from fastapi import APIRouter, HTTPException, Query
from typing import List, Dict, Any, Optional

from app.services.gitea_client import GiteaClient
from app.services.config_service import ConfigService

router = APIRouter()
gitea_client = GiteaClient()
config_service = ConfigService()

@router.get("/")
async def list_repositories(limit: int = Query(100, description="Maximum number of repositories to return")):
    """
    List all available repositories from Gitea.
    
    If Gitea integration is not configured, returns an empty list.
    """
    repositories = gitea_client.list_repositories(limit)
    
    # Enhance with linked job information
    for repo in repositories:
        # Create a URL from clone_url
        repo_url = repo.get("clone_url")
        if repo_url:
            # Check if repository is linked to a job
            configs = config_service.list_configs()
            for config in configs:
                if config.get("repository") == repo_url:
                    repo["linked_job"] = config.get("job_id")
                    repo["config_name"] = config.get("name")
                    break
    
    return repositories

@router.get("/{repository}")
async def get_repository_info(repository: str):
    """
    Get information about a specific repository.
    
    The repository parameter can be a repository URL or a repository alias.
    If it's a repository URL, we'll get the info directly from Gitea.
    If it's a repository alias, we'll get the info from the configuration and then from Gitea.
    """
    # First check if it's a repository URL
    repo_info = gitea_client.get_repository_info(repository)
    
    if repo_info:
        # Check if repository is linked to a job
        configs = config_service.list_configs()
        for config in configs:
            if config.get("repository") == repository:
                repo_info["linked_job"] = config.get("job_id")
                repo_info["config_name"] = config.get("name")
                repo_info["config"] = config
                break
        
        return repo_info
    else:
        # Check if it's a repository alias in our configs
        config = config_service.get_config_by_repository(repository)
        if config:
            repo_url = config.get("repository")
            repo_info = gitea_client.get_repository_info(repo_url)
            
            if repo_info:
                repo_info["linked_job"] = config.get("job_id")
                repo_info["config_name"] = config.get("name")
                repo_info["config"] = config
                return repo_info
        
        raise HTTPException(status_code=404, detail=f"Repository not found: {repository}")

@router.get("/{repository}/branches")
async def get_repository_branches(repository: str):
    """
    Get branches for a specific repository.
    
    The repository parameter can be a repository URL or a repository alias.
    """
    # If it's a repository alias, get the actual URL
    config = config_service.get_config_by_repository(repository)
    if config:
        repository = config.get("repository")
    
    branches = gitea_client.get_repository_branches(repository)
    if not branches:
        raise HTTPException(status_code=404, detail=f"No branches found for repository: {repository}")
    
    return branches