import httpx
from pathlib import Path
from fastapi import APIRouter, HTTPException
from pydantic import BaseModel

router = APIRouter()


class SubscribeRequest(BaseModel):
    """Schema für Subscription Request"""
    repo_url: str
    target_name: str = "imported-repo"
    token_provided: str | None = None


@router.get("/projects")   #✅ NEU: Listet abonierte Projekte!
async def list_projects():
    """Listet lokale (abonierte) Projekte an."""
    from .main import PROJECTS_DIR, get_token, ACCESS_TOKEN

    projects = []
    if PROJECTS_DIR.exists() and str(PROJECTS_DIR).strip():
        for project_dir in sorted(PROJECTS_DIR.iterdir()):
            if project_dir.is_dir() and not project_dir.name.startswith('.'):
                # Prüfe ob es ein Git-Repo ist
                has_git = (project_dir / '.git').exists()

                # Prüfe auf unentdeckte Changes
                changes_marker = project_dir /'.gitea-changes.marker'
                has_changes = changes_marker.exists()

                projects.append({
                    "name": project_dir.name,
                    "path": str(project_dir),
                    "subscribed": True,
                    "has_git": bool(has_git),
                    "has_undiscovered_changes": has_changes
                })

    return {"projects": projects}


@router.get("/repos")   #✅ VORHANDEN: Listet Gitea-Repos!
async def list_repos():
    """Listet Repositories von Gitea auf."""
    from .main import GITEE_URL, ACCESS_TOKEN

    token = ACCESS_TOKEN or ""  #✅ Direkter Zugriff!

    if not token:
        return {"error": "Kein Token vorhanden!", "hint": "Setze ACCESS_TOKEN Umgebungsvariable"}

    headers = {"Authorization": f"token {token}"}

    async with httpx.AsyncClient() as client:
        resp = await client.get(f"{GITEE_URL}/api/v1/user/repos", headers=headers)
        return resp.json()


@router.post("/subscribe")   #✅ VORHANDEN: Clont Repo!
async def subscribe_repo(req: SubscribeRequest):
    """Abonniert und klont ein Repository."""
    from .main import ACCESS_TOKEN

    effective_token = req.token_provided or ACCESS_TOKEN or ""

    if not effective_token:
        raise HTTPException(status_code=401, detail="Kein TOKEN vorhanden! Bitte setze ACCESS_TOKEN Umgebungsvariable.")

    target_dir = Path("/projects") / req.target_name

    result = clone_repo(req.repo_url, target_dir, token=effective_token)

    if not result["success"]:
        return {"error": result.get("error"), "success": False}

    # Marker für Changes erstellen
    (target_dir / ".gitea-changes.marker").touch()

    generate_changelog(target_dir)

    return {
        "message": f"✅ {req.target_name} geklont!", 
        "path": str(target_dir), 
        "success": True,
        "token_used": bool(effective_token and not req.token_provided)
    }


# Importiere hier damit die Funktionen verfügbar sind!
from .git_manager import clone_repo
from .changelog_gen import generate_changelog