<?php

namespace IQBall\App\Controller;

use IQBall\App\Session\SessionHandle;
use IQBall\App\ViewHttpResponse;
use IQBall\Core\Data\Account;
use IQBall\Core\Http\HttpCodes;
use IQBall\Core\Http\HttpRequest;
use IQBall\Core\Http\HttpResponse;
use IQBall\Core\Model\TeamModel;
use IQBall\Core\Validation\FieldValidationFail;
use IQBall\Core\Validation\ValidationFail;
use IQBall\Core\Validation\DefaultValidators;

class TeamController {
    private TeamModel $model;

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

    /**
     * @param SessionHandle $session
     * @return ViewHttpResponse the team creation panel
     */
    public function displayCreateTeam(SessionHandle $session): ViewHttpResponse {
        return ViewHttpResponse::twig("insert_team.html.twig", []);
    }

    /**
     * @param SessionHandle $session
     * @return ViewHttpResponse the team panel to delete a member
     */
    public function displayDeleteMember(SessionHandle $session): ViewHttpResponse {
        return ViewHttpResponse::twig("delete_member.html.twig", []);
    }

    /**
     * create a new team from given request name, mainColor, secondColor and picture url
     * @param array<string, mixed> $request
     * @param SessionHandle $session
     * @return HttpResponse
     */
    public function submitTeam(array $request, SessionHandle $session): HttpResponse {
        $failures = [];
        $request = HttpRequest::from($request, $failures, [
            "name" => [DefaultValidators::lenBetween(1, 32), DefaultValidators::nameWithSpaces()],
            "main_color" => [DefaultValidators::hexColor()],
            "second_color" => [DefaultValidators::hexColor()],
            "picture" => [DefaultValidators::isURL()],
        ]);
        if (!empty($failures)) {
            $badFields = [];
            foreach ($failures as $e) {
                if ($e instanceof FieldValidationFail) {
                    $badFields[] = $e->getFieldName();
                }
            }
            return ViewHttpResponse::twig('insert_team.html.twig', ['bad_fields' => $badFields]);
        }
        $teamId = $this->model->createTeam($request['name'], $request['picture'], $request['main_color'], $request['second_color']);
        $this->model->addMember($session->getAccount()->getUser()->getEmail(), $teamId, 'COACH');
        return HttpResponse::redirect('/team/' . $teamId);
    }

    /**
     * @param SessionHandle $session
     * @return ViewHttpResponse the panel to search a team by its name
     */
    public function displayListTeamByName(SessionHandle $session): ViewHttpResponse {
        return ViewHttpResponse::twig("list_team_by_name.html.twig", []);
    }

    /**
     * returns a view that contains all the teams description whose name matches the given name needle.
     * @param array<string, mixed> $request
     * @param SessionHandle $session
     * @return HttpResponse
     */
    public function listTeamByName(array $request, SessionHandle $session): HttpResponse {
        $errors = [];
        $request = HttpRequest::from($request, $errors, [
            "name" => [DefaultValidators::lenBetween(1, 32), DefaultValidators::nameWithSpaces()],
        ]);

        if (!empty($errors) && $errors[0] instanceof FieldValidationFail) {
            $badField = $errors[0]->getFieldName();
            return ViewHttpResponse::twig('list_team_by_name.html.twig', ['bad_field' => $badField]);
        }

        $teams = $this->model->listByName($request['name'], $session->getAccount()->getUser()->getId());

        if (empty($teams)) {
            return ViewHttpResponse::twig('display_teams.html.twig', []);
        }
        return ViewHttpResponse::twig('display_teams.html.twig', ['teams' => $teams]);
    }

    /**
     * Delete a team with its id
     * @param int $id
     * @param SessionHandle $session
     * @return HttpResponse
     */
    public function deleteTeamById(int $id, SessionHandle $session): HttpResponse {
        $a = $session->getAccount();
        $ret = $this->model->deleteTeam($a->getUser()->getEmail(), $id);
        if($ret != 0) {
            return ViewHttpResponse::twig('display_team.html.twig', ['notDeleted' => true]);
        }
        return HttpResponse::redirect('/');
    }

    /**
     * Display a team with its id
     * @param int $id
     * @param SessionHandle $session
     * @return ViewHttpResponse a view that displays given team information
     */
    public function displayTeam(int $id, SessionHandle $session): ViewHttpResponse {
        $result = $this->model->getTeam($id, $session->getAccount()->getUser()->getId());
        if($result == null) {
            return ViewHttpResponse::twig('error.html.twig', [
                'failures' => [ValidationFail::unauthorized("Vous n'avez pas accès à cette équipe.")],
            ], HttpCodes::FORBIDDEN);
        }
        $role = $this->model->isCoach($id, $session->getAccount()->getUser()->getEmail());

        return ViewHttpResponse::react(
            'views/TeamPanel.tsx',
            [
            'team' => [
                "info" => $result->getInfo(),
                "members" => $result->listMembers(),
            ],
            'isCoach' => $role,
            'currentUserId' => $session->getAccount()->getUser()->getId()]
        );
    }

