name: Validate Solidity Artifacts
description: Checks whether Slither reports and UML diagrams were generated for all necessary files. If not, a warning is printed in job summary, but the job is not marked as failed.
inputs:
  slither_reports_path:
    description: Path to the Slither reports directory (without trailing slash)
    required: true
  uml_diagrams_path:
    description: Path to the UML diagrams directory  (without trailing slash)
    required: true
  validate_slither_reports:
    description: Whether Slither reports should be validated
    required: true
  validate_uml_diagrams:
    description: Whether UML diagrams should be validated
    required: true
  sol_files:
    description: Comma-separated (CSV) or space-separated (shell) list of Solidity files to check
    required: true

runs:
  using: composite
  steps:
    - name: Transform input array
      id: transform_input_array
      shell: bash
      run: |
        is_csv_format() {
          local input="$1"
          if [[ "$input" =~ "," ]]; then
            return 0
          else
            return 1
          fi
        }
        
        is_space_separated_string() {
          local input="$1"
          if [[ "$input" =~ ^[^[:space:]]+([[:space:]][^[:space:]]+)*$ ]]; then
            return 0
          else
            return 1
          fi
        }
        
        array="${{ inputs.sol_files }}"
        
        if is_csv_format "$array"; then
          echo "::debug::CSV format detected, nothing to do"
          echo "sol_files=$array" >> $GITHUB_OUTPUT
          exit 0
        fi
        
        if is_space_separated_string "$array"; then
          echo "::debug::Space-separated format detected, converting to CSV"
          csv_array="${array// /,}"
          echo "sol_files=$csv_array" >> $GITHUB_OUTPUT
          exit 0
        fi
        
        echo "::error::Invalid input format for sol_files. Please provide a comma-separated (CSV) or space-separated (shell) list of Solidity files"
        exit 1

    - name: Validate UML diagrams
      if: ${{ inputs.validate_uml_diagrams == 'true' }}
      shell: bash
      run: |
        echo "Validating UML diagrams"        
        IFS=',' read -r -a modified_files <<< "${{ steps.transform_input_array.outputs.sol_files }}"
        missing_svgs=()        
        for file in "${modified_files[@]}"; do
          svg_file="$(basename "${file%.sol}").svg"
          if [ ! -f "${{ inputs.uml_diagrams_path }}/$svg_file" ]; then
            echo "Error: UML diagram for $file not found"
            missing_svgs+=("$file")
          fi
        done
        
        if [ ${#missing_svgs[@]} -gt 0 ]; then
            echo "Error: Missing UML diagrams for files: ${missing_svgs[@]}"
            echo "# Warning!" >> $GITHUB_STEP_SUMMARY
            echo "## Reason: Missing UML diagrams for files:" >> $GITHUB_STEP_SUMMARY
            for file in "${missing_svgs[@]}"; do
              echo " $file" >> $GITHUB_STEP_SUMMARY
            done
            echo "## Action required: Please try to generate artifacts for them locally or using a different tool" >> $GITHUB_STEP_SUMMARY
        else 
            echo "All UML diagrams generated successfully"
        fi

    - name: Validate Slither reports
      if: ${{ inputs.validate_slither_reports == 'true' }}
      shell: bash
      run: |
        echo "Validating Slither reports"
        IFS=',' read -r -a modified_files <<< "${{ steps.transform_input_array.outputs.sol_files }}"
        missing_reports=()
        for file in "${modified_files[@]}"; do
          report_file="$(basename "${file%.sol}")-slither-report.md"            
          if [ ! -f "${{ inputs.slither_reports_path }}/$report_file" ]; then
            echo "Error: Slither report for $file not found"
            missing_reports+=("$file")
          fi
        done
        
        if [ ${#missing_reports[@]} -gt 0 ]; then
            echo "Error: Missing Slither reports for files: ${missing_reports[@]}"
            echo "# Warning!" >> $GITHUB_STEP_SUMMARY
            echo "## Reason: Missing Slither reports for files:" >> $GITHUB_STEP_SUMMARY
            for file in "${missing_reports[@]}"; do
              echo " $file" >> $GITHUB_STEP_SUMMARY
            done
            echo "## Action required: Please try to generate artifacts for them locally" >> $GITHUB_STEP_SUMMARY
        else 
           echo "All Slither reports generated successfully"
        fi