<?php
/**
 * File for the team creation action.
 *
 * Implements an action function to be called from the {@see Controller}.
 *
 * @author Iñigo Valentin <i@inigovalentin.com>
 * @license https://www.gnu.org/licenses/gpl-3.0.en.html GNU General Public License V3
 * @package SWDB
 */

/**
 * Logs the user out and redirects to the login page.
 *
 * Reads the POST parameters looking for the following KEYS:
 *  player: The owner's player ID.
 *  area_type: The area type ID ({@see AREA_TYPE_ID}).
 *  area: The area ID.
 *  stage: Optional, the stage ID.
 *  difficulty: Optional, the difficulty ID ({@see DIFFICULTY_ID})
 *  ids: Unit IDs of the party.
 *  name: Team name.
 *  description: Optional, team description.
 * Validates the data and creates the team in the database.
 * 
 * @return int 201 on success, HTTP error status codes on failure.
 * @category Action
 */
function action(){

    $player = filter_input(INPUT_POST, 'player');
    $area_type = filter_input(INPUT_POST, 'area_type');
    $area = filter_input(INPUT_POST, 'area');
    $stage = filter_input(INPUT_POST, 'stage');
    $difficulty = filter_input(INPUT_POST, 'difficulty');
    if ($difficulty == ''){
        $difficulty = null;
    }
    $ids = filter_input(INPUT_POST, 'ids');
    $name = filter_input(INPUT_POST, 'name');
    $leader_id = filter_input(INPUT_POST, 'leader');
    $total_front = filter_input(INPUT_POST, 'front');
    $description = filter_input(INPUT_POST, 'description');
    $score = 0;
    $id = preg_split("/[\s,]+/", $ids);
    $id_count = sizeof($id);
    if ($name == null || strlen($name) == 0){
        return 400;
    }
    switch ($area_type){
        case AREA_TYPE_ID::SCENARIO:
            if ($stage < 0 || $stage > 7){
                return 400;
            }
            if (!($difficulty == 0 || APPLICATION::valid_id("DIFFICULTY_ID", $difficulty) || $difficulty == DIFFICULTY_ID::EASY)){
                return 400;
            }
            if ($id_count < 1 || $id_count > 4){
                return 400;
            }
            if (!APPLICATION::valid_id("SCENARIO_ID", $area)){
                return 400;
            }
            break;
        case AREA_TYPE_ID::CAIROS_DUNGEON:
            if ($stage < 0){
                return 400;
            }
            if ($stage > 12 && (DUNGEON_ID::GIANTS_KEEP == $area || DUNGEON_ID::DRAGONS_LAIR == $area || DUNGEON_ID::NECROPOLIS == $area)){
                return 400;
            }
            if ($stage > 10 && ($area != DUNGEON_ID::GIANTS_KEEP && $area != DUNGEON_ID::DRAGONS_LAIR && $area != DUNGEON_ID::NECROPOLIS)){
                return 400;
            }
            $difficulty = null;
            if ($id_count < 1 || $id_count > 5){
                return 400;
            }
            if (!APPLICATION::valid_id("DUNGEON_ID", $area)){
                return 400;
            }
            break;
        case AREA_TYPE_ID::RIFT_DUNGEON:
            $stage = null;
            $difficulty = null;
            if ($id_count < 1 || $id_count > 6){
                return 400;
            }
            if (!APPLICATION::valid_id("ELEMENTAL_RIFT_DUNGEON_ID", $area)){
                return 400;
            }
            break;
        case AREA_TYPE_ID::RIFT_RAID:
            if ($stage < 0 || $stage > 5){
                return 400;
            }
            $difficulty = null;
            if ($id_count < 1 || $id_count > 6){
                return 400;
            }
            $area = null;
            break;
        case AREA_TYPE_ID::ARENA:
            $area = null;
            $stage = null;
            $difficulty = null;
            break;
        case AREA_TYPE_ID::GUILD_WAR:
            $area = null;
            $stage = null;
            $difficulty = null;
            break;
