package mysqladmin

import (
	"context"
	"database/sql"
	"errors"

	entity "git.gocasts.ir/ebhomengo/niki/entity"
	errmsg "git.gocasts.ir/ebhomengo/niki/pkg/err_msg"
	richerror "git.gocasts.ir/ebhomengo/niki/pkg/rich_error"
	"git.gocasts.ir/ebhomengo/niki/repository/mysql"
)

func (d *DB) AdminExistByPhoneNumber(ctx context.Context, phoneNumber string) (bool, error) {
	const op = "mysqlbenefactor.IsExistBenefactorByID"

	query := `select * from admins where phone_number = ?`
	//nolint
	stmt, err := d.conn.PrepareStatement(ctx, mysql.StatementKeyAdminExistByPhoneNumber, query)
	if err != nil {
		return false, richerror.New(op).WithErr(err).
			WithMessage(errmsg.ErrorMsgCantPrepareStatement).WithKind(richerror.KindUnexpected)
	}

	row := stmt.QueryRowContext(ctx, phoneNumber)
	_, err = scanAdmin(row)
	if err != nil {
		sErr := sql.ErrNoRows
		//TODO-errorsas: second argument to errors.As should not be *error
		//nolint
		if errors.As(err, &sErr) {
			return false, nil
		}

		// TODO - log unexpected error for better observability
		return false, richerror.New(op).WithErr(err).
			WithMessage(errmsg.ErrorMsgCantScanQueryResult).WithKind(richerror.KindUnexpected)
	}

	return true, nil
}

func (d *DB) AdminExistByEmail(ctx context.Context, email string) (bool, error) {
	const op = "mysqlbenefactor.IsExistBenefactorByID"

	query := `select * from admins where email = ?`
	//nolint
	stmt, err := d.conn.PrepareStatement(ctx, mysql.StatementKeyAdminExistByEmail, query)
	if err != nil {
		return false, richerror.New(op).WithErr(err).
			WithMessage(errmsg.ErrorMsgCantPrepareStatement).WithKind(richerror.KindUnexpected)
	}

	row := stmt.QueryRowContext(ctx, email)
	_, err = scanAdmin(row)
	if err != nil {
		sErr := sql.ErrNoRows
		//TODO-errorsas: second argument to errors.As should not be *error
		//nolint
		if errors.As(err, &sErr) {
			return false, nil
		}

		// TODO - log unexpected error for better observability
		return false, richerror.New(op).WithErr(err).
			WithMessage(errmsg.ErrorMsgCantScanQueryResult).WithKind(richerror.KindUnexpected)
	}

	return true, nil
}

func (d *DB) GetAdminByID(ctx context.Context, adminID uint) (entity.Admin, error) {
	const op = "mysqladmin.GetAdminByID"

	query := `select * from admins where id = ?`
	//nolint
	stmt, err := d.conn.PrepareStatement(ctx, mysql.StatementKeyAdminGetByID, query)
	if err != nil {
		return entity.Admin{}, richerror.New(op).WithErr(err).
			WithMessage(errmsg.ErrorMsgCantPrepareStatement).WithKind(richerror.KindUnexpected)
	}

	row := stmt.QueryRowContext(ctx, adminID)
	admin, err := scanAdmin(row)
	if err != nil {
		sErr := sql.ErrNoRows
		//TODO-errorsas: second argument to errors.As should not be *error
		//nolint
		if errors.As(err, &sErr) {
			return entity.Admin{}, nil
		}

		// TODO - log unexpected error for better observability
		return entity.Admin{}, richerror.New(op).WithErr(err).
			WithMessage(errmsg.ErrorMsgCantScanQueryResult).WithKind(richerror.KindUnexpected)
	}

	return admin, nil
}

func (d *DB) AgentExistByID(ctx context.Context, agentID uint) (bool, error) {
	const op = "mysqladmin.AgentExistByID"

	query := `select count(*) from admins where role = ? and id = ?`
	//nolint
	stmt, err := d.conn.PrepareStatement(ctx, mysql.StatementKeyAdminAgentExistByID, query)
	if err != nil {
		return false, richerror.New(op).WithErr(err).
			WithMessage(errmsg.ErrorMsgCantPrepareStatement).WithKind(richerror.KindUnexpected)
	}

	var count int
	err = stmt.QueryRowContext(ctx, entity.AdminAgentRole.String(), agentID).Scan(&count)
	if err != nil {
		return false, richerror.New(op).WithErr(err).
			WithMessage(errmsg.ErrorMsgCantScanQueryResult).WithKind(richerror.KindUnexpected)
	}

	return count > 0, nil
}