<?php
/*
 *
 * OGP - Open Game Panel
 * Copyright (C) 2008 - 2018 The OGP Development Team
 *
 * http://www.opengamepanel.org/
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 */
// Module general information
$module_title = "Steam Workshop";
$module_version = "2.3";
$db_version = 2;
$module_required = TRUE;
$module_menus = array();

// -----------------------------------------------------------------------
// $install_queries[0]  – executed for FRESH installs (all keys run).
//                        Contains the full v2 schema with every column.
// $install_queries[2]  – executed when upgrading an existing v1 install
//                        to v2 (ALTER TABLE + new settings table).
// $db_version = 2  (v1 = original release; v2 = this rewrite).
// -----------------------------------------------------------------------
$install_queries = array();

// Full schema for fresh installs (includes every column from all versions).
$install_queries[0] = array(
    "CREATE TABLE IF NOT EXISTS `".OGP_DB_PREFIX."workshop_game_profiles` (
      `id`                    INT           NOT NULL AUTO_INCREMENT,
      `game_key`              VARCHAR(100)  NOT NULL,
      `game_name`             VARCHAR(255)  NOT NULL,
      `steam_app_id`          VARCHAR(32)   NOT NULL DEFAULT '',
      `workshop_app_id`       VARCHAR(32)   NOT NULL,
      `steam_login_required`  TINYINT(1)    NOT NULL DEFAULT 0,
      `steamcmd_login_mode`   ENUM('anonymous','account') NOT NULL DEFAULT 'anonymous',
      `steamcmd_path`         VARCHAR(512)  NOT NULL DEFAULT '',
      `supported_os`          SET('linux','windows') NOT NULL DEFAULT 'linux',
      `cache_path_template`   TEXT          NOT NULL,
      `install_path_template` TEXT          NOT NULL,
      `folder_naming_format`  ENUM('@%mod_name%','@%workshop_id%','custom') NOT NULL DEFAULT '@%workshop_id%',
      `folder_name_template`  VARCHAR(255)  NOT NULL DEFAULT '@%workshop_id%',
      `mod_launch_param`      VARCHAR(512)  NOT NULL DEFAULT '',
      `mod_separator`         ENUM('semicolon','comma','space') NOT NULL DEFAULT 'semicolon',
      `copy_method`           ENUM('copy','rsync','symlink') NOT NULL DEFAULT 'rsync',
      `copy_keys`             TINYINT(1)    NOT NULL DEFAULT 0,
      `key_source_path`       TEXT          NULL,
      `key_dest_path`         TEXT          NULL,
      `pre_update_script`     TEXT          NULL,
      `install_script`        TEXT          NULL,
      `post_update_script`    TEXT          NULL,
      `config_file_template`  TEXT          NULL,
      `launch_param_template` TEXT          NULL,
      `requires_restart`      TINYINT(1)    NOT NULL DEFAULT 1,
      `validation_notes`      TEXT          NULL,
      `enabled`               TINYINT(1)    NOT NULL DEFAULT 1,
      `created_at`            DATETIME      NOT NULL DEFAULT CURRENT_TIMESTAMP,
      `updated_at`            DATETIME      NULL,
      PRIMARY KEY (`id`),
      UNIQUE KEY `uniq_game_key` (`game_key`)
    ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci",

    "CREATE TABLE IF NOT EXISTS `".OGP_DB_PREFIX."workshop_cache` (
      `id`               INT          NOT NULL AUTO_INCREMENT,
      `agent_id`         INT          NOT NULL,
      `os_type`          ENUM('linux','windows') NOT NULL DEFAULT 'linux',
      `workshop_app_id`  VARCHAR(32)  NOT NULL,
      `workshop_id`      VARCHAR(64)  NOT NULL,
      `title`            VARCHAR(255) NULL,
      `cache_path`       TEXT         NOT NULL,
      `status`           ENUM('missing','cached','failed') NOT NULL DEFAULT 'missing',
      `last_checked`     DATETIME     NULL,
      `last_updated`     DATETIME     NULL,
      `last_error`       TEXT         NULL,
      PRIMARY KEY (`id`),
      UNIQUE KEY `uniq_agent_workshop` (`agent_id`, `workshop_app_id`, `workshop_id`)
    ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci",

