/*
 * Copyright 2026 Oleg Borodin <onborodin@gmail.com>
 *
 * This work is published and licensed under a Creative Commons
 * Attribution-NonCommercial-NoDerivatives 4.0 International License.
 *
 * Distribution of this work is permitted, but commercial use and
 * modifications are strictly prohibited.
 */
package accoper

import (
	"context"
	"fmt"

	"mstore/pkg/descr"
)

type DeleteAccountParams struct {
	Username  string `json:"username"`
	AccountID string `json:"accountId"`
}
type DeleteAccountResult struct{}

func (oper *Operator) DeleteAccount(ctx context.Context, operatorID string, params *DeleteAccountParams) (*DeleteAccountResult, error) {
	var err error
	res := &DeleteAccountResult{}

	if params.Username == "" && params.AccountID == "" {
		err := fmt.Errorf("Empty username and accountId parameter")
		return res, err
	}

	var accountDescr *descr.Account
	var accountExists bool
	switch {
	case params.AccountID != "":
		accountExists, accountDescr, err = oper.mdb.GetAccountByID(ctx, params.AccountID)
		if err != nil {
			return res, err
		}
		if !accountExists {
			err := fmt.Errorf("Account with ID %s dont exists", params.AccountID)
			return res, err
		}
	case params.Username != "":
		accountExists, accountDescr, err = oper.mdb.GetAccountByUsername(ctx, params.Username)
		if err != nil {
			return res, err
		}
		if !accountExists {
			err := fmt.Errorf("Account with name %s dont exists", params.Username)
			return res, err
		}
	default:
		err := fmt.Errorf("Empty username and accountId parameter")
		return res, err
	}
	if accountDescr == nil {
		err := fmt.Errorf("Null account desriptor")
		return res, err
	}
	err = oper.mdb.DeleteAllGrantsForAccountID(ctx, accountDescr.ID)
	if err != nil {
		return res, err
	}
	err = oper.mdb.DeleteAccountByID(ctx, accountDescr.ID)
	if err != nil {
		return res, err
	}
	return res, err
}