import {defineStore} from "pinia";
import {isNotEmpty} from "@/helpers.js";
import {storeOrder} from "@/utils/ftch.js";
import {useCartStore} from "@/stores/CartStore.js";
import {YA_METRIKA_GOAL} from "@/constants/yaMetrikaGoals.js";
import {useYaMetrikaStore} from "@/stores/yaMetrikaStore.js";
import {useSettingsStore} from "@/stores/SettingsStore.js";
import {usePulseStore} from "@/stores/Pulse.js";
import {TC_PULSE_EVENTS} from "@/constants/tPulseEvents.js";
import {nextTick} from "vue";

/**
 * Helper функция для получения haptic feedback (можно использовать в store)
 * @returns {object} Объект с методами haptic feedback
 */
function getHapticFeedback() {
    const settings = useSettingsStore();
    const haptic = window.Telegram?.WebApp?.HapticFeedback;
    
    // Возвращаем обёртку с методами, которые проверяют настройку при каждом вызове
    return {
        impactOccurred: (style) => {
            const isHapticEnabled = settings.haptic_enabled !== false;
            if (!haptic || !isHapticEnabled || !haptic.impactOccurred) {
                return;
            }
            haptic.impactOccurred(style);
        },
        selectionChanged: () => {
            const isHapticEnabled = settings.haptic_enabled !== false;
            if (!haptic || !isHapticEnabled || !haptic.selectionChanged) {
                return;
            }
            haptic.selectionChanged();
        },
        notificationOccurred: (type) => {
            const isHapticEnabled = settings.haptic_enabled !== false;
            if (!haptic || !isHapticEnabled || !haptic.notificationOccurred) {
                return;
            }
            haptic.notificationOccurred(type);
        },
    };
}

export const useCheckoutStore = defineStore('checkout', {
    state: () => ({
        form: {},
        order: null,
        isLoading: false,
        validationErrors: {},
        errorMessage: '',
    }),

    getters: {
        hasError: (state) => {
            return (field) => isNotEmpty(state.validationErrors[field]);
        },
    },

    actions: {
        async makeOrder() {
            try {
                this.errorMessage = '';
                this.isLoading = true;
                const data = window.Telegram.WebApp.initDataUnsafe;

                console.log("Allows write to PM: ", data.user.allows_write_to_pm);

                if (!data.user.allows_write_to_pm) {
                    console.log("Sending request");
                    const granted = await new Promise(resolve => {
                        window.Telegram.WebApp.requestWriteAccess((granted) => {
                            resolve(granted);
                        });
                    });

                    if (granted) {
                        data.user.allows_write_to_pm = true;
                        console.log('Пользователь разрешил отправку сообщений');
                    } else {
                        alert('Вы не дали разрешение — бот не сможет отправлять вам уведомления');
                    }
                }

                const response = await storeOrder({
                    ...this.form,
                    tgData: data,
                });
                this.order = response.data;

                if (!this.order.id) {
                    console.debug(response.data);
                    throw new Error('Ошибка создания заказа.');
                }

                const yaMetrika = useYaMetrikaStore();
                const pulse = usePulseStore();

                await nextTick(() => {
                    pulse.ingest(TC_PULSE_EVENTS.ORDER_CREATED, {
                        order_id: this.order.id,
                        revenue: this.order?.final_total_numeric,
                        currency: this.order?.currency,
                    });
                    yaMetrika.reachGoal(YA_METRIKA_GOAL.ORDER_CREATED_SUCCESS, {
                        price: this.order?.final_total_numeric,
                        currency: this.order?.currency,
                    });
                    yaMetrika.dataLayerPush({
                        "ecommerce": {
                            "currencyCode": useSettingsStore().currency_code,
                            "purchase": {
                                "actionField": {
                                    "id": this.order.id,
                                    'revenue': this.order?.final_total_numeric,
                                },
                                "products": this.order.products ? this.order.products.map((product, index) => {
                                    return {
                                        id: product.product_id,
                                        name: product.name,
                                        price: product.total_numeric,
                                        position: index,
                                        quantity: product.quantity,
                                    };
                                }) : [],
                            }
                        }
                    });
                });

                const haptic = getHapticFeedback();
                await haptic.notificationOccurred('success');
                await useCartStore().getProducts();
            } catch (error) {
                if (error.response?.status === 422) {
                    this.validationErrors = error.response._data.data;
                } else {
                    console.error('Server error', error);
                }

                const haptic = getHapticFeedback();
                haptic.notificationOccurred('error');

                this.errorMessage = 'Возникла ошибка при создании заказа.';

                throw error;
            } finally {
                this.isLoading = false;
            }
        },

        clearError(field) {
            this.validationErrors[field] = null;
        },
    },
});