#!/usr/bin/env pwsh

<#
.SYNOPSIS
    Sets up the rebasing challenge environment.

.DESCRIPTION
    Creates a Git repository with diverged branches to practice rebasing.
    The feature branch needs to be rebased onto main.
#>

# 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 file and commit
$readme = @"
# My Project

A sample project for learning Git rebasing.
"@

Set-Content -Path "README.md" -Value $readme
git add README.md
git commit -m "Initial commit" | Out-Null

# Create and switch to feature branch
git checkout -b feature | Out-Null

# Add commits on feature branch
$feature1 = @"
# My Project

A sample project for learning Git rebasing.

## Features

- Feature A: User authentication
"@

Set-Content -Path "README.md" -Value $feature1
git add README.md
git commit -m "Add feature A" | Out-Null

$feature2 = @"
# My Project

A sample project for learning Git rebasing.

## Features

- Feature A: User authentication
- Feature B: Data validation
"@

Set-Content -Path "README.md" -Value $feature2
git add README.md
git commit -m "Add feature B" | Out-Null

# Switch back to main and add commits (simulating other work happening on main)
git checkout main | Out-Null

$main1 = @"
# My Project

A sample project for learning Git rebasing.

## Installation

Run \`npm install\` to install dependencies.
"@

Set-Content -Path "README.md" -Value $main1
git add README.md
git commit -m "Add installation instructions" | Out-Null

$main2 = @"
# My Project

A sample project for learning Git rebasing.

## Installation

Run \`npm install\` to install dependencies.

## Configuration

Copy \`config.example.json\` to \`config.json\` and update settings.
"@

Set-Content -Path "README.md" -Value $main2
git add README.md
git commit -m "Add configuration instructions" | Out-Null

# Switch back to feature branch
git checkout feature | 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 'feature' branch." -ForegroundColor Cyan
Write-Host "The 'main' branch has new commits that aren't in your feature branch." -ForegroundColor Cyan
Write-Host "`nYour task:" -ForegroundColor Yellow
Write-Host "1. Navigate to the challenge directory: cd challenge" -ForegroundColor White
Write-Host "2. View the commit history: git log --oneline --graph --all" -ForegroundColor White
Write-Host "3. Rebase the 'feature' branch onto 'main'" -ForegroundColor White
Write-Host "4. View the history again to see the linear result" -ForegroundColor White
Write-Host "`nRun '../verify.ps1' from the challenge directory to check your solution.`n" -ForegroundColor Cyan