---
name: "Test Coverage Analysis"
description: "Analyzes test coverage and generates coverage report"

inputs:
  minimum-tests:
    description: "Minimum number of tests required"
    required: false
    default: "55"

outputs:
  total-tests:
    description: "Total number of tests found"
    value: ${{ steps.coverage.outputs.total-tests }}
  passing-tests:
    description: "Number of passing tests"
    value: ${{ steps.coverage.outputs.passing-tests }}
  coverage-percent:
    description: "Test coverage percentage"
    value: ${{ steps.coverage.outputs.coverage-percent }}

runs:
  using: "composite"
  steps:
    - name: Test Coverage Analysis
      id: coverage
      run: |
        echo "## Test Coverage Report" > coverage_report.md
        echo "" >> coverage_report.md

        # Run tests and capture output
        TEST_OUTPUT=$(npm test 2>&1)
        TOTAL_TESTS=$(echo "$TEST_OUTPUT" | grep -E "^\s+[0-9]+\." | wc -l)
        PASSING_TESTS=$(echo "$TEST_OUTPUT" | grep -E "^\s+[0-9]+\. ✓" | wc -l)
        FAILING_TESTS=$(echo "$TEST_OUTPUT" | grep -E "^\s+[0-9]+\. ✗" | wc -l)

        echo "- **Total Tests:** $TOTAL_TESTS" >> coverage_report.md
        echo "- **Passing:** $PASSING_TESTS ✅" >> coverage_report.md
        echo "- **Failing:** $FAILING_TESTS ❌" >> coverage_report.md

        if [ $TOTAL_TESTS -gt 0 ]; then
          COVERAGE_PERCENT=$(( (PASSING_TESTS * 100) / TOTAL_TESTS ))
          echo "- **Coverage:** $COVERAGE_PERCENT%" >> coverage_report.md
        else
          COVERAGE_PERCENT=0
        fi

        echo "" >> coverage_report.md
        echo "### Test Files" >> coverage_report.md
        echo "$TEST_OUTPUT" | grep -E "^\s+[a-z_]+:" | sed 's/^/- /' >> coverage_report.md

        cat coverage_report.md

        # Set outputs
        echo "total-tests=$TOTAL_TESTS" >> $GITHUB_OUTPUT
        echo "passing-tests=$PASSING_TESTS" >> $GITHUB_OUTPUT
        echo "coverage-percent=$COVERAGE_PERCENT" >> $GITHUB_OUTPUT

        # Validate test coverage requirements
        if [ $TOTAL_TESTS -lt ${{ inputs.minimum-tests }} ]; then
          echo "❌ Expected at least ${{ inputs.minimum-tests }} tests, found $TOTAL_TESTS"
          exit 1
        fi

        if [ $FAILING_TESTS -gt 0 ]; then
          echo "❌ Found $FAILING_TESTS failing tests"
          exit 1
        fi

        echo "✅ Test coverage is acceptable: $PASSING_TESTS/$TOTAL_TESTS tests passing ($COVERAGE_PERCENT%)"
      shell: bash