@ffflorian/xkcdjs/dist/XKCDAPI.js

"use strict";
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
    return new (P || (P = Promise))(function (resolve, reject) {
        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
        step((generator = generator.apply(thisArg, _arguments || [])).next());
    });
};
Object.defineProperty(exports, "__esModule", { value: true });
class XKCDAPI {
    constructor(apiClient, options) {
        this.apiClient = apiClient;
        this.options = options;
        this.lowestIndex = 1;
        this.JSON_INFO_FILE = 'info.0.json';
    }
    getByIndex(index, options = {}) {
        return __awaiter(this, void 0, void 0, function* () {
            if (index < this.lowestIndex) {
                throw new Error(`Index is lower than the lowest index of ${this.lowestIndex}.`);
            }
            const { data: metaData } = yield this.apiClient.get(`/${index}/${this.JSON_INFO_FILE}`);
            if (options.withData === true) {
                const imageData = yield this.getImage(metaData.img);
                return Object.assign(Object.assign({}, metaData), { data: imageData });
            }
            return metaData;
        });
    }
    getLatest(options = {}) {
        return __awaiter(this, void 0, void 0, function* () {
            const { data: metaData } = yield this.apiClient.get(`/${this.JSON_INFO_FILE}`);
            if (options.withData) {
                const imageData = yield this.getImage(metaData.img);
                return Object.assign(Object.assign({}, metaData), { data: imageData });
            }
            return metaData;
        });
    }
    getRandom(options = {}) {
        return __awaiter(this, void 0, void 0, function* () {
            const latest = yield this.getLatest();
            const randomIndex = Math.floor(Math.random() * (latest.num - this.lowestIndex + 1)) + this.lowestIndex;
            const metaData = yield this.getByIndex(randomIndex);
            if (options.withData === true) {
                const imageData = yield this.getImage(metaData.img);
                return Object.assign(Object.assign({}, metaData), { data: imageData });
            }
            return metaData;
        });
    }
    getImage(imageUrl) {
        return __awaiter(this, void 0, void 0, function* () {
            const { data, headers } = yield this.apiClient.request({
                responseType: 'arraybuffer',
                url: imageUrl,
            });
            const contentType = headers['content-type'];
            return {
                data,
                mimeType: contentType ? String(contentType) : undefined,
            };
        });
    }
}
exports.XKCDAPI = XKCDAPI;
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