"""FlowDeck — Gitea integration API routes."""
from fastapi import APIRouter, Request, HTTPException
from fastapi.responses import JSONResponse

router = APIRouter(tags=["gitea"], prefix="/api/gitea")


def _require_gitea(request: Request):
    """Return a per-user GiteaClient or raise 401."""
    from app.services.gitea_client import get_user_gitea_client
    client = get_user_gitea_client(request)
    if not client:
        raise HTTPException(status_code=401, detail="Gitea not connected. Go to Settings → Integrations or register with Gitea.")
    return client


# ── Orgs ──
@router.get("/orgs")
async def list_orgs(request: Request):
    """List organizations the user belongs to."""
    gitea = _require_gitea(request)
    try:
        orgs = await gitea.get_user_orgs()
        return {"orgs": orgs}
    except Exception as e:
        return JSONResponse({"error": str(e)}, status_code=502)


# ── Projects (repos) ──
@router.get("/projects")
async def list_projects(request: Request, org: str = ""):
    """List Gitea repos: user repos (org='') or org repos."""
    gitea = _require_gitea(request)
    try:
        if org:
            repos = await gitea.get_org_repos(org)
        else:
            repos = await gitea.get_user_repos()
        return {"projects": repos}
    except Exception as e:
        return JSONResponse({"error": str(e)}, status_code=502)


# ── Repo tree ──
@router.get("/projects/{owner}/{repo}/tree")
async def repo_tree(request: Request, owner: str, repo: str, path: str = ""):
    """Get contents of a repo directory (one level)."""
    gitea = _require_gitea(request)
    try:
        items = await gitea.get_repo_contents(owner, repo, path)
        tree = []
        for item in items:
            tree.append({
                "name": item.get("name"),
                "path": item.get("path"),
                "type": "folder" if item.get("type") == "dir" else "file",
                "size": item.get("size", 0),
                "sha": item.get("sha"),
            })
        return {"tree": tree}
    except Exception as e:
        return JSONResponse({"error": str(e)}, status_code=502)


# ── File content ──
@router.get("/projects/{owner}/{repo}/file")
async def get_file(request: Request, owner: str, repo: str, path: str):
    """Get file content (decoded)."""
    gitea = _require_gitea(request)
    try:
        content = await gitea.get_file_content(owner, repo, path)
        return {"content": content, "path": path}
    except Exception as e:
        return JSONResponse({"error": str(e)}, status_code=502)


# ── Save file (create or update) ──
@router.put("/projects/{owner}/{repo}/file")
async def save_file(request: Request, owner: str, repo: str):
    """Create or update a file in the repo."""
    import json
    gitea = _require_gitea(request)
    try:
        body = await request.json()
    except Exception:
        body = {}
    path = body.get("path", "").strip("/")
    content = body.get("content", "")
    message = body.get("message", "Update via FlowDeck")
    sha = body.get("sha")
    if not path:
        return JSONResponse({"error": "Path required"}, status_code=400)
    try:
        result = await gitea.create_or_update_file(owner, repo, path, content, message, sha)
        return {"status": "ok", "commit": result.get("commit", {})}
    except Exception as e:
        return JSONResponse({"error": str(e)}, status_code=502)


# ── Delete file ──
@router.delete("/projects/{owner}/{repo}/file")
async def delete_file(request: Request, owner: str, repo: str):
    """Delete a file from the repo."""
    import json
    gitea = _require_gitea(request)
    path = request.query_params.get("path", "")
    sha = request.query_params.get("sha", "")
    message = request.query_params.get("message", "Delete via FlowDeck")
    if not path or not sha:
        return JSONResponse({"error": "Path and SHA required"}, status_code=400)
    try:
        await gitea.delete_file(owner, repo, path, sha, message)
        return {"status": "ok"}
    except Exception as e:
        return JSONResponse({"error": str(e)}, status_code=502)


# ── Labels ──
@router.get("/projects/{owner}/{repo}/labels")
async def get_labels(request: Request, owner: str, repo: str):
    """Get labels for a repo (mapped to tags)."""
    gitea = _require_gitea(request)
    try:
        labels = await gitea.get_labels(owner, repo)
        return {"labels": [
            {"id": l["id"], "name": l["name"], "color": l.get("color", "#787774")}
            for l in labels
        ]}
    except Exception as e:
        return JSONResponse({"error": str(e)}, status_code=502)


# ── Account linking ──

@router.get("/status")
async def gitea_status(request: Request):
    """Check if the current user has Gitea linked."""
    from app.services.gitea_client import get_user_gitea_client
    client = get_user_gitea_client(request)
    return {"linked": client is not None}


@router.delete("/disconnect")
async def disconnect_gitea(request: Request):
    """Remove all Gitea OAuth tokens for the current user."""
    from app.auth.session import SessionManager
    from app.db import get_conn
    user = SessionManager.decode_session(request.cookies.get("flowdeck_session", ""))
    if not user:
        return JSONResponse({"error": "Not authenticated"}, status_code=401)
    with get_conn() as conn:
        conn.execute("DELETE FROM user_oauth_tokens WHERE user_id=? AND provider='gitea'", (user["id"],))
        conn.commit()
    return {"status": "ok"}