import asyncio

from quart import Blueprint, jsonify, request

from scribe.auth import get_current_user_id, login_required
from scribe.services import sharing as share_svc
from scribe.services.access import can_admin_project, can_write_note
from scribe.services.notifications import notify_note_shared, notify_project_shared
from scribe.services.sharing import list_shared_with_me

shares_bp = Blueprint("shares", __name__)


# ---------------------------------------------------------------------------
# Project shares
# ---------------------------------------------------------------------------

@shares_bp.route("/api/projects/<int:project_id>/shares", methods=["GET"])
@login_required
async def list_project_shares(project_id: int):
    uid = get_current_user_id()
    if not await can_admin_project(uid, project_id):
        return jsonify({"error": "Forbidden"}), 403
    return jsonify({"shares": await share_svc.list_project_shares(project_id)})


@shares_bp.route("/api/projects/<int:project_id>/shares", methods=["POST"])
@login_required
async def create_project_share(project_id: int):
    uid = get_current_user_id()
    data = await request.get_json()
    share = await share_svc.share_project(
        uid, project_id,
        target_user_id=data.get("user_id"),
        target_group_id=data.get("group_id"),
        permission=data.get("permission", "viewer"),
    )
    if not share:
        return jsonify({"error": "Forbidden or invalid permission"}), 403
    asyncio.create_task(notify_project_shared(
        project_id, share.permission, uid,
        data.get("user_id"), data.get("group_id"),
    ))
    return jsonify(share.to_dict()), 201


@shares_bp.route("/api/projects/<int:project_id>/shares/<int:share_id>", methods=["PATCH"])
@login_required
async def update_project_share(project_id: int, share_id: int):
    uid = get_current_user_id()
    data = await request.get_json()
    share = await share_svc.update_project_share(uid, share_id, data.get("permission", ""))
    if not share:
        return jsonify({"error": "Not found or forbidden"}), 404
    return jsonify(share.to_dict())


@shares_bp.route("/api/projects/<int:project_id>/shares/<int:share_id>", methods=["DELETE"])
@login_required
async def remove_project_share(project_id: int, share_id: int):
    uid = get_current_user_id()
    if not await share_svc.remove_project_share(uid, share_id):
        return jsonify({"error": "Not found or forbidden"}), 404
    return jsonify({"status": "ok"})


# ---------------------------------------------------------------------------
# Note / task shares
# ---------------------------------------------------------------------------

@shares_bp.route("/api/notes/<int:note_id>/shares", methods=["GET"])
@login_required
async def list_note_shares(note_id: int):
    uid = get_current_user_id()
    if not await can_write_note(uid, note_id):
        return jsonify({"error": "Forbidden"}), 403
    return jsonify({"shares": await share_svc.list_note_shares(note_id)})


@shares_bp.route("/api/notes/<int:note_id>/shares", methods=["POST"])
@login_required
async def create_note_share(note_id: int):
    uid = get_current_user_id()
    data = await request.get_json()
    share = await share_svc.share_note(
        uid, note_id,
        target_user_id=data.get("user_id"),
        target_group_id=data.get("group_id"),
        permission=data.get("permission", "viewer"),
    )
    if not share:
        return jsonify({"error": "Forbidden or invalid permission"}), 403
    asyncio.create_task(notify_note_shared(
        note_id, share.permission, uid,
        data.get("user_id"), data.get("group_id"),
    ))
    return jsonify(share.to_dict()), 201


@shares_bp.route("/api/notes/<int:note_id>/shares/<int:share_id>", methods=["PATCH"])
@login_required
async def update_note_share(note_id: int, share_id: int):
    uid = get_current_user_id()
    data = await request.get_json()
    share = await share_svc.update_note_share(uid, share_id, data.get("permission", ""))
    if not share:
        return jsonify({"error": "Not found or forbidden"}), 404
    return jsonify(share.to_dict())


@shares_bp.route("/api/notes/<int:note_id>/shares/<int:share_id>", methods=["DELETE"])
@login_required
async def remove_note_share(note_id: int, share_id: int):
    uid = get_current_user_id()
    if not await share_svc.remove_note_share(uid, share_id):
        return jsonify({"error": "Not found or forbidden"}), 404
    return jsonify({"status": "ok"})


# ---------------------------------------------------------------------------
# Shared-with-me
# ---------------------------------------------------------------------------

@shares_bp.route("/api/shared-with-me", methods=["GET"])
@login_required
async def shared_with_me():
    uid = get_current_user_id()
    return jsonify(await list_shared_with_me(uid))