#!/usr/bin/env pwsh

<#
.SYNOPSIS
    Sets up the merge conflicts challenge environment.

.DESCRIPTION
    Creates a Git repository with a merge conflict scenario involving
    a configuration file that has been modified differently on two branches.
#>

# Remove existing challenge directory if present
if (Test-Path "challenge") {
    Write-Host "Removing existing challenge directory..." -ForegroundColor Yellow
    Remove-Item -Path "challenge" -Recurse -Force
}

# Create challenge directory
Write-Host "Creating challenge environment..." -ForegroundColor Cyan
New-Item -ItemType Directory -Path "challenge" | Out-Null
Set-Location "challenge"

# Initialize git repository
git init | Out-Null
git config user.name "Workshop User" | Out-Null
git config user.email "user@workshop.local" | Out-Null

# Create initial config.json file
$initialConfig = @"
{
  "app": {
    "name": "MyApp",
    "version": "1.0.0",
    "port": 3000
  }
}
"@

Set-Content -Path "config.json" -Value $initialConfig
git add config.json
git commit -m "Initial configuration" | Out-Null

# Create feature branch
git branch update-config | Out-Null

# On main branch: Add timeout setting
$mainConfig = @"
{
  "app": {
    "name": "MyApp",
    "version": "1.0.0",
    "port": 3000,
    "timeout": 5000
  }
}
"@

Set-Content -Path "config.json" -Value $mainConfig
git add config.json
git commit -m "Add timeout configuration" | Out-Null

# Switch to feature branch: Add debug setting (conflicting change)
git checkout update-config | Out-Null

$featureConfig = @"
{
  "app": {
    "name": "MyApp",
    "version": "1.0.0",
    "port": 3000,
    "debug": true
  }
}
"@

Set-Content -Path "config.json" -Value $featureConfig
git add config.json
git commit -m "Add debug mode configuration" | Out-Null

# Switch back to main branch
git checkout main | Out-Null

# Return to module directory
Set-Location ..

Write-Host "`n========================================" -ForegroundColor Green
Write-Host "Challenge environment created!" -ForegroundColor Green
Write-Host "========================================" -ForegroundColor Green
Write-Host "`nYou are now on the 'main' branch." -ForegroundColor Cyan
Write-Host "There is a branch called 'update-config' with conflicting changes." -ForegroundColor Cyan
Write-Host "`nYour task:" -ForegroundColor Yellow
Write-Host "1. Navigate to the challenge directory: cd challenge" -ForegroundColor White
Write-Host "2. Try to merge the 'update-config' branch into 'main'" -ForegroundColor White
Write-Host "3. Resolve the merge conflict in config.json" -ForegroundColor White
Write-Host "4. Keep BOTH the timeout setting AND the debug setting" -ForegroundColor White
Write-Host "5. Complete the merge" -ForegroundColor White
Write-Host "`nRun '../verify.ps1' from the challenge directory to check your solution.`n" -ForegroundColor Cyan