<?php

namespace IQBall\Core\Gateway;

use IQBall\Core\Connection;
use IQBall\Core\Data\Member;
use IQBall\Core\Data\User;
use PDO;

class MemberGateway {
    private Connection $con;

    /**
     * @param Connection $con
     */
    public function __construct(Connection $con) {
        $this->con = $con;
    }

    /**
     * insert member to a team
     * @param int $idTeam
     * @param int $userId
     * @param string $role
     * @return void
     */
    public function insert(int $idTeam, int $userId, string $role): void {
        $this->con->exec(
            "INSERT INTO Member(id_team, id_user, role) VALUES (:id_team, :id_user, :role)",
            [
                ":id_team" => [$idTeam, PDO::PARAM_INT],
                ":id_user" => [$userId, PDO::PARAM_INT],
                ":role" => [$role, PDO::PARAM_STR],
            ]
        );
    }

    /**
     * @param int $teamId
     * @return Member[]
     */
    public function getMembersOfTeam(int $teamId): array {
        $rows = $this->con->fetch(
            "SELECT a.id,a.email,a.username,a.profilePicture,m.role FROM Account a,Team t,Member m WHERE t.id = :id AND m.id_team = t.id AND m.id_user = a.id",
            [
                ":id" => [$teamId, PDO::PARAM_INT],
            ]
        );
        return array_map(fn($row) => new Member(new User($row['email'],$row['username'],$row['id'],$row['profilePicture']), $teamId, $row['role']),$rows);
    }

    /**
     * remove member from given team
     * @param int $idTeam
     * @param int $idMember
     * @return void
     */
    public function remove(int $idTeam, int $idMember): void {
        $this->con->exec(
            "DELETE FROM Member WHERE id_team = :id_team AND id_user = :id_user",
            [
                ":id_team" => [$idTeam, PDO::PARAM_INT],
                ":id_user" => [$idMember, PDO::PARAM_INT],
            ]
        );
    }

    /**
     * @param string $email
     * @param int $idTeam
     * @return bool
     */
    public function isCoach(string $email, int $idTeam): bool {
        $result =  $this->con->fetch(
                "SELECT role FROM Member WHERE id_team=:team AND id_user = (SELECT id FROM Account WHERE email=:email)",
                [
                    "team" => [$idTeam, PDO::PARAM_INT],
                    "email" => [$email, PDO::PARAM_STR]
                ]
            )[0]['role'];

        return $result == 'COACH';
    }

    /**
     * @param int $idTeam
     * @param int $idCurrentUser
     * @return bool
     */
    public function isMemberOfTeam(int $idTeam,int $idCurrentUser): bool {
        $result = $this->con->fetch(
            "SELECT id_user FROM Member WHERE id_team = :team AND id_user = :user",
                [
                    "team" => [$idTeam, PDO::PARAM_INT],
                    "user" => [$idCurrentUser, PDO::PARAM_INT]
                ]
            )[0]['id_user'] ?? null;
        return $result == null;
    }


}