 <?php
 
    /**
     * Rune list page file.
     *
     * Provides a class with all the properties and methods to display the page.
     *
     * @category Page
     */

    /**
     * Require dependent files if not present.
     */
    require_once(PATH::PAGE . "Page.php");
    require_once(PATH::ENTITY . "Custom_Filter.php");
    require_once(PATH::ENTITY . "Rune.php");
    require_once(PATH::ENTITY . "Unit.php");

    /**
     * Rune list page model.
     *
     * @category Page
     */
    class Runes_Page extends Page{

        /**
         * @var \Rune[] Runes to show.
         *
         * In this case, the monster member is not the id, but a monster
         * instance.
         */
        public $runes = [];

        /**
         * @var mixed[] Default filter values.
         */
        public $filters = [
            "TYPE" => [],
            "MAIN" => [],
            "SUB" => [],
            "SLOT" => [],
            "MIN_QUALITY" => QUALITY_ID::NORMAL,
            "MAX_QUALITY" => QUALITY_ID::LEGEND,
            "MIN_ORIGINAL_QUALITY" => QUALITY_ID::NORMAL,
            "MAX_ORIGINAL_QUALITY" => QUALITY_ID::LEGEND,
            "MIN_STARS" => 1,
            "MAX_STARS" => 6,
            "MIN_LEVEL" => 0,
            "MAX_LEVEL" => 15,
            "MIN_EFFICIENCY" => 0,
            "MAX_EFFICIENCY" => 100,
            "MIN_MAX_EFFICIENCY" => 0,
            "MAX_MAX_EFFICIENCY" => 100,
            "ASSIGNED" => 1,
            "GROUP" => "SLOT"
        ];

        /**
         * Constructor.
         *
         * Retrieves the data and initializes the variables.
         *
         * @global int Player ID.
         * @global resource Database connection.
         */
        public function __construct(){
            global $UID;
            global $db;
            $this->view = PATH::VIEW . "runes.php";
            $this->parse_filters();
            $s = $this->build_query();
            $this->filters["GROUP"] = 1;
            $q = $db->query($s);
            while ($r = $q->fetchArray(SQLITE3_ASSOC)){
                $rune = new Rune($r["id"]);
                if ($r["unit"]){
                    $rune->unit = new Unit($r["unit"], false);
                }
                array_push($this->runes, $rune);
            }
            $this->title = "Runes - SWDB";
            $this->description = "Rune inventory";
            $this->canonical = URL::BASE . "runes/";
        }

        /**
         * Parses the request looking for the selected filters, validates them
         * and adds them to the $filters array.
         */
        private function parse_filters(){
            if (isset($_GET["type"])){
                $types = $_GET["type"];
                foreach ($types as $type){
                    array_push($this->filters["TYPE"], intval($type));
                }
            }
            if (isset($_GET["main_stat"])){
                $mains = $_GET["main_stat"];
                foreach ($mains as $main){
                    array_push($this->filters["MAIN"], intval($main));
                }
            }
            if (isset($_GET["sub_stat"])){
                $subs = $_GET["sub_stat"];
                foreach ($subs as $sub){
                    array_push($this->filters["SUB"], intval($sub));
                }
            }
            if (isset($_GET["slot"])){
                $slots = $_GET["slot"];
                foreach ($slots as $slot){
                    if (intval($slot) >= 1 && intval($slot) < 7){
                        array_push($this->filters["SLOT"], intval($slot));
                    }
                }
            }
            if (isset($_GET["min_stars"]) && intval($_GET["min_stars"]) > 0 && intval($_GET["min_stars"]) < 7){
                $this->filters["MIN_STARS"] = $_GET["min_stars"];
            }
            if (isset($_GET["max_stars"]) && intval($_GET["max_stars"]) > 0 && intval($_GET["max_stars"]) < 7){
                $this->filters["MAX_STARS"] = $_GET["max_stars"];
            }
            if (isset($_GET["min_level"]) && intval($_GET["min_level"]) >= 0 && intval($_GET["min_level"]) <= 15){
                $this->filters["MIN_LEVEL"] = $_GET["min_level"];
            }
            if (isset($_GET["max_level"]) && intval($_GET["max_level"]) >= 0 && intval($_GET["max_level"]) <= 15){
                $this->filters["MAX_LEVEL"] = $_GET["max_level"];
            }
            if (isset($_GET["min_quality"]) && intval($_GET["min_quality"]) >= QUALITY_ID::NORMAL && intval($_GET["min_quality"]) <= QUALITY_ID::LEGEND){
                $this->filters["MIN_QUALITY"] = $_GET["min_quality"];
            }
            if (isset($_GET["max_quality"]) && intval($_GET["max_quality"]) >= QUALITY_ID::NORMAL && intval($_GET["max_quality"]) <= QUALITY_ID::LEGEND){
                $this->filters["MAX_QUALITY"] = $_GET["max_quality"];
            }
            if (isset($_GET["min_original_quality"]) && intval($_GET["min_original_quality"]) >= QUALITY_ID::NORMAL && intval($_GET["min_original_quality"]) <= QUALITY_ID::LEGEND){
                $this->filters["MIN_ORIGINAL_QUALITY"] = $_GET["min_original_quality"];
            }
            if (isset($_GET["max_original_quality"]) && intval($_GET["max_original_quality"]) >= QUALITY_ID::NORMAL && intval($_GET["max_original_quality"]) <= QUALITY_ID::LEGEND){
                $this->filters["MAX_ORIGINAL_QUALITY"] = $_GET["max_original_quality"];
            }
            if (isset($_GET["min_efficiency"]) && intval($_GET["min_efficiency"]) >= 0 && intval($_GET["min_efficiency"]) <= 100){
                $this->filters["MIN_EFFICIENCY"] = $_GET["min_efficiency"];
            }
            if (isset($_GET["max_efficiency"]) && intval($_GET["max_efficiency"]) >= 0 && intval($_GET["max_efficiency"]) <= 100){
                $this->filters["MAX_EFFICIENCY"] = $_GET["max_efficiency"];
            }
            if (isset($_GET["min_max_efficiency"]) && intval($_GET["min_max_efficiency"]) >= 0 && intval($_GET["min_max_efficiency"]) <= 100){
                $this->filters["MIN_MAX_EFFICIENCY"] = $_GET["min_max_efficiency"];
            }
            if (isset($_GET["max_max_efficiency"]) && intval($_GET["max_max_efficiency"]) >= 0 && intval($_GET["max_max_efficiency"]) <= 100){
                $this->filters["MAX_MAX_EFFICIENCY"] = $_GET["max_max_efficiency"];
            }
            if (isset($_GET["assigned"]) && intval($_GET["assigned"]) >= 0 && intval($_GET["assigned"]) <= 4){
                $this->filters["ASSIGNED"] = $_GET["assigned"];
            }
            if (isset($_GET["group"]) && ($_GET["group"] == "1" || $_GET["group"] == "0")){
                $this->filters["GROUP"] = $_GET["group"];
            }
        }

