<?php
namespace DayTidy\Modules\Notifications;

class Registry
{
    const TYPE_EMAIL = 'email';

    const CONTEXT_ADMIN = 'admin';
    const CONTEXT_OFFERING_HOST = 'offering_host';
    const CONTEXT_PRIMARY_BOOKER = 'primary_booker';
    const CONTEXT_REGISTRANT = 'registrant';
    const CONTEXT_CUSTOM = 'custom';

    const TRIGGER_BOOKING_CREATED = 'booking_created';
    const TRIGGER_BOOKING_CONFIRMED = 'booking_confirmed';
    const TRIGGER_BOOKING_DECLINED = 'booking_declined';
    const TRIGGER_BOOKING_CANCELLED = 'booking_cancelled';
    const TRIGGER_BOOKING_COMPLETED = 'booking_completed';
    const TRIGGER_BOOKING_PAID = 'booking_paid';
    const TRIGGER_BOOKING_PAYMENT_FAILED = 'booking_payment_failed';
    const TRIGGER_BOOKING_REFUNDED = 'booking_refunded';
    const TRIGGER_BOOKING_RESCHEDULED = 'booking_rescheduled';
    const TRIGGER_BOOKING_REMINDER_BEFORE_START = 'booking_reminder_before_start';
    const TRIGGER_CUSTOMER_PORTAL_VERIFICATION_CODE = 'customer_portal_verification_code';

    /**
     * @return mixed[]
     */
    public static function types(): array
    {
        return apply_filters('DayTidy/F__DayTidy/Notifications__types/types', [
            self::TYPE_EMAIL => [
                'label' => esc_html__('Email', 'daytidy'),
                'enabled' => true,
            ],
        ]);
    }

    /**
     * @return mixed[]
     */
    public static function triggers(): array
    {
        $all = [
            self::TRIGGER_BOOKING_CREATED => [
                'label' => esc_html__('Booking Created', 'daytidy'),
                'contexts' => [
                    self::CONTEXT_ADMIN,
                    self::CONTEXT_OFFERING_HOST,
                    self::CONTEXT_PRIMARY_BOOKER,
                    self::CONTEXT_REGISTRANT,
                    self::CONTEXT_CUSTOM,
                ],
            ],
            self::TRIGGER_BOOKING_CONFIRMED => [
                'label' => esc_html__('Booking Confirmed', 'daytidy'),
                'contexts' => [
                    self::CONTEXT_ADMIN,
                    self::CONTEXT_OFFERING_HOST,
                    self::CONTEXT_PRIMARY_BOOKER,
                    self::CONTEXT_REGISTRANT,
                    self::CONTEXT_CUSTOM,
                ],
            ],
            self::TRIGGER_BOOKING_DECLINED => [
                'label' => esc_html__('Booking Declined', 'daytidy'),
                'contexts' => [
                    self::CONTEXT_ADMIN,
                    self::CONTEXT_OFFERING_HOST,
                    self::CONTEXT_PRIMARY_BOOKER,
                    self::CONTEXT_REGISTRANT,
                    self::CONTEXT_CUSTOM,
                ],
            ],
            self::TRIGGER_BOOKING_CANCELLED => [
                'label' => esc_html__('Booking Cancelled', 'daytidy'),
                'contexts' => [
                    self::CONTEXT_ADMIN,
                    self::CONTEXT_OFFERING_HOST,
                    self::CONTEXT_PRIMARY_BOOKER,
                    self::CONTEXT_REGISTRANT,
                    self::CONTEXT_CUSTOM,
                ],
            ],
            self::TRIGGER_BOOKING_COMPLETED => [
                'label' => esc_html__('Booking Completed', 'daytidy'),
                'contexts' => [
                    self::CONTEXT_ADMIN,
                    self::CONTEXT_OFFERING_HOST,
                    self::CONTEXT_PRIMARY_BOOKER,
                    self::CONTEXT_REGISTRANT,
                    self::CONTEXT_CUSTOM,
                ],
            ],
            self::TRIGGER_BOOKING_PAID => [
                'label' => esc_html__('Booking Paid', 'daytidy'),
                'contexts' => [
                    self::CONTEXT_ADMIN,
                    self::CONTEXT_OFFERING_HOST,
                    self::CONTEXT_PRIMARY_BOOKER,
                    self::CONTEXT_CUSTOM,
                ],
            ],
            self::TRIGGER_BOOKING_PAYMENT_FAILED => [
                'label' => esc_html__('Booking Payment Failed', 'daytidy'),
                'contexts' => [
                    self::CONTEXT_ADMIN,
                    self::CONTEXT_OFFERING_HOST,
                    self::CONTEXT_PRIMARY_BOOKER,
                    self::CONTEXT_CUSTOM,
                ],
            ],
            self::TRIGGER_BOOKING_REFUNDED => [
                'label' => esc_html__('Booking Refunded', 'daytidy'),
                'contexts' => [
                    self::CONTEXT_ADMIN,
                    self::CONTEXT_OFFERING_HOST,
                    self::CONTEXT_PRIMARY_BOOKER,
                    self::CONTEXT_CUSTOM,
                ],
            ],
            self::TRIGGER_BOOKING_RESCHEDULED => [
                'label' => esc_html__('Booking Rescheduled', 'daytidy'),
                'contexts' => [
                    self::CONTEXT_ADMIN,
                    self::CONTEXT_OFFERING_HOST,
                    self::CONTEXT_PRIMARY_BOOKER,
                    self::CONTEXT_REGISTRANT,
                    self::CONTEXT_CUSTOM,
                ],
            ],
            self::TRIGGER_BOOKING_REMINDER_BEFORE_START => [
                'label' => esc_html__('Booking Reminder Before Start', 'daytidy'),
                'contexts' => [
                    self::CONTEXT_ADMIN,
                    self::CONTEXT_OFFERING_HOST,
                    self::CONTEXT_PRIMARY_BOOKER,
                    self::CONTEXT_REGISTRANT,
                    self::CONTEXT_CUSTOM,
                ],
            ],
            self::TRIGGER_CUSTOMER_PORTAL_VERIFICATION_CODE => [
                'label' => esc_html__('Customer Portal Verification Code', 'daytidy'),
                'contexts' => [
                    self::CONTEXT_PRIMARY_BOOKER,
                ],
            ],
        ];

