 <?php
/**
 * Run list 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 . "Run.php");

/**
 * Run list page model.
 *
 * @category Page
 */
class Runs_Page extends Page{

    /**
     * @var Run[] Runs to show.
     */
    private $runs = [];

    /**
     * @var mixed[] Page filters
     */
    private $filters = [
        "AREA_TYPE" => 0,
        "AREA" => 0,
        "STAGE" => 0,
        "DIFFICULTY" => 0,
        "DATE_MIN" => null,
        "DATE_MAX" => null,
        "DEFEAT" => false,
        "HELPER" => false,
        "NUMBER" => 20,
    ];

    /**
     * Constructor.
     *
     * Retrieves the data and initializes the variables.
     */
    public function __construct(){
        parent::__construct();
        $this->set_public(false);
        $this->set_view("runs.php");
        $this->set_title("Runs");
        $this->set_description(get_context()->get_player()->get_name() . "'s run logs");
        $this->set_canonical("player/" . get_context()->get_player()->get_id() . "/runs/");
        $this->add_css("runs.css");
        $this->parse_filters();
        $result_set = $this->prepare_statement()->execute();
        while ($result = $result_set->fetchArray(SQLITE3_ASSOC)){
            array_push($this->runs, new Run($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["area_type"]) && intval($_GET["area_type"]) > 0){
            $this->filters["AREA_TYPE"] = $_GET["area_type"];
        }
        if (isset($_GET["area"]) && intval($_GET["area"]) > 0){
            $this->filters["AREA"] = $_GET["area"];
        }
        if (isset($_GET["stage"]) && intval($_GET["stage"]) > 0){
            $this->filters["STAGE"] = $_GET["stage"];
        }
        if (isset($_GET["difficulty"]) && intval($_GET["difficulty"]) >= DIFFICULTY_ID::NORMAL && intval($_GET["difficulty"]) <= DIFFICULTY_ID::HELL){
            $this->filters["DIFFICULTY"] = $_GET["difficulty"];
        }
        if (isset($_GET["date_min"]) && strlen($_GET["date_min"]) > 0){
            $this->filters["DATE_MIN"] = DateTime::createFromFormat('Y-m-d', $_GET["date_min"])->format('Y-m-d');
        }
        if (isset($_GET["date_max"]) && strlen($_GET["date_max"]) > 0){
            $this->filters["DATE_MAX"] = DateTime::createFromFormat('Y-m-d', $_GET["date_max"])->format('Y-m-d');
        }
        if (isset($_GET["defeat"]) && $_GET["defeat"] == "on"){
            $this->filters["DEFEAT"] = true;
        }
        else{
            $this->filters["HELPER"] = false;
        }
        if (isset($_GET["helper"]) && $_GET["helper"] == "on"){
            $this->filters["HELPER"] = true;
        }
        else{
            $this->filters["HELPER"] = false;
        }
        if (isset($_GET["number"]) && intval($_GET["number"]) > 0){
            $this->filters["NUMBER"] = $_GET["number"];
        }
        return;
    }

    /**
     * Prepares the statement to execute against the database using the filter values.
     *
     * @return SQLite3Stmt prepared statement.
     */
    private function prepare_statement(){
        
        // Common items
        $query = "
            SELECT id
            FROM run
            WHERE player = :player
         ";
        if ($this->filters["AREA_TYPE"] > 0){
            $query .= " AND area_type =  :area_type ";
        }
        if ($this->filters["AREA"] > 0){
            $query .= " AND area =  :area ";
        }
        if ($this->filters["STAGE"] > 0){
            $query .= " AND stage =  :stage ";
        }
        if ($this->filters["DIFFICULTY"] > 0){
            $query .= " AND difficulty =  :difficulty ";
        }
        if (! $this->filters["DEFEAT"]){
            $query .= " AND win = 1 ";
        }
        if (! $this->filters["HELPER"]){
            $query .= " AND helper = 0 ";
        }
        if ($this->filters["DATE_MIN"] != null){
            $query .= " AND date(dtime) >= date(:date_min) ";
        }
        if ($this->filters["DATE_MAX"] != null){
            $query .= " AND date(dtime) >= date(:date_max) ";
        }
        $query .= " ORDER BY dtime DESC LIMIT :limit;";
        
        $statement = get_context()->get_db()->prepare($query);
        $statement->bindValue(":player", get_context()->get_player()->get_id(), SQLITE3_TEXT);
        $statement->bindValue(":area_type", $this->filters["AREA_TYPE"], SQLITE3_INTEGER);
        $statement->bindValue(":area", $this->filters["AREA"], SQLITE3_INTEGER);
        $statement->bindValue(":stage", $this->filters["STAGE"], SQLITE3_INTEGER);
        $statement->bindValue(":difficulty", $this->filters["DIFFICULTY"], SQLITE3_INTEGER);
        $statement->bindValue(":date_min", $this->filters["DATE_MIN"], SQLITE3_TEXT);
        $statement->bindValue(":date_max", $this->filters["DATE_MAX"], SQLITE3_TEXT);
        $statement->bindValue(":limit", $this->filters["NUMBER"], 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 runs.
     *
     * @return Run[] Runs to show on the page.
     */
    public function get_runs(){
        return $this->runs;
    }
}
?>