import Event from "pubsub-js";
import themes from "../resources/themes.json";
import translations from "../resources/translations.json";
import Api from "./api";

class Config {
    /**
     * @param {Storage} storage
     * @param {object} values
     */
    constructor(storage, values) {
        this.storage = storage;
        this.storage_key = "config";

        this.$vuetify = null;
        this.translations = translations;

        if (!values || !values.siteTitle) {
            console.warn("config: values are empty");
            this.debug = true;
            this.values = {};
            this.page = {
                title: "PhotoPrism",
            };
            return;
        }

        this.page = {
            title: values.siteTitle,
        };

        this.values = values;
        this.debug = !!values.debug;

        Event.subscribe("config.updated", (ev, data) => this.setValues(data.config));
        Event.subscribe("count", (ev, data) => this.onCount(ev, data));

        if (this.has("settings")) {
            this.setTheme(this.get("settings").theme);
        } else {
            this.setTheme("default");
        }
    }

    update() {
        Api.get("config").then((response) => this.setValues(response.data));
    }

    setValues(values) {
        if (!values) return;

        if (this.debug) {
            console.log("new config values", values);
        }

        for (let key in values) {
            if (values.hasOwnProperty(key)) {
                this.set(key, values[key]);
            }
        }

        if (values.settings) {
            this.setTheme(values.settings.theme);
        }

        return this;
    }

    onCount(ev, data) {
        const type = ev.split(".")[1];

        switch (type) {
        case "cameras":
            this.values.count.cameras += data.count;
            this.update();
            break;
        case "lenses":
            this.values.count.lenses += data.count;
            break;
        case "countries":
            this.values.count.countries += data.count;
            this.update();
            break;
        case "states":
            this.values.count.states += data.count;
            break;
        case "places":
            this.values.count.places += data.count;
            break;
        case "labels":
            this.values.count.labels += data.count;
            break;
        case "videos":
            this.values.count.videos += data.count;
            break;
        case "albums":
            this.values.count.albums += data.count;
            break;
        case "moments":
            this.values.count.moments += data.count;
            break;
        case "months":
            this.values.count.months += data.count;
            break;
        case "folders":
            this.values.count.folders += data.count;
            break;
        case "files":
            this.values.count.files += data.count;
            break;
        case "favorites":
            this.values.count.favorites += data.count;
            break;
        case "review":
            this.values.count.review += data.count;
            break;
        case "private":
            this.values.count.private += data.count;
            break;
        case "photos":
            this.values.count.photos += data.count;
            break;
        default:
            console.warn("unknown count type", ev, data);
        }

        this.values.count;
    }

    setVuetify(instance) {
        this.$vuetify = instance;
    }

    setTheme(name) {
        this.theme = themes[name] ? themes[name] : themes["default"];

        if (this.$vuetify) {
            this.$vuetify.theme = this.theme;
        }

        return this;
    }

    getValues() {
        return this.values;
    }

    storeValues() {
        this.storage.setItem(this.storage_key, JSON.stringify(this.getValues()));
        return this;
    }

    set(key, value) {
        this.values[key] = value;
        return this;
    }

    has(key) {
        return !!this.values[key];
    }

    get(key) {
        return this.values[key];
    }

    feature(name) {
        return this.values.settings.features[name];
    }

    settings() {
        return this.values.settings;
    }

    downloadToken() {
        return this.values["downloadToken"];
    }

    previewToken() {
        return this.values["previewToken"];
    }
}

export default Config;