from typing import Optional

import crud
from email_validator import EmailNotValidError, validate_email
from flask import jsonify, request
from pydantic import BaseModel, Field, ValidationError
from sqlalchemy.orm import Session
from helpers import kratos, init_db_connection, CORS_HEADERS


def main():
    """
    ```fission
    {
        "name": "email-admin-delete",
        "http_triggers": {
            "email-admin-delete-http": {
                "url": "/ailbl/admin/users/{UserId}/emails/{UserEmailId}",
                "methods": ["DELETE"]
            }
        }
    }
    ```
    """
    try:
        if request.method == "DELETE":
            return delete_email()
        else:
            return {"error": "Method not allow"}, 405
    except Exception as ex:
        return jsonify({"error": str(ex)}), 500


def delete_email():
    user_id = request.headers.get("X-Fission-Params-UserId")
    email_id = request.headers.get("X-Fission-Params-UserEmailId")

    if not user_id:
        return jsonify({"errorCode": "USER_ID_REQUIRED"}), 400, CORS_HEADERS
    if not email_id:
        return jsonify({"errorCode": "USER_EMAIL_ID_REQUIRED"}), 400, CORS_HEADERS
    # check if email exists
    if exists_email(email_id) is False:
        return jsonify({"errorCode": "EMAIL_NOT_FOUND"}), 404, CORS_HEADERS

    # check if email is primary = email chinh
    # config , status = get_config_account(user_id)
    # if status == 200:
    #     email_primary = config["profile_setting"]["primary"]["email"]
    #     if check_is_primary(email_primary, email_id):
    #         return jsonify({"errorCode": "CANNOT_DELETE_PRIMARY_EMAIL"}), 400, CORS_HEADERS

     # Proceed to delete the email
    conn = None
    cursor = None
    try:
        conn = init_db_connection()
        cursor = conn.cursor()

        cursor.execute(
            """
            DELETE FROM ailbl_user_email
            WHERE id = %s AND user_id = %s
            RETURNING id;
            """,
            (email_id, user_id)
        )

        result = cursor.fetchone()
        if not result:
            return jsonify({"errorCode": "EMAIL_NOT_FOUND"}), 404, CORS_HEADERS

        conn.commit()
        return jsonify({
            "id": email_id,
            "status": "deleted"
        }), 200, CORS_HEADERS

    except Exception as e:
        if conn:
            conn.rollback()
        # current_app.logger.error(f"[delete_email] Database error: {str(e)}")
        return jsonify({"errorCode": "DATABASE_ERROR"}), 500, CORS_HEADERS

    finally:
        if cursor:
            cursor.close()
        if conn:
            conn.close()

def exists_email(email_id: str) -> bool:
    conn = None
    cursor = None
    try:
        conn = init_db_connection()
        with conn.cursor() as cursor:
            cursor.execute("""
                SELECT 1
                FROM ailbl_user_email 
                WHERE id = %s;
            """, (email_id,))
            row = cursor.fetchone()
            return row is not None
    except Exception as e:
        # current_app.logger.error(f"[exists_email] DB Error: {e}")
        return False
    finally:
        if cursor:
            cursor.close()
        if conn:
            conn.close()



    # update email : set as primary


# def update_email():
#     user_id = request.headers.get("X-Fission-Params-UserId")
#     email_id = request.headers.get("X-Fission-Params-UserEmailId")
#     request_data = request.get_json()
#     is_primary = request_data.get("is_primary")
#     if not user_id:
#         return jsonify({"errorCode": "USER_ID_REQUIRED"}), 400, CORS_HEADERS
#     if not email_id:
#         return jsonify({"errorCode": "USER_EMAIL_ID_REQUIRED"}), 400, CORS_HEADERS
#     if not is_primary:
#         return jsonify({"errorCode": "NO_UPDATES_PROVIDED"}), 400, CORS_HEADERS

#     # ensure config account exists
#     # create_config_account_if_not_exists(user_id)

#     # check if email exists
#     email = get_email_by_id(email_id=email_id)
#     if not email:
#         return jsonify({"errorCode": "EMAIL_NOT_FOUND"}), 404, CORS_HEADERS

#     # set as primary in config account
#     if is_primary:
#         identity = kratos.get_identity(user_id)
#         traits = identity.traits
#         traits["email"] = email
#         res = kratos.update_identity(
#             id=user_id,
#             update_identity_body={
#                 "schema_id": identity.schema_id,
#                 "traits": traits,
#                 "state": identity.state,
#             },
#         )
#         # update config email
#         # r, status = create_or_update_config_account(email=email, key=user_id, type="update")
#         # if status != 200:
#         #     return jsonify({"errorCode": "FAILED_TO_UPDATE_PRIMARY_EMAIL"}), status

#     return jsonify({
#         "id": email_id,
#         "user_id": user_id,
#         "email": email,
#         "status": "set_as_primary"
#     }), 200, CORS_HEADERS


# def get_email_by_id(email_id: str):  # GET EMAIL ra id moi update duoc
#     conn = None
#     cursor = None
#     try:
#         conn = init_db_connection()
#         with conn.cursor() as cursor:
#             cursor.execute("""
#                 SELECT email
#                 FROM ailbl_user_email 
#                 WHERE id = %s;
#             """, (email_id,))
#             row = cursor.fetchone()
#             if row:
#                 return row[0]
#             else:
#                 return None
#     except Exception as e:
#         # current_app.logger.error(f"[get_email_by_id] DB Error: {e}")
#         return {"error": "DATABASE_ERROR"}, 500
#     finally:
#         if cursor:
#             cursor.close()
#         if conn:
#             conn.close()