        /**
         * Builds the query to the rune table using the selected or default
         * filters.
         * 
         * @return string The query to be executed.
         * @global int Player ID.
         */
        private function build_query(){
            global $UID;
            global $MODE;
            $s = "
              SELECT
                id,
                (
                  SELECT DISTINCT unit
                  FROM unit_rune
                  WHERE
                    rune = rune.id AND
                    rta = $MODE
                ) AS unit
              FROM
                rune
              WHERE
                uid = '$UID' AND
                stars >= " . $this->filters["MIN_STARS"] . " AND
                stars <= " . $this->filters["MAX_STARS"] . " AND
                level >= " . $this->filters["MIN_LEVEL"] . " AND
                level <= " . $this->filters["MAX_LEVEL"] . " AND
                quality >= " . $this->filters["MIN_QUALITY"] . " AND
                quality <= " . $this->filters["MAX_QUALITY"] . " AND
                original_quality >= " . $this->filters["MIN_ORIGINAL_QUALITY"] . " AND
                original_quality <= " . $this->filters["MAX_ORIGINAL_QUALITY"] . " AND
                efficiency >= " . $this->filters["MIN_EFFICIENCY"] . " AND
                efficiency <= " . $this->filters["MAX_EFFICIENCY"] . " AND
                max_efficiency >= " . $this->filters["MIN_MAX_EFFICIENCY"] . " AND
                max_efficiency <= " . $this->filters["MAX_MAX_EFFICIENCY"] . "
            ";
            if (count($this->filters["MAIN"]) > 0){
                $values = "(";
                foreach($this->filters["MAIN"] as $t){
                    $values = $values . "'$t', ";
                }
                $values = $values . "'DUMMY0') ";
                $s .= "
                  AND id IN (
                    SELECT rune
                    FROM rune_stat
                    WHERE
                      slot = " . RUNE_STAT_SLOT_ID::MAIN . " AND
                      stat IN $values
                  )
                ";
            }
            if (count($this->filters["SUB"]) > 0){
                $values = "(";
                foreach($this->filters["SUB"] as $t){
                    $values = $values . "'$t', ";
                }
                $values = $values . "'DUMMY0') ";
                $s .= "
                  AND id IN (
                    SELECT rune
                    FROM rune_stat
                    WHERE
                      slot != " . RUNE_STAT_SLOT_ID::MAIN . " AND
                      stat IN $values
                  )
                ";
            }
            if (count($this->filters["TYPE"]) > 0){
                $s = $s . " AND upper(type) IN ( ";
                foreach($this->filters["TYPE"] as $t){
                    $s = $s . "'$t', ";
                }
                $s = $s . "'DUMMY0') ";
            }
            if (count($this->filters["SLOT"]) > 0){
                $s = $s . " AND slot IN ( ";
                foreach($this->filters["SLOT"] as $t){
                    $s = $s . "$t, ";
                }
                $s = $s . "-1) ";
            }
            switch ($this->filters["ASSIGNED"]){
                case 1:
                    $s = $s . " AND unit IS NOT NULL ";
                    break;
                case 2:
                    $s = $s . " AND unit IS NULL ";
                    break;
                case 3:
                    $s = $s . " AND (unit IS NULL OR unit IN (SELECT DISTINCT id FROM unit WHERE building <> " . BUILDING_ID::MONSTER_STORAGE . ")) ";
                    break;
                case 4:
                    $s = $s . " AND unit IN (SELECT DISTINCT id FROM unit WHERE building <> " . BUILDING_ID::MONSTER_STORAGE . ") ";
                    break;
            }
            $s = $s . " ORDER BY ";
            if ($this->filters["GROUP"] == 1){ // 1: Type, 0: Slot
                $s = $s . " type, slot, stars DESC, original_quality DESC, quality DESC, level;";
            }
            else{
                $s = $s . " slot, type, stars DESC, original_quality DESC, quality DESC, level;";
            }
            return $s;
        }
    }
?>