export function registerKioskFlow(Alpine) {
    Alpine.data('kioskFlow', (config = {}) => ({
        step: 'select',
        queueId: null,
        customerName: '',
        customerPhone: '',
        ticket: null,
        error: null,
        loading: false,
        issueUrl: config.issueUrl,
        csrf: config.csrf,

        selectQueue(id) {
            this.queueId = id;
            this.step = 'details';
        },

        async issue() {
            if (! this.queueId) return;
            this.loading = true;
            this.error = null;
            try {
                const res = await fetch(this.issueUrl, {
                    method: 'POST',
                    headers: {
                        'Content-Type': 'application/json',
                        'Accept': 'application/json',
                        'X-CSRF-TOKEN': this.csrf,
                    },
                    body: JSON.stringify({
                        queue_id: this.queueId,
                        customer_name: this.customerName || null,
                        customer_phone: this.customerPhone || null,
                    }),
                });
                const data = await res.json();
                if (! res.ok) throw new Error(data.message || 'Could not issue ticket');
                this.ticket = data.data;
                this.step = 'ticket';
            } catch (e) {
                this.error = e.message || 'Something went wrong';
            } finally {
                this.loading = false;
            }
        },

        reset() {
            this.step = 'select';
            this.queueId = null;
            this.customerName = '';
            this.customerPhone = '';
            this.ticket = null;
            this.error = null;
        },
    }));

    Alpine.data('displayBoard', (dataUrl) => ({
        payload: null,
        async poll() {
            try {
                const res = await fetch(dataUrl, { headers: { Accept: 'application/json' } });
                this.payload = await res.json();
                if (this.payload?.announcements?.length && window.speechSynthesis) {
                    const msg = this.payload.announcements[0]?.message;
                    if (msg) {
                        const utter = new SpeechSynthesisUtterance(msg);
                        window.speechSynthesis.speak(utter);
                    }
                }
            } catch (e) {
                console.error('Display poll failed', e);
            }
        },
        init() {
            this.poll();
            setInterval(() => this.poll(), 5000);
        },
    }));

    Alpine.data('mobileTracker', (pollUrl) => ({
        data: null,
        ahead: 0,
        async poll() {
            try {
                const res = await fetch(pollUrl, { headers: { Accept: 'application/json' } });
                const json = await res.json();
                this.data = json.data;
                this.ahead = json.customers_ahead ?? 0;
            } catch (e) {
                console.error('Tracker poll failed', e);
            }
        },
        init() {
            this.poll();
            setInterval(() => this.poll(), 10000);
        },
    }));
}