 <?php
/**
 * Rune list page file.
 *
 * Provides a class with all the properties and methods to display the page.
 *
 * @author Iñigo Valentin <i@inigovalentin.com>
 * @license https://www.gnu.org/licenses/gpl-3.0.en.html GNU General Public License V3
 * @package SWDB
 */

require_once(PATH::PAGE . "Page.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.
     */
    private $runes = [];

    /**
     * @var mixed[] Default filter values.
     */
    private $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.
     */
    public function __construct(){
        parent::__construct();
        $this->set_public(true);
        $this->set_view("runes.php");
        $this->set_title("Runes");
        $this->set_description(get_context()->get_player()->get_name() . "'s runes");
        $this->set_canonical("player/" . get_context()->get_player()->get_id() . "/runes/");
        $this->add_css("runes.css");
        
        $this->parse_filters();
        // TODO: Group hardcoded
        $this->filters["GROUP"] = 1;
        $result_set = $this->prepare_statement()->execute();
        while ($result = $result_set->fetchArray(SQLITE3_ASSOC)){
            array_push($this->runes, new Rune($result["id"]));
        }
        $this->set_code(200);
        $this->set_message("OK");
    }

    /**
     * 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"];
        }
    }

    /**
     * Prepares the statement to execute against the database using the filter values.
     *
     * @return SQLite3Stmt prepared statement.
     */
    private function prepare_statement(){
        // Common items
        $query = "
          SELECT
            id
          FROM
            rune
          WHERE
            player = :player AND
            stars BETWEEN :min_stars AND :max_stars AND
            level BETWEEN :min_level AND :max_level AND
            quality BETWEEN :min_quality AND :max_quality AND
            original_quality BETWEEN :min_original_quality AND :max_original_quality AND
            efficiency BETWEEN :min_efficiency AND :max_efficiency AND
            max_efficiency BETWEEN :min_max_efficiency AND :max_max_efficiency
        ";
        
        // Some main stat selected.
        if (count($this->filters["MAIN"]) > 0){
            $query .= " AND id IN (SELECT rune FROM rune_stat WHERE slot = :slot_main AND stat IN (";
            for ($i = 0; $i < sizeof($this->filters["MAIN"]); $i ++){
                $query .= ":main_$i, ";
            }
            $query = rtrim($query, ", ") . ")) ";
        }
        
        // Some substat selected.
        if (count($this->filters["SUB"]) > 0){
            $query .= " AND id IN (SELECT rune FROM rune_stat WHERE slot <> :slot_main AND stat IN (";
            for ($i = 0; $i < sizeof($this->filters["MAIN"]); $i ++){
                $query .= ":sub_$i, ";
            }
            $query = rtrim($query, ", ") . ")) ";
        }
        
        // Some sets selected.
        if (count($this->filters["TYPE"]) > 0){
            $query .= " AND type IN (";
            for ($i = 0; $i < sizeof($this->filters["TYPE"]); $i ++){
                $query .= ":type_$i, ";
            }
            $query = rtrim($query, ", ") . ") ";
        }
        
        // Some slots selected.
        if (count($this->filters["SLOT"]) > 0){
            $query .= " AND slot IN (";
            for ($i = 0; $i < sizeof($this->filters["SLOT"]); $i ++){
                $query .= ":slot_$i, ";
            }
            $query = rtrim($query, ", ") . ") ";
        }
        
