<?php

declare(strict_types=1);

/**
 * -------------------------------------------------------------------------
 * UrBackup plugin for GLPI
 * -------------------------------------------------------------------------
 */

use Glpi\Asset\AssetDefinitionManager;
use GlpiPlugin\Urbackup\Capacity\UrBackupCapacity;
use GlpiPlugin\Urbackup\Config;
use GlpiPlugin\Urbackup\Profile;

if (!defined('GLPI_ROOT')) {
    die(__('Sorry. You cannot access this file directly.', 'urbackup'));
}

/**
 * Install or update plugin database schema and default data.
 *
 * @return bool
 */
function plugin_urbackup_install_process(): bool
{
    $migration = new Migration(PLUGIN_URBACKUP_VERSION);

    $migration->displayMessage(__('UrBackup plugin installation', 'urbackup'));

    plugin_urbackup_install_create_initial_schema($migration);

    plugin_urbackup_install_update_configs_table($migration);

    // Convert old assettype configurations to GLPI 11 capacity system
    plugin_urbackup_install_convert_assettypes_to_capacities($migration);

    plugin_urbackup_install_update_servers_table($migration);
    plugin_urbackup_install_update_serverassets_table($migration);

    // Drop tables that are no longer used (replaced by Profile::registerRights() and Capacity system)
    plugin_urbackup_install_drop_legacy_tables($migration);

    $migration->executeMigration();

    Config::ensureDefaultConfiguration();
    Profile::installRights();

    return true;
}

/**
 * Create initial database schema from SQL file.
 *
 * @param Migration $migration Migration instance
 *
 * @return void
 */
function plugin_urbackup_install_create_initial_schema(Migration $migration): void
{
    global $DB;

    $required_tables = [
        'glpi_plugin_urbackup_configs',
        'glpi_plugin_urbackup_servers',
        'glpi_plugin_urbackup_serverassets',
    ];

    $missing_table_found = false;

    foreach ($required_tables as $table) {
        if (!$DB->tableExists($table)) {
            $missing_table_found = true;
            break;
        }
    }

    if (!$missing_table_found) {
        return;
    }

    $migration->displayMessage(__('Creating UrBackup plugin database schema', 'urbackup'));

    $db_file = PLUGIN_URBACKUP_DIR . '/install/mysql/plugin_urbackup-empty.sql';

    if (!file_exists($db_file)) {
        $migration->displayMessage(
            sprintf(
                __('Database schema file not found: %s', 'urbackup'),
                $db_file
            )
        );

        return;
    }

    if (!$DB->runFile($db_file)) {
        $migration->displayMessage(__('Error while creating UrBackup plugin database schema', 'urbackup'));
    }
}

/**
 * Update configs table.
 *
 * @param Migration $migration Migration instance
 *
 * @return void
 */
function plugin_urbackup_install_update_configs_table(Migration $migration): void
{
    global $DB;

    $table = 'glpi_plugin_urbackup_configs';

    if (!$DB->tableExists($table)) {
        return;
    }

    $migration->addField($table, 'name', 'string', [
        'value' => '',
        'after' => 'id',
    ]);

    $migration->addField($table, 'value', 'text', [
        'after' => 'name',
    ]);

    $migration->addField($table, 'date_creation', 'timestamp');
    $migration->addField($table, 'date_mod', 'timestamp');

    $migration->addKey($table, 'name');
}

/**
 * Update assettypes table.
 *
 * @param Migration $migration Migration instance
 *
 * @return void
 */
function plugin_urbackup_install_update_assettypes_table(Migration $migration): void
{
    global $DB;

    $table = 'glpi_plugin_urbackup_assettypes';

    if (!$DB->tableExists($table)) {
        return;
    }

    $migration->addField($table, 'itemtype', 'string', [
        'value' => '',
        'after' => 'id',
    ]);

    $migration->addField($table, 'is_active', 'bool', [
        'value' => 0,
        'after' => 'itemtype',
    ]);

    $migration->addField($table, 'date_creation', 'timestamp');
    $migration->addField($table, 'date_mod', 'timestamp');

    $migration->addKey($table, 'itemtype');
    $migration->addKey($table, 'is_active');
}

/**
 * Update servers table.
 *
 * @param Migration $migration Migration instance
 *
 * @return void
 */
function plugin_urbackup_install_update_servers_table(Migration $migration): void
{
    global $DB;

    $table = 'glpi_plugin_urbackup_servers';

    if (!$DB->tableExists($table)) {
        return;
    }

    $migration->addField($table, 'entities_id', 'integer', [
        'value' => 0,
        'after' => 'id',
    ]);

    $migration->addField($table, 'is_recursive', 'bool', [
        'value' => 0,
        'after' => 'entities_id',
    ]);

    $migration->addField($table, 'name', 'string', [
        'value' => '',
        'after' => 'is_recursive',
    ]);

    $migration->addField($table, 'locations_id', 'integer', [
        'value' => 0,
        'after' => 'name',
    ]);

    $migration->addField($table, 'ip_address', 'string', [
        'value' => '',
        'after' => 'locations_id',
    ]);

    $migration->addField($table, 'port', 'integer', [
        'value' => 55414,
        'after' => 'ip_address',
    ]);

