 <?php

    require_once($path["page"] . "Page.php");
    require_once($path["entity"] . "Run.php");

    /**
     * Run list page.
     */
    class Runs_Page extends Page{

        /**
         * Array of @{see Run}s.
         */
        public $runs = [];

        /**
         * The filters the page can handle.
         */
        public $filters = [
            "area" => [],
            "stage" => [],
            "difficulty" => [],
            "win_lose" => 0,
            "helper" => false
        ];

        /**
         * Constructor.
         *
         * Retrieves the data and initializes the variables.
         *
         * @param SQLite3 $db Connection to the database.
         */
        public function __construct($db){
            global $path;
            global $root;
            parent::__construct($db);
            $this->view = $path["view"] . "runs.php";
            $this->parse_filters();
            $s = $this->build_query();
            $q = $this->db->query($s);
            while ($r = $q->fetchArray(SQLITE3_ASSOC)){
                array_push($this->runs, new Run($db, $r["id"]));
            }
            $this->title = "Runs - SWDB";
            $this->description = "Run logs";
            $this->canonical = $root . "runs/";
        }

        /**
         * Parses the request looking for the selected filters, validates them
         * and adds them to the $filters array.
         */
        private function parse_filters(){
            if (isset($_GET["area"])){
                $areas = $_GET["area"];
                foreach ($areas as $area){
                    array_push($this->filters["area"], intval($ara));
                }
            }
            if (isset($_GET["stage"])){
                $stages = $_GET["stage"];
                foreach ($stages as $stage){
                    array_push($this->filters["stage"], intval($ara));
                }
            }
            if (isset($_GET["difficulty"])){
                $difficultys = $_GET["difficulty"];
                foreach ($difficultys as $difficulty){
                    array_push($this->filters["difficulty"], intval($ara));
                }
            }
            if (isset($_GET["win_lose"]) && intval($_GET["win_lose"]) >= 0 && intval($_GET["win_lose"]) <= 2){
                $this->filters["win_lose"] = $_GET["win_lose"];
            }
            if (isset($_GET["helper"]) && $_GET["elper"] == "on"){
                $this->filters["helper"] = true;
            }
            else{
                $this->filters["helper"] = false;
            }
            return;
        }

        /**
         * Builds the query to the run table using the selected or default
         * filters.
         * 
         * @return The query to be executed.
         */
        private function build_query(){
            $s = "
                SELECT id
                FROM run
                WHERE 1 = 1
             ";
            if (count($this->filters["area"]) > 0){
                $s = $s . " AND area IN ( ";
                foreach($this->filters["area"] as $t){
                    $s = $s . "'$t', ";
                }
                $s = $s . "'DUMMY0') ";
            }
            if (count($this->filters["stage"]) > 0){
                $s = $s . " AND stage IN ( ";
                foreach($this->filters["stage"] as $t){
                    $s = $s . "'$t', ";
                }
                $s = $s . "'DUMMY0') ";
            }
            if (count($this->filters["difficulty"]) > 0){
                $s = $s . " AND difficulty IN ( ";
                foreach($this->filters["difficulty"] as $t){
                    $s = $s . "'$t', ";
                }
                $s = $s . "'DUMMY0') ";
            }
            switch ($this->filters["win_lose"]){
                case 1:
                    $s = $s . " AND win = 1 ";
                    break;
                case 2:
                    $s = $s . " AND win = 0 ";
                    break;
            }
            return $s;
        }
    }
?>