#!/usr/bin/env pwsh

<#
.SYNOPSIS
    Sets up the interactive rebase challenge environment.

.DESCRIPTION
    Creates a Git repository with messy commit history that needs to be
    cleaned up using reset and recommit techniques.
#>

# 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 commit
$readme = @"
# User Management System

A simple user management application.
"@

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

# Create messy commits that should be squashed

# Commit 1: WIP user profile
$userProfile = @"
class UserProfile {
  constructor(name, email) {
    this.name = name;
    this.email = email;
  }
}
"@

Set-Content -Path "user-profile.js" -Value $userProfile
git add user-profile.js
git commit -m "WIP: user profile" | Out-Null

# Commit 2: Add validation (typo in message)
$userProfileWithValidation = @"
class UserProfile {
  constructor(name, email) {
    this.name = name;
    this.email = email;
  }

  validate() {
    if (!this.name || !this.email) {
      throw new Error('Name and email are required');
    }
    return true;
  }
}
"@

Set-Content -Path "user-profile.js" -Value $userProfileWithValidation
git add user-profile.js
git commit -m "add validaton" | Out-Null  # Intentional typo

# Commit 3: Fix validation
$userProfileFixed = @"
class UserProfile {
  constructor(name, email) {
    this.name = name;
    this.email = email;
  }

  validate() {
    if (!this.name || !this.email) {
      throw new Error('Name and email are required');
    }
    if (!this.email.includes('@')) {
      throw new Error('Invalid email format');
    }
    return true;
  }
}
"@

Set-Content -Path "user-profile.js" -Value $userProfileFixed
git add user-profile.js
git commit -m "fix validation bug" | Out-Null

# Commit 4: Add tests (another WIP commit)
$tests = @"
const assert = require('assert');
const UserProfile = require('./user-profile');

describe('UserProfile', () => {
  it('should validate correct user data', () => {
    const user = new UserProfile('John', 'john@example.com');
    assert.strictEqual(user.validate(), true);
  });

  it('should reject missing name', () => {
    const user = new UserProfile('', 'john@example.com');
    assert.throws(() => user.validate());
  });

  it('should reject invalid email', () => {
    const user = new UserProfile('John', 'invalid-email');
    assert.throws(() => user.validate());
  });
});
"@

Set-Content -Path "user-profile.test.js" -Value $tests
git add user-profile.test.js
git commit -m "WIP tests" | 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 have a repository with messy commit history:" -ForegroundColor Cyan
Write-Host "- WIP commits" -ForegroundColor Yellow
Write-Host "- Typos in commit messages" -ForegroundColor Yellow
Write-Host "- Multiple commits that should be combined" -ForegroundColor Yellow
Write-Host "`nYour task:" -ForegroundColor Yellow
Write-Host "1. Navigate to the challenge directory: cd challenge" -ForegroundColor White
Write-Host "2. View the messy history: git log --oneline" -ForegroundColor White
Write-Host "3. Use 'git reset --soft HEAD~4' to uncommit the last 4 commits" -ForegroundColor White
Write-Host "4. Create a single clean commit with a descriptive message" -ForegroundColor White
Write-Host "   Example: git commit -m 'Add user profile feature with validation'" -ForegroundColor White
Write-Host "`nRun '../verify.ps1' from the challenge directory to check your solution.`n" -ForegroundColor Cyan