        return apply_filters('DayTidy/F__DayTidy/Notifications__triggers/triggers', $all);
    }

    public static function allowsExtraRecipients(string $trigger): bool
    {
        $allowed = $trigger !== self::TRIGGER_CUSTOMER_PORTAL_VERIFICATION_CODE;

        return (bool) apply_filters(
            'DayTidy/F__DayTidy/Notifications__allows_extra_recipients/allowed',
            $allowed,
            $trigger
        );
    }

    /**
     * @return string[]
     */
    public static function triggerOptions(): array
    {
        $options = [];
        foreach (self::triggers() as $key => $trigger) $options[$key] = $trigger['label'];

        return $options;
    }

    /**
     * @return mixed[]
     */
    public static function contexts(?string $trigger = null): array
    {
        $contexts = apply_filters('DayTidy/F__DayTidy/Notifications__contexts/contexts', [
            self::CONTEXT_ADMIN => [
                'label' => esc_html__('Admin', 'daytidy'),
                'description' => esc_html__('Website administrator email.', 'daytidy'),
            ],
            self::CONTEXT_OFFERING_HOST => [
                'label' => esc_html__('Offering Host', 'daytidy'),
                'description' => esc_html__('Hosts assigned to the booked offering.', 'daytidy'),
            ],
            self::CONTEXT_PRIMARY_BOOKER => [
                'label' => esc_html__('Primary Booker', 'daytidy'),
                'description' => esc_html__('First person who completed the booking form.', 'daytidy'),
            ],
            self::CONTEXT_REGISTRANT => [
                'label' => esc_html__('Registrant', 'daytidy'),
                'description' => esc_html__('Each participant with an email address.', 'daytidy'),
            ],
            self::CONTEXT_CUSTOM => [
                'label' => esc_html__('Custom Recipients', 'daytidy'),
                'description' => esc_html__('Users, roles, or custom email addresses selected by the admin.', 'daytidy'),
            ],
        ], $trigger);

        if (!$trigger) return $contexts;