    /**
     * @param int $idTeam
     * @param SessionHandle $session
     * @return ViewHttpResponse the team panel to add a member
     */
    public function displayAddMember(int $idTeam, SessionHandle $session): ViewHttpResponse {
        return ViewHttpResponse::twig("add_member.html.twig", ['idTeam' => $idTeam]);
    }

    /**
     * add a member to a team
     * @param int $idTeam
     * @param array<string, mixed> $request
     * @param SessionHandle $session
     * @return HttpResponse
     */
    public function addMember(int $idTeam, array $request, SessionHandle $session): HttpResponse {
        $errors = [];
        if(!$this->model->isCoach($idTeam, $session->getAccount()->getUser()->getEmail())) {
            return ViewHttpResponse::twig('error.html.twig', [
                'failures' => [ValidationFail::unauthorized("Vous n'avez pas accès à cette action pour cette équipe.")],
            ], HttpCodes::FORBIDDEN);
        }
        $request = HttpRequest::from($request, $errors, [
            "email" => [DefaultValidators::email(), DefaultValidators::lenBetween(5, 256)],
        ]);
        if(!empty($errors)) {
            return ViewHttpResponse::twig('add_member.html.twig', ['badEmail' => true,'idTeam' => $idTeam]);
        }
        $ret = $this->model->addMember($request['email'], $idTeam, $request['role']);

        switch($ret) {
            case -1:
                return ViewHttpResponse::twig('add_member.html.twig', ['notFound' => true,'idTeam' => $idTeam]);
            case -2:
                return ViewHttpResponse::twig('add_member.html.twig', ['alreadyExisting' => true,'idTeam' => $idTeam]);
            default:
                return HttpResponse::redirect('/team/' . $idTeam);
        }
    }

    /**
     * remove a member from a team with their ids
     * @param int $idTeam
     * @param int $idMember
     * @param SessionHandle $session
     * @return HttpResponse
     */
    public function deleteMember(int $idTeam, int $idMember, SessionHandle $session): HttpResponse {
        if(!$this->model->isCoach($idTeam, $session->getAccount()->getUser()->getEmail())) {
            return ViewHttpResponse::twig('error.html.twig', [
                'failures' => [ValidationFail::unauthorized("Vous n'avez pas accès à cette action pour cette équipe.")],
            ], HttpCodes::FORBIDDEN);
        }
        $teamId = $this->model->deleteMember($idMember, $idTeam);
        if($teamId == -1 || $session->getAccount()->getUser()->getId() == $idMember) {
            return HttpResponse::redirect('/');
        }
        return $this->displayTeam($teamId, $session);
    }

    /**
     * @param int $idTeam
     * @param SessionHandle $session
     * @return ViewHttpResponse
     */
    public function displayEditTeam(int $idTeam, SessionHandle $session): ViewHttpResponse {
        return ViewHttpResponse::twig("edit_team.html.twig", ['team' => $this->model->getTeam($idTeam, $session->getAccount()->getUser()->getId())]);
    }

    /**
     * @param int $idTeam
     * @param array<string,mixed> $request
     * @param SessionHandle $session
     * @return HttpResponse
     */
    public function editTeam(int $idTeam, array $request, SessionHandle $session): HttpResponse {
        if(!$this->model->isCoach($idTeam, $session->getAccount()->getUser()->getEmail())) {
            return ViewHttpResponse::twig('error.html.twig', [
                'failures' => [ValidationFail::unauthorized("Vous n'avez pas accès à cette action pour cette équipe.")],
            ], HttpCodes::FORBIDDEN);
        }
        $failures = [];
        $request = HttpRequest::from($request, $failures, [
            "name" => [DefaultValidators::lenBetween(1, 32), DefaultValidators::nameWithSpaces()],
            "main_color" => [DefaultValidators::hexColor()],
            "second_color" => [DefaultValidators::hexColor()],
            "picture" => [DefaultValidators::isURL()],
        ]);
        if (!empty($failures)) {
            $badFields = [];
            foreach ($failures as $e) {
                if ($e instanceof FieldValidationFail) {
                    $badFields[] = $e->getFieldName();
                }
            }
            return ViewHttpResponse::twig('edit_team.html.twig', ['bad_fields' => $badFields]);
        }
        $this->model->editTeam($idTeam, $request['name'], $request['picture'], $request['main_color'], $request['second_color']);
        return HttpResponse::redirect('/team/' . $idTeam);
    }
}