/* Import modules. */
import { defineStore } from 'pinia'

/* Set constants. */
const TICKER_INTERVAL = 30000

/**
 * System Store
 */
export const useSystemStore = defineStore('system', {
    state: () => ({
        /* Set constants. */
        ONE_SAT: BigInt('1'),
        ONE_NEX: BigInt('100'),
        ONE_KEX: BigInt('100000'),
        ONE_MEX: BigInt('100000000'),
        ONE_META: BigInt('1000000000000000000'),

        /* Set Nexa Exchange API endpoint. */
        NEXA_EXCHANGE_ENDPOINT: 'https://nexa.exchange',

        /* Initialize notifications. */
        _notif: {
            isShowing: false,
            icon: null,
            title: null,
            description: null,
            delay: 7000,
        },

        /**
         * Application Starts
         */
        _appStarts: 0,

        /**
         * Application Version
         */
        _appVersion: null,

        /**
         * Flags
         *
         * 1. Dark mode
         * 2. Unconfirmed transactions
         */
        _flags: null,

        /**
         * Locale
         *
         * Controls the localization language.
         * (default is english)
         */
        _locale: null,

        /**
         * Notices
         *
         * System notices that nag/remind the user of some important action or
         * information; which can be permanently disabled ("Do Not Show Again")
         * via checkbox and confirmation.
         *
         * NOTE: Unique 1-byte (hex) codes (up to 255) are used to reduce the size
         *       of this storage field.
         */
        _notices: null,

        _ticker: null,
    }),

    getters: {
        ticker(_state) {
            return _state._ticker
        },

        usd(_state) {
            const usd = _state._ticker?.quote?.USD?.price

            const formatted = parseFloat((usd * 1000000.0).toFixed(4))

            return formatted
        },

    },

    actions: {
        /**
         * Initialize Application
         *
         * Performs startup activities.
         */
        init() {
            /* Increment application starts. */
            this._appStarts++

            /* Set ticker interval. */
            setInterval(this.updateTicker, TICKER_INTERVAL)

            /* Initial ticker update. */
            this.updateTicker()
        },

        /**
         * Update Ticker
         */
        async updateTicker() {
            this._ticker = await $fetch(this.NEXA_EXCHANGE_ENDPOINT + '/_ticker')
                .catch(err => console.error(err))
            // console.info('SYSTEM (update ticker):', this.ticker)
        }

    },
})