<?php
namespace Patchwork\Split;

if ( ! defined( 'ABSPATH' ) ) exit;

class Activator {

    /** Capability that grants access to the order item manager. */
    const CAP = 'patchwork_split_manage';

    /**
     * Runs on plugin activation.
     * Sets default options so the plugin works out of the box.
     */
    public static function activate(): void {

        // Only set defaults if they don't already exist
        $defaults = [
            'patchwork_split_split_reasons' => implode( "\n", [
                'Out of stock',
                'Damaged item',
                'Incorrect item',
                'Customer request',
                'Fulfilment delay',
                'Other',
            ] ),
            'patchwork_split_unable_reasons' => implode( "\n", [
                'Out of stock',
                'Item discontinued',
                'Cannot fulfil at this time',
                'Customer request',
                'Other',
            ] ),
            'patchwork_split_parent_when_empty' => 'cancel',
            'patchwork_split_shipping_mode'     => 'keep',
            'patchwork_split_restock_unable'    => '1',
            'patchwork_split_email_on_split'    => '0',
            'patchwork_split_email_on_unable'   => '1',
        ];

        foreach ( $defaults as $key => $value ) {
            if ( get_option( $key ) === false ) {
                update_option( $key, $value );
            }
        }

        // Grant the capability to the roles that manage orders by default
        if ( get_option( 'patchwork_split_version' ) === false ) {
            foreach ( [ 'administrator', 'shop_manager' ] as $role_key ) {
                $role = get_role( $role_key );
                if ( $role ) $role->add_cap( self::CAP );
            }
        }

        update_option( 'patchwork_split_version', PATCHWORK_SPLIT_VERSION );
    }

    /**
     * Activation hooks don't run on plugin updates, so compare the stored
     * version on every load and re-run activation when it changes.
     */
    public static function maybe_upgrade(): void {
        if ( get_option( 'patchwork_split_version' ) !== PATCHWORK_SPLIT_VERSION ) {
            self::activate();
        }
    }

    /**
     * Runs on plugin deactivation.
     * We don't delete settings here — that's for uninstall.
     */
    public static function deactivate(): void {}
}