<?php

namespace nntmux;

use nntmux\db\DB;

/**
 * Class Videos -- functions for site interaction.
 */
class Videos
{
    /**
     * @param array $options
     */
    public function __construct(array $options = [])
    {
        $defaults = [
			'Echo'         => false,
			'Logger'       => null,
			'Settings'     => null,
		];
        $options += $defaults;
        $this->pdo = ($options['Settings'] instanceof DB ? $options['Settings'] : new DB());
        $this->catWhere = 'r.categories_id BETWEEN '.Category::TV_ROOT.' AND '.Category::TV_OTHER;
    }

    /**
     * Get info from tables for the provided ID.
     *
     * @param $id
     *
     * @return array
     */
    public function getByVideoID($id)
    {
        return $this->pdo->queryOneRow(
			sprintf('
					SELECT v.*, tvi.summary, tvi.publisher, tvi.image
					FROM videos v
					INNER JOIN tv_info tvi ON v.id = tvi.videos_id
					WHERE id = %d',
					$id
			)
		);
    }

    /**
     * Retrieves a range of all shows for the show-edit admin list.
     *
     * @param        $start
     * @param        $num
     * @param string $showname
     *
     * @return array
     */
    public function getRange($start, $num, $showname = '')
    {
        if ($start === false) {
            $limit = '';
        } else {
            $limit = 'LIMIT '.$num.' OFFSET '.$start;
        }

        $rsql = '';
        if ($showname != '') {
            $rsql .= sprintf('AND v.title LIKE %s ', $this->pdo->escapeString('%'.$showname.'%'));
        }

        return $this->pdo->query(
			sprintf('
						SELECT v.*,
							tvi.summary, tvi.publisher, tvi.image
						FROM videos v
						INNER JOIN tv_info tvi ON v.id = tvi.videos_id
						WHERE 1=1 %s
						ORDER BY v.id ASC %s',
				$rsql,
				$limit
			)
		);
    }

    /**
     * Returns a count of all shows -- usually used by pager.
     *
     * @param string $showname
     *
     * @return mixed
     */
    public function getCount($showname = '')
    {
        $rsql = '';
        if ($showname != '') {
            $rsql .= sprintf('AND v.title LIKE %s ', $this->pdo->escapeString('%'.$showname.'%'));
        }
        $res = $this->pdo->queryOneRow(
			sprintf('
						SELECT COUNT(v.id) AS num
						FROM videos v
						INNER JOIN tv_info tvi ON v.id = tvi.videos_id
						WHERE 1=1 %s',
				$rsql
			)
		);

        return $res['num'];
    }

    /**
     * Retrieves and returns a list of shows with eligible releases.
     *
     * @param        $uid
     * @param string $letter
     * @param string $showname
     *
     * @return array
     */
    public function getSeriesList($uid, $letter = '', $showname = '')
    {
        $rsql = '';
        if ($letter != '') {
            if ($letter == '0-9') {
                $letter = '[0-9]';
            }

            $rsql .= sprintf('AND v.title REGEXP %s', $this->pdo->escapeString('^'.$letter));
        }
        $tsql = '';
        if ($showname != '') {
            $tsql .= sprintf('AND v.title LIKE %s', $this->pdo->escapeString('%'.$showname.'%'));
        }

        $qry = sprintf('
			SELECT v.* FROM
				(SELECT v.*,
					tve.firstaired AS prevdate, tve.title AS previnfo,
					tvi.publisher,
					us.id AS userseriesid
				FROM videos v
				INNER JOIN tv_info tvi ON v.id = tvi.videos_id
				INNER JOIN tv_episodes tve ON v.id = tve.videos_id
				LEFT OUTER JOIN user_series us ON v.id = us.videos_id AND us.users_id = %d
				WHERE 1=1
				AND tve.firstaired <= NOW()
				%s %s
				ORDER BY tve.firstaired DESC) v
			STRAIGHT_JOIN releases r ON r.videos_id = v.id
			WHERE %s
			GROUP BY v.id
			ORDER BY v.title ASC',
			$uid,
			$rsql,
			$tsql,
			$this->catWhere
		);

        $sql = $this->pdo->query($qry);

        return $sql;
    }
}