#!/usr/bin/env pwsh
<#
.SYNOPSIS
    Verifies the Module 05 challenge solution.

.DESCRIPTION
    This script checks that:
    - The challenge directory exists
    - A Git repository exists
    - investigation.md exists with correct findings about the security issue
#>

Write-Host "`n=== Verifying Module 05 Solution ===" -ForegroundColor Cyan

$allChecksPassed = $true

# Check if challenge directory exists
if (-not (Test-Path "challenge")) {
    Write-Host "[FAIL] Challenge directory not found. Did you run setup.ps1?" -ForegroundColor Red
    exit 1
}

Set-Location "challenge"

# Check if git repository exists
if (-not (Test-Path ".git")) {
    Write-Host "[FAIL] Not a git repository. Did you run setup.ps1?" -ForegroundColor Red
    Set-Location ..
    exit 1
}

# Check if investigation.md exists
if (-not (Test-Path "investigation.md")) {
    Write-Host "[FAIL] investigation.md not found. Did you run setup.ps1?" -ForegroundColor Red
    Write-Host "[HINT] The setup script should have created investigation.md for you" -ForegroundColor Yellow
    $allChecksPassed = $false
} else {
    Write-Host "[PASS] investigation.md exists" -ForegroundColor Green

    # Read the investigation file
    $investigation = Get-Content "investigation.md" -Raw
    $investigationLower = $investigation.ToLower()

    # Check 1: Line number (line 8 contains the hardcoded password)
    if ($investigationLower -match "8") {
        Write-Host "[PASS] Correct line number identified" -ForegroundColor Green
    } else {
        Write-Host "[FAIL] Line number not found or incorrect" -ForegroundColor Red
        Write-Host "[HINT] Look at app.py to find which line contains 'admin123'" -ForegroundColor Yellow
        $allChecksPassed = $false
    }

    # Check 2: Email address (guilty@email.com)
    if ($investigationLower -match "guilty@email\.com") {
        Write-Host "[PASS] Correct email address found using git blame!" -ForegroundColor Green
    } else {
        Write-Host "[FAIL] Developer's email address not found" -ForegroundColor Red
        Write-Host "[HINT] Use 'git blame -e app.py' to see who changed each line with email addresses" -ForegroundColor Yellow
        $allChecksPassed = $false
    }

    # Check 3: Commit message (contains "test" or "debug" or "quick")
    if ($investigationLower -match "test|debug|quick") {
        Write-Host "[PASS] Commit message identified" -ForegroundColor Green
    } else {
        Write-Host "[FAIL] Commit message not found" -ForegroundColor Red
        Write-Host "[HINT] Use 'git show <commit-hash>' to see the commit message" -ForegroundColor Yellow
        $allChecksPassed = $false
    }

    # Check 4: Number of files (1 file - only app.py)
    if ($investigationLower -match "1|one|app\.py") {
        Write-Host "[PASS] Number of files modified identified" -ForegroundColor Green
    } else {
        Write-Host "[FAIL] Number of files modified not found" -ForegroundColor Red
        Write-Host "[HINT] Use 'git show <commit-hash> --stat' to see which files were changed" -ForegroundColor Yellow
        $allChecksPassed = $false
    }

    # Check 5: Some mention of timestamp/date (flexible check)
    # We're just checking they attempted to answer this
    if ($investigationLower -match "202|date|time|\d{4}-\d{2}-\d{2}") {
        Write-Host "[PASS] Timestamp/date documented" -ForegroundColor Green
    } else {
        Write-Host "[FAIL] Timestamp/date not documented" -ForegroundColor Red
        Write-Host "[HINT] The git blame output shows the date and time of each change" -ForegroundColor Yellow
        $allChecksPassed = $false
    }
}

Set-Location ..

# Final summary
if ($allChecksPassed) {
    Write-Host "`n" -NoNewline
    Write-Host "=====================================" -ForegroundColor Green
    Write-Host "   INVESTIGATION COMPLETE!" -ForegroundColor Green
    Write-Host "=====================================" -ForegroundColor Green
    Write-Host "`nExcellent detective work! You've successfully used git blame to track down the security issue." -ForegroundColor Cyan
    Write-Host "`nYou now know how to:" -ForegroundColor Cyan
    Write-Host "  - Use git blame to find who modified each line" -ForegroundColor White
    Write-Host "  - Read and interpret git blame output" -ForegroundColor White
    Write-Host "  - Use git blame with -e flag to show email addresses" -ForegroundColor White
    Write-Host "  - Find commit details after identifying changes with blame" -ForegroundColor White
    Write-Host "  - Conduct code archaeology to understand code history" -ForegroundColor White
    Write-Host "`nRemember: git blame is for understanding, not blaming!" -ForegroundColor Yellow
    Write-Host "`nReady for the next module!" -ForegroundColor Green
    Write-Host ""
} else {
    Write-Host "`n[SUMMARY] Some checks failed. Review the hints above and try again." -ForegroundColor Red
    Write-Host "[INFO] You can run this verification script as many times as needed." -ForegroundColor Yellow
    Write-Host ""
    exit 1
}