<?php
namespace Framadate\Repositories;

use Framadate\FramaDB;
use Framadate\Utils;
use PDO;

class PollRepository extends AbstractRepository {
    public function insertPoll(string $poll_id, string $admin_poll_id, $form): void
    {
        $sql = 'INSERT INTO `' . Utils::table('poll') . '`
          (id, admin_id, title, description, admin_name, admin_mail, end_date, format, editable, receiveNewVotes, receiveNewComments, hidden, password_hash, results_publicly_visible,ValueMax)
          VALUES (?,?,?,?,?,?,FROM_UNIXTIME(?),?,?,?,?,?,?,?,?)';
        $prepared = $this->prepare($sql);
        $prepared->execute([$poll_id, $admin_poll_id, $form->title, $form->description, $form->admin_name, $form->admin_mail, $form->end_date, $form->format, ($form->editable>=0 && $form->editable<=2) ? $form->editable : 0, $form->receiveNewVotes ? 1 : 0, $form->receiveNewComments ? 1 : 0, $form->hidden ? 1 : 0, $form->password_hash, $form->results_publicly_visible ? 1 : 0,$form->ValueMax]);
    }

    public function findById(string $poll_id) {
        $prepared = $this->prepare('SELECT * FROM `' . Utils::table('poll') . '` WHERE id = ?');

        $prepared->execute([$poll_id]);
        $poll = $prepared->fetch();
        $prepared->closeCursor();

        return $poll;
    }

    public function findByAdminId(string $admin_poll_id) {
        $prepared = $this->prepare('SELECT * FROM `' . Utils::table('poll') . '` WHERE admin_id = ?');

        $prepared->execute([$admin_poll_id]);
        $poll = $prepared->fetch();
        $prepared->closeCursor();

        return $poll;
    }

    public function existsById(string $poll_id): bool
    {
        $prepared = $this->prepare('SELECT 1 FROM `' . Utils::table('poll') . '` WHERE id = ?');

        $prepared->execute([$poll_id]);

        return $prepared->rowCount() > 0;
    }

    public function existsByAdminId(string $admin_poll_id): bool
    {
        $prepared = $this->prepare('SELECT 1 FROM `' . Utils::table('poll') . '` WHERE admin_id = ?');

        $prepared->execute([$admin_poll_id]);

        return $prepared->rowCount() > 0;
    }

    public function update($poll): bool
    {
        $prepared = $this->prepare('UPDATE `' . Utils::table('poll') . '` SET title=?, admin_name=?, admin_mail=?, description=?, end_date=?, active=?, editable=?, hidden=?, password_hash=?, results_publicly_visible=? WHERE id = ?');

        return $prepared->execute([$poll->title, $poll->admin_name, $poll->admin_mail, $poll->description, $poll->end_date, $poll->active ? 1 : 0, ($poll->editable>=0 && $poll->editable<=2) ? $poll->editable  : 0, $poll->hidden ? 1 : 0, $poll->password_hash, $poll->results_publicly_visible ? 1 : 0, $poll->id]);
    }

    public function deleteById($poll_id): bool
    {
        $prepared = $this->prepare('DELETE FROM `' . Utils::table('poll') . '` WHERE id = ?');

        return $prepared->execute([$poll_id]);
    }

    /**
     * Find old polls. Limit: 20.
     *
     * @return array Array of old polls
     */
    public function findOldPolls(): array
    {
        $prepared = $this->prepare('SELECT * FROM `' . Utils::table('poll') . '` WHERE DATE_ADD(`end_date`, INTERVAL ' . PURGE_DELAY . ' DAY) < NOW() AND `end_date` != 0 LIMIT 20');
        $prepared->execute([]);

        return $prepared->fetchAll();
    }

    /**
     * Search polls in database.
     *
     * @param array $search Array of search : ['id'=>..., 'title'=>..., 'name'=>..., 'mail'=>...]
     * @param int $start The number of first entry to select
     * @param int $limit The number of entries to find
     * @return array The found polls
     */
    public function findAll(array $search, int $start, int $limit): array
    {
        // Polls

        $request = "SELECT p.*,";
        $request .= "    (SELECT count(1) FROM `" . Utils::table('vote') . "` v WHERE p.id=v.poll_id) votes";
        $request .= " FROM `" . Utils::table('poll') . "` p";
        $request .= " WHERE 1";

        $values = [];

        if (!empty($search["poll"])) {
            $request .= " AND p.id LIKE :poll";
            $values["poll"] = "{$search["poll"]}%";
        }

        $fields = [
            // key of $search => column name
            "title" => "title",
            "name" => "admin_name",
            "mail" => "admin_mail",
        ];

        foreach ($fields as $searchKey => $columnName) {
            if (empty($search[$searchKey])) {
                continue;
            }

            $request .= " AND p.$columnName LIKE :$searchKey";
            $values[$searchKey] = "%$search[$searchKey]%";
        }

        $request .= "  ORDER BY p.title ASC";
        $request .= "  LIMIT :start, :limit";

        $prepared = $this->prepare($request);

        foreach ($values as $searchKey => $value) {
            $prepared->bindParam(":$searchKey", $value, PDO::PARAM_STR);
        }

        $prepared->bindParam(':start', $start, PDO::PARAM_INT);
        $prepared->bindParam(':limit', $limit, PDO::PARAM_INT);

        $prepared->execute();

        return $prepared->fetchAll();
    }

    /**
     * Find all polls that are created with the given admin mail.
     *
     * @param string $mail Email address of the poll admin
     * @return array The list of matching polls
     */
    public function findAllByAdminMail(string $mail): array
    {
        $prepared = $this->prepare('SELECT * FROM `' . Utils::table('poll') . '` WHERE admin_mail = :admin_mail');
        $prepared->execute(['admin_mail' => $mail]);

        return $prepared->fetchAll();
    }

    /**
     * Get the total number of polls in database.
     *
     * @param array|null $search Array of search : ['id'=>..., 'title'=>..., 'name'=>...]
     * @return int The number of polls
     */
    public function count(array $search = null): int
    {
        // Total count
        $prepared = $this->prepare('
SELECT count(1) nb
  FROM `' . Utils::table('poll') . '` p
 WHERE (:id = "" OR p.id LIKE :id)
   AND (:title = "" OR p.title LIKE :title)
   AND (:name = "" OR p.admin_name LIKE :name)
 ORDER BY p.title ASC');

        $poll = $search === null ? '' : $search['poll'] . '%';
        $title = $search === null ? '' : '%' . $search['title'] . '%';
        $name = $search === null ? '' : '%' . $search['name'] . '%';
        $prepared->bindParam(':id', $poll, PDO::PARAM_STR);
        $prepared->bindParam(':title', $title, PDO::PARAM_STR);
        $prepared->bindParam(':name', $name, PDO::PARAM_STR);

        $prepared->execute();

        return $prepared->fetch()->nb;
    }
}