        switch ($this->filters["ASSIGNED"]){
            case 0: // All
                break;
            case 1: // Assigned
                $query .= "
                  AND id IN (
                    SELECT DISTINCT rune
                    FROM unit_rune
                    WHERE rta = :rta) ";
                break;
            case 2: // Unassigned
                $query .= "
                  AND id NOT IN (
                    SELECT DISTINCT rune
                    FROM unit_rune
                    WHERE rta = :rta) ";
                break;
            case 3: // Unassigned or assigned to non-storage units
                $query .= "
                  AND (
                    id NOT IN (
                      SELECT DISTINCT rune
                      FROM unit_rune
                      WHERE rta = :rta
                    ) OR (
                      id IN (
                        SELECT DISTINCT unit_rune.rune
                        FROM
                          unit_rune,
                          unit
                        WHERE
                          unit_rune.rta = :rta AND
                          unit_rune.unit = unit.id AND
                          unit.building = :storage_building
                      )
                    )
                  )";
                break;
            case 4: // Assigned to non-storage units
                $query .= "
                  AND (
                    id IN (
                      SELECT DISTINCT unit_rune.rune
                      FROM
                        unit_rune,
                        unit
                      WHERE
                        unit_rune.rta = :rta AND
                        unit_rune.unit = unit.id AND
                        unit.building = :storage_building
                    )
                  )";
                break;
        }
        $query .= " ORDER BY ";
        if ($this->filters["GROUP"] == 1){ // 1: Type, 0: Slot
            $query .= " type, slot, stars DESC, original_quality DESC, quality DESC, level;";
        }
        else{
            $query .= " slot, type, stars DESC, original_quality DESC, quality DESC, level;";
        }
        $statement = get_context()->get_db()->prepare($query);
        $statement->bindValue(":rta", get_context()->get_game_mode(), SQLITE3_INTEGER);
        $statement->bindValue(":player", get_context()->get_player()->get_id(), SQLITE3_TEXT);
        $statement->bindValue(":min_stars", $this->filters["MIN_STARS"], SQLITE3_INTEGER);
        $statement->bindValue(":max_stars", $this->filters["MAX_STARS"], SQLITE3_INTEGER);
        $statement->bindValue(":min_level", $this->filters["MIN_LEVEL"], SQLITE3_INTEGER);
        $statement->bindValue(":max_level", $this->filters["MAX_LEVEL"], SQLITE3_INTEGER);
        $statement->bindValue(":min_quality", $this->filters["MIN_QUALITY"], SQLITE3_INTEGER);
        $statement->bindValue(":max_quality", $this->filters["MAX_QUALITY"], SQLITE3_INTEGER);
        $statement->bindValue(":min_original_quality", $this->filters["MIN_ORIGINAL_QUALITY"], SQLITE3_INTEGER);
        $statement->bindValue(":max_original_quality", $this->filters["MAX_ORIGINAL_QUALITY"], SQLITE3_INTEGER);
        $statement->bindValue(":min_efficiency", $this->filters["MIN_EFFICIENCY"], SQLITE3_FLOAT);
        $statement->bindValue(":max_efficiency", $this->filters["MAX_EFFICIENCY"], SQLITE3_FLOAT);
        $statement->bindValue(":min_max_efficiency", $this->filters["MIN_MAX_EFFICIENCY"], SQLITE3_FLOAT);
        $statement->bindValue(":max_max_efficiency", $this->filters["MAX_MAX_EFFICIENCY"], SQLITE3_FLOAT);
        $statement->bindValue(":slot_main", RUNE_STAT_SLOT_ID::MAIN, SQLITE3_FLOAT);
        for ($i = 0; $i < sizeof($this->filters["MAIN"]); $i ++){
            $statement->bindValue(":main_$i", $this->filters["MAIN"][$i], SQLITE3_INTEGER);
        }
        for ($i = 0; $i < sizeof($this->filters["SUB"]); $i ++){
            $statement->bindValue(":sub_$i", $this->filters["SUB"][$i], SQLITE3_INTEGER);
        }
        for ($i = 0; $i < sizeof($this->filters["TYPE"]); $i ++){
            $statement->bindValue(":type_$i", $this->filters["TYPE"][$i], SQLITE3_INTEGER);
        }
        for ($i = 0; $i < sizeof($this->filters["SLOT"]); $i ++){
            $statement->bindValue(":slot_$i", $this->filters["SLOT"][$i], SQLITE3_INTEGER);
        }
        $statement->bindValue(":storage_building", BUILDING_ID::MONSTER_STORAGE, SQLITE3_INTEGER);
        return $statement;
    }

    /**
     * Retrieves the page filters.
     *
     * @return mixed[] Page filtes
     */
    public function get_filters(){
        return $this->filters;
    }
    
    /**
     * Retrieves one filter.
     *
     * @param string $key
     * @return mixed Filter value, null if if doesn't exist.
     */
    public function get_filter($key){
        if (array_key_exists($key, $this->filters)){
            return $this->filters[$key];
        }
        else{
            return null;
        }
    }
    
    /**
     * Retrieves the selection of runes.
     *
     * @return Rune[] Runes to show on the page.
     */
    public function get_runes(){
        return $this->runes;
    }
}