    "CREATE TABLE IF NOT EXISTS `".OGP_DB_PREFIX."server_workshop_mods` (
      `id`               INT          NOT NULL AUTO_INCREMENT,
      `home_id`          INT          NOT NULL,
      `agent_id`         INT          NOT NULL,
      `profile_id`       INT          NOT NULL,
      `workshop_app_id`  VARCHAR(32)  NOT NULL,
      `workshop_id`      VARCHAR(64)  NOT NULL,
      `title`            VARCHAR(255) NULL,
      `custom_folder`    VARCHAR(255) NOT NULL DEFAULT '',
      `enabled`          TINYINT(1)   NOT NULL DEFAULT 1,
      `install_path`     TEXT         NOT NULL,
      `load_order`       INT          NOT NULL DEFAULT 0,
      `installed_at`     DATETIME     NOT NULL DEFAULT CURRENT_TIMESTAMP,
      `updated_at`       DATETIME     NULL,
      PRIMARY KEY (`id`),
      UNIQUE KEY `uniq_home_workshop` (`home_id`, `workshop_id`)
    ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci",

    "CREATE TABLE IF NOT EXISTS `".OGP_DB_PREFIX."server_workshop_settings` (
      `home_id`              INT          NOT NULL,
      `workshop_enabled`     TINYINT(1)   NOT NULL DEFAULT 0,
      `profile_id`           INT          NULL,
      `update_mode`          ENUM('manual','scheduled','on_restart') NOT NULL DEFAULT 'manual',
      `restart_behavior`     ENUM('none','queue','stop_update_start') NOT NULL DEFAULT 'none',
      `update_queued`        TINYINT(1)   NOT NULL DEFAULT 0,
      `last_update_status`   VARCHAR(20)  NOT NULL DEFAULT '',
      `last_update_error`    TEXT         NULL,
      `last_update_time`     DATETIME     NULL,
      `last_success_time`    DATETIME     NULL,
      `updated_at`           DATETIME     NULL,
      PRIMARY KEY (`home_id`)
    ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci"
);

// Migration: upgrade existing v1 installs to v2 schema.
//
// ADD COLUMN IF NOT EXISTS is not supported in MySQL 5.7 (MariaDB only).
// Each column addition is therefore performed via a PHP closure that:
//   1. Queries INFORMATION_SCHEMA.COLUMNS to check whether the column exists.
//   2. Runs ALTER TABLE ADD COLUMN only when it does not exist.
// This makes the migration safe to run multiple times without errors.
// OGP_DB_PREFIX in SQL strings is replaced at runtime by the panel DB wrapper.
$install_queries[2] = array(

    // Add new columns to workshop_game_profiles one-by-one (MySQL 5.7 safe).
    function($db) {
        // 'OGP_DB_PREFIX' is the literal token that $db->query() / $db->resultQuery()
        // replaces with the configured table prefix (e.g. 'gsp_') via str_replace at
        // runtime.  Using it directly in string literals below is intentional and is
        // the same mechanism used everywhere else in the panel.
        $tbl_profiles = 'OGP_DB_PREFIXworkshop_game_profiles';