    $migration->addField($table, 'protocol', 'string', [
        'value' => 'http',
        'after' => 'port',
    ]);

    $migration->addField($table, 'server_version', 'string', [
        'after' => 'protocol',
    ]);

    $migration->addField($table, 'api_username', 'string', [
        'after' => 'server_version',
    ]);

    $migration->addField($table, 'api_password', 'text', [
        'after' => 'api_username',
    ]);

    $migration->addField($table, 'ignore_ssl', 'bool', [
        'value' => 0,
        'after' => 'api_password',
    ]);

    $migration->addField($table, 'is_active', 'bool', [
        'value' => 1,
        'after' => 'ignore_ssl',
    ]);

    $migration->addField($table, 'last_api_status', 'bool', [
        'value' => 0,
        'after' => 'is_active',
    ]);

    $migration->addField($table, 'last_api_message', 'text', [
        'after' => 'last_api_status',
    ]);

    $migration->addField($table, 'last_api_check', 'timestamp', [
        'after' => 'last_api_message',
    ]);

    $migration->addField($table, 'comment', 'text', [
        'after' => 'last_api_check',
    ]);

    $migration->addField($table, 'date_creation', 'timestamp');
    $migration->addField($table, 'date_mod', 'timestamp');

    $migration->addKey($table, 'name');
    $migration->addKey($table, 'entities_id');
    $migration->addKey($table, 'locations_id');
    $migration->addKey($table, 'is_active');
    $migration->addKey($table, ['locations_id', 'is_active'], 'location_active');
}

/**
 * Update serverassets table.
 *
 * @param Migration $migration Migration instance
 *
 * @return void
 */
function plugin_urbackup_install_update_serverassets_table(Migration $migration): void
{
    global $DB;

    $table = 'glpi_plugin_urbackup_serverassets';

    if (!$DB->tableExists($table)) {
        return;
    }

    $migration->addField($table, 'plugin_urbackup_servers_id', 'integer', [
        'value' => 0,
        'after' => 'id',
    ]);

    $migration->addField($table, 'itemtype', 'string', [
        'value' => '',
        'after' => 'plugin_urbackup_servers_id',
    ]);

    $migration->addField($table, 'items_id', 'integer', [
        'value' => 0,
        'after' => 'itemtype',
    ]);

    $migration->addField($table, 'date_creation', 'timestamp');
    $migration->addField($table, 'date_mod', 'timestamp');

    $migration->addKey($table, 'plugin_urbackup_servers_id');
    $migration->addKey($table, ['itemtype', 'items_id'], 'item');
}

/**
 * Drop legacy tables that are no longer used.
 *
 * @param Migration $migration Migration instance
 *
 * @return void
 */
function plugin_urbackup_install_drop_legacy_tables(Migration $migration): void
{
    global $DB;

    // glpi_plugin_urbackup_profiles was replaced by Profile::registerRights() in 0.5.0
    $table = 'glpi_plugin_urbackup_profiles';
    if ($DB->tableExists($table)) {
        $migration->displayMessage(__('Dropping legacy glpi_plugin_urbackup_profiles table', 'urbackup'));
        $DB->queryOrDie("DROP TABLE IF EXISTS `$table`");
    }

    // glpi_plugin_urbackup_assettypes was replaced by GLPI 11 Capacity system in 0.6.0
    $table2 = 'glpi_plugin_urbackup_assettypes';
    if ($DB->tableExists($table2)) {
        $migration->displayMessage(__('Dropping legacy glpi_plugin_urbackup_assettypes table', 'urbackup'));
        $DB->queryOrDie("DROP TABLE IF EXISTS `$table2`");
    }

    $migration->displayMessage(__('Legacy tables dropped successfully', 'urbackup'));
}

/**
 * Convert old glpi_plugin_urbackup_assettypes to GLPI 11 capacity system
 * and auto-enable UrBackup capacity on all existing Asset Definitions.
 *
 * After this migration, admins can disable UrBackup per Asset Definition
 * via the native Capacities UI (Config > Asset definitions > Capacities).
 *
 * @param Migration $migration Migration instance
 *
 * @return void
 */
function plugin_urbackup_install_convert_assettypes_to_capacities(Migration $migration): void
{
    global $DB;

    $table = Config::getAssetTypesTable();
    if (!$DB->tableExists($table)) {
        return;
    }

    // Check if is_default column exists
    $has_is_default = false;
    foreach ($DB->listFields($table) as $col) {
        if ($col['Field'] === 'is_default') {
            $has_is_default = true;
            break;
        }
    }

    // Auto-enable UrBackup capacity on ALL Asset Definitions
    // so the tab appears out of the box for any asset type.
    if (class_exists(AssetDefinitionManager::class)) {
        try {
            $manager = AssetDefinitionManager::getInstance();
            foreach ($manager->getDefinitions() as $definition) {
                if (!$definition->hasCapacity(UrBackupCapacity::class)) {
                    $definition->enableCapacity(UrBackupCapacity::class);
                }
            }
        } catch (\Throwable $e) {
            $migration->displayMessage(
                __('Error enabling UrBackup capacity on definitions: ', 'urbackup') . $e->getMessage()
            );
        }
    }

    // Drop is_default column (no longer needed in capacity system)
    if ($has_is_default) {
        $migration->dropField($table, 'is_default');
    }
}