        case AREA_TYPE_ID::GUILD_SIEGE:
            $area = null;
            $stage = null;
            $difficulty = null;
            break;
        case AREA_TYPE_ID::TARTARUS_LABYRINTH:
            if ($difficulty != null && !APPLICATION::valid_id("DIFFICULTY_ID", $difficulty)){
                return 400;
            }
            if ($id_count < 1 || $id_count > 5){
                return 400;
            }
            if (!APPLICATION::valid_id("LABYRINTH_STAGES_ID", $stage)){
                return 400;
            }
            break;
        case AREA_TYPE_ID::TRIAL_OF_ASCENSION:
            if ($difficulty != null && $difficulty != DIFFICULTY_ID::NORMAL && $difficulty != DIFFICULTY_ID::HARD){
                $difficulty = null;
            }
            $stage = null;
            if ($id_count < 1 || $id_count > 5){
                return 400;
            }
            $area = null;
            break;
        case AREA_TYPE_ID::DIMENSIONAL_HOLE:
            if ($stage < 0 || $stage > 5){
                return 400;
            }
            $difficulty = null;
            if ($id_count < 1 || $id_count > 4){
                return 400;
            }
            if (!APPLICATION::valid_id("DUNGEON_ID", $area)){
                return 400;
            }
            break;
        case AREA_TYPE_ID::DIMENSIONAL_RIFT:
            if ($difficulty != 0 && $difficulty != DIFFICULTY_ID::NORMAL && $difficulty != DIFFICULTY_ID::HARD){
                return 400;
            }
            $stage = null;
            if ($id_count < 1 || $id_count > 5){
                return 400;
            }
            $area = null;
            break;
        default:
            return 400;
    }
    $unique_id = array_unique($id);
    if ($id_count != sizeof($unique_id)){
        return 400;
    }
    $s = "SELECT CASE WHEN MAX(id) IS NULL THEN 1 ELSE MAX(id) + 1 END AS id FROM team;";
    $q = get_context()->get_db()->query($s);
    $r = $q->fetchArray(SQLITE3_ASSOC);
    $team_id = $r["id"];
    $statement = get_context()->get_db()->prepare("
      INSERT INTO team (
        player,
        id,
        name,
        description,
        area_type,
        area,
        stage,
        difficulty,
        score
      ) VALUES (
        :player,
        :id,
        :name,
        :description,
        :area_type,
        :area,
        :stage,
        :difficulty,
        :score
      );
    ");
    $statement->bindValue(':player', $player, SQLITE3_TEXT);
    $statement->bindValue(':id', $team_id, SQLITE3_TEXT);
    $statement->bindValue(':name', $name, SQLITE3_TEXT);
    $statement->bindValue(':description', $description, SQLITE3_TEXT);
    $statement->bindValue(':area_type', $area_type, SQLITE3_TEXT);
    $statement->bindValue(':area', $area, SQLITE3_TEXT);
    $statement->bindValue(':stage', $stage, SQLITE3_TEXT);
    $statement->bindValue(':difficulty', $difficulty, SQLITE3_TEXT);
    $statement->bindValue(':score', $score, SQLITE3_TEXT);
    $res = $statement->execute();
    if (!$res){
        return 500;
    }

    $j = 0;
    foreach (explode(',', $ids) as $i){
        $leader = 0;
        if ((string) $i == (string) $leader_id){
            $leader = 1;
        }
        $front = 0;
        if ($j < $total_front){
            $front = 1;
        }
        $statement = get_context()->get_db()->prepare("
          INSERT INTO team_unit (team, unit, leader, front)
          VALUES (:team, :unit, :leader, :front);
        ");
        $statement->bindValue(':team', $team_id, SQLITE3_TEXT);
        $statement->bindValue(':unit', $i, SQLITE3_TEXT);
        $statement->bindValue(':leader', $leader, SQLITE3_TEXT);
        $statement->bindValue(':front', $front, SQLITE3_TEXT);
        $statement->execute();
        $j ++;
    }
    return 201;
}