Branch: (repository default)"
          fi
          echo "Path: $MODULE_PATH"
          
          # Clone the repository
          if [ -d "$MODULE_PATH" ]; then
            echo "::warning::Directory $MODULE_PATH already exists, pulling latest changes..."
            cd "$MODULE_PATH"
            if [ -n "$BRANCH" ]; then
              git pull origin "$BRANCH" || echo "::warning::Pull failed, continuing with existing code"
            else
              git pull || echo "::warning::Pull failed, continuing with existing code"
            fi
            cd - > /dev/null
          else
            if [ -n "$BRANCH" ]; then
              if git clone --branch "$BRANCH" --depth 1 "$REPO_URL" "$MODULE_PATH"; then
                echo "✓ Cloned $MODULE_NAME successfully"
              else
                echo "::error::Failed to clone $MODULE_NAME from $REPO_URL (branch: $BRANCH)"
                exit 1
              fi
            else
              if git clone --depth 1 "$REPO_URL" "$MODULE_PATH"; then
                echo "✓ Cloned $MODULE_NAME successfully"
              else
                echo "::error::Failed to clone $MODULE_NAME from $REPO_URL"
                exit 1
              fi
            fi
          fi
        done
        
        echo ""
        echo "✓ All modules cloned successfully"
        echo "::endgroup::"
    
    - name: Install module dependencies
      id: install
      shell: bash
      env:
        INSTALL_PATH: ${{ inputs.install-path }}
        INSTALL_ORDER: ${{ steps.order.outputs.install_order }}
      run: |
        echo "::group::Installing module dependencies"
        
        INSTALLED_MODULES=()
        
        for MODULE_NAME in $INSTALL_ORDER; do
          MODULE_PATH="$INSTALL_PATH/$MODULE_NAME"
          
          echo ""
          echo "=== Installing dependencies for: $MODULE_NAME ==="
          echo "Path: $MODULE_PATH"
          
          if [ ! -d "$MODULE_PATH" ]; then
            echo "::error::Module directory not found: $MODULE_PATH"
            exit 1
          fi
          
          cd "$MODULE_PATH"
          
          # Detect and install PHP dependencies
          if [ -f "composer.json" ]; then
            echo "Found composer.json - installing PHP dependencies..."
            
            # Check if composer is available
            if ! command -v composer &> /dev/null; then
              echo "::error::composer not found. Please ensure PHP and Composer are installed (use action-server-install with install-php: true)"
              exit 1
            fi
            
            # Install with composer
            if composer install --no-dev --optimize-autoloader --no-interaction; then
              echo "✓ Composer dependencies installed"
            else
              echo "::error::Failed to install composer dependencies for $MODULE_NAME"
              exit 1
            fi
          else
            echo "No composer.json found, skipping PHP dependencies"
          fi
          
          # Detect and install Node dependencies
          if [ -f "package.json" ]; then
            echo "Found package.json - installing Node dependencies..."
            
            # Check if npm is available
            if ! command -v npm &> /dev/null; then
              echo "::error::npm not found. Please ensure Node.js is installed (use action-server-install with install-node: true)"
              exit 1
            fi
            
            # Use npm ci if lockfile exists, otherwise npm install
            if [ -f "package-lock.json" ]; then
              echo "Using npm ci (lockfile found)..."
              if npm ci --production; then
                echo "✓ npm dependencies installed (with lockfile)"
              else
                echo "::warning::npm ci failed, trying npm install..."
                if npm install --production; then
                  echo "✓ npm dependencies installed"
                else
                  echo "::error::Failed to install npm dependencies for $MODULE_NAME"
                  exit 1
                fi
              fi
            else
              echo "Using npm install (no lockfile)..."
              if npm install --production; then
                echo "✓ npm dependencies installed"
              else
                echo "::error::Failed to install npm dependencies for $MODULE_NAME"
                exit 1
              fi
            fi
          else
            echo "No package.json found, skipping Node dependencies"
          fi
          
          # Return to previous directory
          cd - > /dev/null
          
          INSTALLED_MODULES+=("$MODULE_NAME")
          echo "✓ $MODULE_NAME installation complete"
        done
        
        # Set outputs
        INSTALLED_LIST=$(IFS=,; echo "${INSTALLED_MODULES[*]}")
        echo "installed_modules=$INSTALLED_LIST" >> $GITHUB_OUTPUT
        echo "install_path=$INSTALL_PATH" >> $GITHUB_OUTPUT
        echo "status=success" >> $GITHUB_OUTPUT
        
        echo ""
        echo "::notice::✓ Successfully installed ${#INSTALLED_MODULES[@]} module(s): $INSTALLED_LIST"
        echo "::endgroup::"
    
    - name: Verify installations
      shell: bash
      env:
        INSTALL_PATH: ${{ inputs.install-path }}
        INSTALL_ORDER: ${{ steps.order.outputs.install_order }}
      run: |
        echo "::group::Verifying module installations"
        
        for MODULE_NAME in $INSTALL_ORDER; do
          MODULE_PATH="$INSTALL_PATH/$MODULE_NAME"
          
          echo ""
          echo "Verifying: $MODULE_NAME"
          
          # Check module directory exists
          if [ ! -d "$MODULE_PATH" ]; then
            echo "::error::Module directory not found: $MODULE_PATH"
            exit 1
          fi
          
          # Check .git directory exists
          if [ ! -d "$MODULE_PATH/.git" ]; then
            echo "::warning::No .git directory found in $MODULE_NAME"
          fi
          
          # Verify composer installation
          if [ -f "$MODULE_PATH/composer.json" ]; then
            if [ -d "$MODULE_PATH/vendor" ]; then
              echo "  ✓ PHP dependencies installed (vendor/ exists)"
            else
              echo "::error::composer.json exists but vendor/ directory not found in $MODULE_NAME"
              exit 1
            fi
          fi
          
          # Verify npm installation
          if [ -f "$MODULE_PATH/package.json" ]; then
            NODE_DEP_COUNT=$(jq -r '((.dependencies // {}) | length) + ((.optionalDependencies // {}) | length)' "$MODULE_PATH/package.json" 2>/dev/null || echo "0")
            if [ "$NODE_DEP_COUNT" -gt 0 ]; then
              if [ -d "$MODULE_PATH/node_modules" ]; then
                echo "  ✓ Node dependencies installed (node_modules/ exists)"
              else
                echo "::error::package.json has production dependencies but node_modules/ directory not found in $MODULE_NAME"
                exit 1
              fi
            else
              echo "  ✓ Node module has no production dependencies (node_modules/ not required)"
            fi
          fi
          
          echo "  ✓ $MODULE_NAME verified"
        done
        
        echo ""
        echo "✓ All modules verified successfully"
        echo "::endgroup::"