        $triggers = self::triggers();
        $allowed = $triggers[$trigger]['contexts'] ?? array_keys($contexts);

        return array_intersect_key($contexts, array_flip($allowed));
    }

    /**
     * @return string[]
     */
    public static function collectionKeys(): array
    {
        return ['participant_list', 'option_list', 'session_list'];
    }

    /**
     * @return mixed[]
     */
    public static function placeholders(): array
    {
        return apply_filters('DayTidy/F__DayTidy/Notifications__placeholders/placeholders', [
            esc_html__('General', 'daytidy') => [
                'site_name' => esc_html__('Website name', 'daytidy'),
                'site_url' => esc_html__('Website URL', 'daytidy'),
                'admin_email' => esc_html__('Website admin email', 'daytidy'),
                'date' => esc_html__('Current date', 'daytidy'),
                'time' => esc_html__('Current time', 'daytidy'),
                'datetime' => esc_html__('Current session', 'daytidy'),
            ],
            esc_html__('Booking', 'daytidy') => [
                'booking_id' => esc_html__('Booking post ID', 'daytidy'),
                'booking_ref' => esc_html__('Booking reference', 'daytidy'),
                'booking_email' => esc_html__('Booker email', 'daytidy'),
                'booking_first_name' => esc_html__('Booker first name', 'daytidy'),
                'booking_last_name' => esc_html__('Booker last name', 'daytidy'),
                'booking_total' => esc_html__('Booking total', 'daytidy'),
                'booking_payable' => esc_html__('Booking payable amount', 'daytidy'),
                'booking_gateway' => esc_html__('Payment gateway name', 'daytidy'),
                'booking_gateway_ref_id' => esc_html__('Gateway reference ID', 'daytidy'),
                'booking_status' => esc_html__('Booking status', 'daytidy'),
                'booking_payment_status' => esc_html__('Payment status', 'daytidy'),
                'booking_coupon' => esc_html__('Coupon code', 'daytidy'),
                'booking_portal_url' => esc_html__('Customer portal booking URL', 'daytidy'),
                'booking_verification_code' => esc_html__('Customer portal verification code', 'daytidy'),
                'booking_verification_code_expiry_minutes' => esc_html__('Customer portal verification code expiry minutes', 'daytidy'),
            ],
            esc_html__('Offering', 'daytidy') => [
                'offering_id' => esc_html__('Offering post ID', 'daytidy'),
                'offering_title' => esc_html__('Offering title', 'daytidy'),
                'offering_link' => esc_html__('Offering frontend link', 'daytidy'),
                'offering_admin_link' => esc_html__('Offering admin edit link', 'daytidy'),
            ],
            esc_html__('Recipient', 'daytidy') => [
                'recipient_email' => esc_html__('Current recipient email', 'daytidy'),
                'recipient_name' => esc_html__('Current recipient name', 'daytidy'),
                'recipient_context' => esc_html__('Current recipient type', 'daytidy'),
            ],
            esc_html__('Collections', 'daytidy') => [
                'participant_list' => esc_html__('Rendered participant list', 'daytidy'),
                'option_list' => esc_html__('Rendered option list', 'daytidy'),
                'session_list' => esc_html__('Rendered session list', 'daytidy'),
            ],
            esc_html__('Collection Items', 'daytidy') => [
                'participant_name' => esc_html__('Participant name inside participant list', 'daytidy'),
                'participant_email' => esc_html__('Participant email inside participant list', 'daytidy'),
                'participant_fields' => esc_html__('Participant fields inside participant list', 'daytidy'),
                'option_title' => esc_html__('Option title inside option list', 'daytidy'),
                'option_quantity' => esc_html__('Option quantity inside option list', 'daytidy'),
                'option_price' => esc_html__('Option price inside option list', 'daytidy'),
                'session_item' => esc_html__('Formatted session inside session list', 'daytidy'),
                'date_item' => esc_html__('Formatted date inside session list', 'daytidy'),
                'time_item' => esc_html__('Formatted time inside session list', 'daytidy'),
            ],
        ]);
    }
}