<?php
namespace Strikewise\Licensing;

defined( 'ABSPATH' ) || exit;

/**
 * Small facade over Freemius, so the rest of the plugin never has to know
 * whether the SDK is configured.
 */
final class Licensing {

	/**
	 * Freemius product ID and public key are entered in strikewise.php.
	 */
	public static function is_configured(): bool {
		return defined( 'STRIKEWISE_FS_ID' ) && '' !== STRIKEWISE_FS_ID;
	}

	/**
	 * Premium features may run: valid license or trial.
	 * On a local development site, STRIKEWISE_DEV_PREMIUM unlocks them for testing,
	 * but only in a build that contains the premium code (not in the generated free version).
	 */
	public static function can_use_premium(): bool {
		if (
			defined( 'STRIKEWISE_DEV_PREMIUM' ) && STRIKEWISE_DEV_PREMIUM
			&& 'local' === wp_get_environment_type()
			&& class_exists( \Strikewise\Premium\Premium::class )
		) {
			return true;
		}

		return (bool) strikewise_fs()->can_use_premium_code();
	}

	/**
	 * Number of sites the license covers: null for unlimited, 0 without a license.
	 * The local development switch counts as an agency license.
	 */
	public static function license_sites(): ?int {
		if ( defined( 'STRIKEWISE_DEV_PREMIUM' ) && STRIKEWISE_DEV_PREMIUM && 'local' === wp_get_environment_type() ) {
			return 25;
		}
		if ( ! self::is_configured() || ! method_exists( strikewise_fs(), '_get_license' ) ) {
			return 0;
		}
		$license = strikewise_fs()->_get_license();
		if ( ! is_object( $license ) ) {
			return 0;
		}
		return isset( $license->quota ) && null !== $license->quota ? (int) $license->quota : null;
	}

	/**
	 * The agency cockpit needs a license for at least 5 shops (Business or Agency).
	 * During the trial there is no license yet, so agencies can try it out.
	 */
	public static function cockpit_allowed(): bool {
		if ( ! self::can_use_premium() ) {
			return false;
		}
		if ( strikewise_fs()->is_trial() ) {
			return true;
		}
		$sites = self::license_sites();
		return null === $sites || $sites >= 5;
	}

	/**
	 * Whether to show upgrade hints: Freemius is set up and the shop has no license.
	 */
	public static function show_upsell(): bool {
		$show = self::is_configured() && ! self::can_use_premium() && strikewise_fs()->is_not_paying();

		/**
		 * Filters whether Strikewise shows upgrade hints (banner, dashboard widget, settings).
		 *
		 * @param bool $show
		 */
		return (bool) apply_filters( 'strikewise_show_upsell', $show );
	}

	public static function upgrade_url(): string {
		return self::is_configured() ? (string) strikewise_fs()->get_upgrade_url() : '';
	}

	public static function trial_url(): string {
		return self::is_configured() ? (string) strikewise_fs()->get_trial_url() : '';
	}
}