        // column_name => column definition (no AFTER clause for portability)
        // $col is always a value from this hardcoded array — not from user input.
        $columns = array(
            'steam_app_id'         => "VARCHAR(32)  NOT NULL DEFAULT ''",
            'steam_login_required' => "TINYINT(1)   NOT NULL DEFAULT 0",
            'steamcmd_login_mode'  => "ENUM('anonymous','account') NOT NULL DEFAULT 'anonymous'",
            'steamcmd_path'        => "VARCHAR(512) NOT NULL DEFAULT ''",
            'folder_naming_format' => "ENUM('@%mod_name%','@%workshop_id%','custom') NOT NULL DEFAULT '@%workshop_id%'",
            'mod_launch_param'     => "VARCHAR(512) NOT NULL DEFAULT ''",
            'mod_separator'        => "ENUM('semicolon','comma','space') NOT NULL DEFAULT 'semicolon'",
            'copy_keys'            => "TINYINT(1)   NOT NULL DEFAULT 0",
            'key_source_path'      => "TEXT         NULL",
            'key_dest_path'        => "TEXT         NULL",
            'pre_update_script'    => "TEXT         NULL",
            'post_update_script'   => "TEXT         NULL",
            'validation_notes'     => "TEXT         NULL",
        );
        foreach ($columns as $col => $def) {
            // INFORMATION_SCHEMA.COLUMNS always returns one row for COUNT(*),
            // so resultQuery returns an array (never FALSE for this query form).
            // Escape $col when embedding it in the SQL string literal.
            $safe_col = $db->realEscapeSingle($col);
            $check = $db->resultQuery(
                "SELECT COUNT(*) AS n
                   FROM information_schema.COLUMNS
                  WHERE TABLE_SCHEMA = DATABASE()
                    AND TABLE_NAME   = '" . $tbl_profiles . "'
                    AND COLUMN_NAME  = '" . $safe_col . "'"
            );
            // If n > 0 the column already exists; skip it.
            if ($check !== false && isset($check[0]['n']) && (int)$check[0]['n'] > 0) {
                continue;
            }
            // $col is backtick-quoted so it is safe as an identifier.
            if (!$db->query(
                "ALTER TABLE `" . $tbl_profiles . "`
                 ADD COLUMN `" . $col . "` " . $def
            )) {
                return false;
            }
        }
        return true;
    },

    // Add custom_folder to server_workshop_mods (MySQL 5.7 safe).
    function($db) {
        // See note above: 'OGP_DB_PREFIX' is replaced by str_replace at runtime.
        $tbl_mods = 'OGP_DB_PREFIXserver_workshop_mods';
        $check = $db->resultQuery(
            "SELECT COUNT(*) AS n
               FROM information_schema.COLUMNS
              WHERE TABLE_SCHEMA = DATABASE()
                AND TABLE_NAME   = '" . $tbl_mods . "'
                AND COLUMN_NAME  = 'custom_folder'"
        );
        if ($check !== false && isset($check[0]['n']) && (int)$check[0]['n'] > 0) {
            return true; // Column already exists.
        }
        return (bool)$db->query(
            "ALTER TABLE `" . $tbl_mods . "`
             ADD COLUMN `custom_folder` VARCHAR(255) NOT NULL DEFAULT ''"
        );
    },

    // New server-level settings table (CREATE IF NOT EXISTS is safe to re-run).
    "CREATE TABLE IF NOT EXISTS `".OGP_DB_PREFIX."server_workshop_settings` (
      `home_id`              INT          NOT NULL,
      `workshop_enabled`     TINYINT(1)   NOT NULL DEFAULT 0,
      `profile_id`           INT          NULL,
      `update_mode`          ENUM('manual','scheduled','on_restart') NOT NULL DEFAULT 'manual',
      `restart_behavior`     ENUM('none','queue','stop_update_start') NOT NULL DEFAULT 'none',
      `update_queued`        TINYINT(1)   NOT NULL DEFAULT 0,
      `last_update_status`   VARCHAR(20)  NOT NULL DEFAULT '',
      `last_update_error`    TEXT         NULL,
      `last_update_time`     DATETIME     NULL,
      `last_success_time`    DATETIME     NULL,
      `updated_at`           DATETIME     NULL,
      PRIMARY KEY (`home_id`)
    ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci"
);