#!/usr/bin/env python3
"""
Diagnostic script to explore the project structure and identify build requirements.
"""

import os
import subprocess
import sys

def run_command(cmd, description=""):
    """Run a command and return its output."""
    print(f"\n=== {description} ===")
    try:
        result = subprocess.run(cmd, shell=True, capture_output=True, text=True, cwd=os.getcwd())
        print(f"Command: {cmd}")
        print(f"Return code: {result.returncode}")
        if result.stdout:
            print(f"STDOUT:\n{result.stdout}")
        if result.stderr:
            print(f"STDERR:\n{result.stderr}")
        return result
    except Exception as e:
        print(f"Error running command: {e}")
        return None

def check_git_status():
    """Check git repository status."""
    print("🔍 Checking git repository...")
    
    # Check if .git exists
    if os.path.exists('.git'):
        print("✅ .git directory found")
    else:
        print("❌ No .git directory found")
        return
        
    # Check git status
    run_command("git status", "Git Status")
    run_command("git branch", "Current Branch")
    run_command("git log --oneline -5", "Recent Commits")
    run_command("git remote -v", "Git Remotes")

def find_project_files():
    """Search for common project files."""
    print("\n🔍 Searching for project files...")
    
    # Common project files to look for
    project_files = [
        "package.json",      # Node.js
        "requirements.txt",  # Python
        "setup.py",         # Python
        "pyproject.toml",   # Python
        "pom.xml",          # Java Maven
        "build.gradle",     # Java Gradle
        "go.mod",           # Go
        "Cargo.toml",       # Rust
        "composer.json",    # PHP
        "Makefile",         # Make
        "Dockerfile",       # Docker
        "*.sln",            # .NET
        "*.csproj",         # .NET
    ]
    
    found_files = []
    
    for root, dirs, files in os.walk('.'):
        # Skip .git directory
        if '.git' in dirs:
            dirs.remove('.git')
            
        for file in files:
            for pattern in project_files:
                if file == pattern or (pattern.startswith('*') and file.endswith(pattern[1:])):
                    found_files.append(os.path.join(root, file))
    
    if found_files:
        print("📁 Project files found:")
        for f in found_files:
            print(f"  • {f}")
    else:
        print("📭 No common project files found")
    
    return found_files

def check_build_tools():
    """Check for available build tools."""
    print("\n🔧 Checking available build tools...")
    
    tools = {
        'node': ['node --version', 'npm --version'],
        'python': ['python3 --version', 'pip3 --version'],
        'java': ['java -version', 'javac -version'],
        'maven': ['mvn --version'],
        'gradle': ['gradle --version'],
        'go': ['go version'],
        'rust': ['cargo --version'],
        'make': ['make --version'],
        'docker': ['docker --version'],
        'git': ['git --version']
    }
    
    available_tools = {}
    
    for tool, commands in tools.items():
        print(f"\nChecking {tool}:")
        for cmd in commands:
            try:
                result = subprocess.run(cmd, shell=True, capture_output=True, text=True)
                if result.returncode == 0:
                    version_line = result.stdout.strip().split('\n')[0]
                    print(f"  ✅ {cmd.split()[0]}: {version_line}")
                    available_tools[tool] = True
                    break
                else:
                    print(f"  ❌ {cmd}: not available")
            except Exception as e:
                print(f"  ❌ {cmd}: error - {e}")
    
    return available_tools

def main():
    """Main diagnostic function."""
    print("🚀 Project Diagnostic Tool")
    print("=" * 50)
    
    # Check current directory
    cwd = os.getcwd()
    print(f"Current working directory: {cwd}")
    
    try:
        contents = os.listdir('.')
        print(f"Directory contents ({len(contents)} items):")
        for item in sorted(contents):
            if os.path.isdir(item):
                print(f"  📁 {item}/")
            else:
                size = os.path.getsize(item)
                print(f"  📄 {item} ({size} bytes)")
    except Exception as e:
        print(f"Error listing directory: {e}")
    
    # Run diagnostics
    check_git_status()
    project_files = find_project_files()
    available_tools = check_build_tools()
    
    # Summary
    print("\n" + "=" * 50)
    print("📊 DIAGNOSTIC SUMMARY")
    print("=" * 50)
    
    print(f"Project files found: {len(project_files)}")
    print(f"Available build tools: {len(available_tools)}")
    
    if project_files:
        print("\n🎯 Recommended next steps based on project files:")
        for file in project_files:
            if file.endswith('package.json'):
                print("  • npm install && npm run build && npm test")
            elif file.endswith('requirements.txt') or file.endswith('setup.py') or file.endswith('pyproject.toml'):
                print("  • pip install -r requirements.txt && python -m pytest")
            elif file.endswith('pom.xml'):
                print("  • mvn clean install")
            elif file.endswith('build.gradle'):
                print("  • gradle build")
            elif file.endswith('go.mod'):
                print("  • go mod download && go build && go test")
            elif file.endswith('Cargo.toml'):
                print("  • cargo build && cargo test")
            elif file.endswith('Makefile'):
                print("  • make build && make test")
    else:
        print("\n⚠️  No common project files detected.")
        print("This might be a custom project or the files are in a different location.")

if __name__ == "__main__":
    main()