import { PUBLIC_MAPBOX_TOKEN } from "$env/static/public";
import { basemaps } from "$lib/assets/layers";

export type EmbeddingOptions = {
    token: string;
    files: string[];
    basemap: string;
    elevation: {
        show: boolean;
        height: number,
        controls: boolean,
        fill: 'slope' | 'surface' | undefined,
        speed: boolean,
        hr: boolean,
        cad: boolean,
        temp: boolean,
        power: boolean,
    },
    distanceMarkers: boolean,
    directionMarkers: boolean,
    distanceUnits: 'metric' | 'imperial',
    velocityUnits: 'speed' | 'pace',
    temperatureUnits: 'celsius' | 'fahrenheit',
    theme: 'system' | 'light' | 'dark',
};

export const defaultEmbeddingOptions = {
    token: '',
    files: [],
    basemap: 'mapboxOutdoors',
    elevation: {
        show: true,
        height: 170,
        controls: true,
        fill: undefined,
        speed: false,
        hr: false,
        cad: false,
        temp: false,
        power: false,
    },
    distanceMarkers: false,
    directionMarkers: false,
    distanceUnits: 'metric',
    velocityUnits: 'speed',
    temperatureUnits: 'celsius',
    theme: 'system',
};

export function getDefaultEmbeddingOptions(): EmbeddingOptions {
    return JSON.parse(JSON.stringify(defaultEmbeddingOptions));
}

export function getMergedEmbeddingOptions(options: any, defaultOptions: any = defaultEmbeddingOptions): EmbeddingOptions {
    const mergedOptions = JSON.parse(JSON.stringify(defaultOptions));
    for (const key in options) {
        if (typeof options[key] === 'object' && options[key] !== null && !Array.isArray(options[key])) {
            mergedOptions[key] = getMergedEmbeddingOptions(options[key], defaultOptions[key]);
        } else {
            mergedOptions[key] = options[key];
        }
    }
    return mergedOptions;
}

export function getCleanedEmbeddingOptions(options: any, defaultOptions: any = defaultEmbeddingOptions): any {
    const cleanedOptions = JSON.parse(JSON.stringify(options));
    for (const key in cleanedOptions) {
        if (typeof cleanedOptions[key] === 'object' && cleanedOptions[key] !== null && !Array.isArray(cleanedOptions[key])) {
            cleanedOptions[key] = getCleanedEmbeddingOptions(cleanedOptions[key], defaultOptions[key]);
            if (Object.keys(cleanedOptions[key]).length === 0) {
                delete cleanedOptions[key];
            }
        } else if (JSON.stringify(cleanedOptions[key]) === JSON.stringify(defaultOptions[key])) {
            delete cleanedOptions[key];
        }
    }
    return cleanedOptions;
}

export const allowedEmbeddingBasemaps = Object.keys(basemaps).filter(basemap => !['ordnanceSurvey'].includes(basemap));

export function getURLForGoogleDriveFile(fileId: string): string {
    return `https://www.googleapis.com/drive/v3/files/${fileId}?alt=media&key=AIzaSyA2ZadQob_hXiT2VaYIkAyafPvz_4ZMssk`;
}

export function convertOldEmbeddingOptions(options: URLSearchParams): any {
    let newOptions: any = {
        token: PUBLIC_MAPBOX_TOKEN,
        files: [],
    };
    if (options.has('state')) {
        let state = JSON.parse(options.get('state')!);
        if (state.ids) {
            newOptions.files.push(...state.ids.map(getURLForGoogleDriveFile));
        }
        if (state.urls) {
            newOptions.files.push(...state.urls);
        }
    }
    if (options.has('source')) {
        let basemap = options.get('source')!;
        if (basemap === 'satellite') {
            newOptions.basemap = 'mapboxSatellite';
        } else if (basemap === 'otm') {
            newOptions.basemap = 'openTopoMap';
        } else if (basemap === 'ohm') {
            newOptions.basemap = 'openHikingMap';
        }
    }
    if (options.has('imperial')) {
        newOptions.distanceUnits = 'imperial';
    }
    if (options.has('running')) {
        newOptions.velocityUnits = 'pace';
    }
    if (options.has('distance')) {
        newOptions.distanceMarkers = true;
    }
    if (options.has('direction')) {
        newOptions.directionMarkers = true;
    }
    if (options.has('slope')) {
        newOptions.elevation = {
            fill: 'slope',
        };
    }
    return newOptions;
}