@kmd/googlenews/lib/content.js

"use strict";
//import fetch from 'node-fetch';
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());
    });
};
var __generator = (this && this.__generator) || function (thisArg, body) {
    var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
    return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
    function verb(n) { return function (v) { return step([n, v]); }; }
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            if (y = 0, t) op = [op[0] & 2, t.value];
            switch (op[0]) {
                case 0: case 1: t = op; break;
                case 4: _.label++; return { value: op[1], done: false };
                case 5: _.label++; y = op[1]; op = [0]; continue;
                case 7: op = _.ops.pop(); _.trys.pop(); continue;
                default:
                    if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
                    if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
                    if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
                    if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
                    if (t[2]) _.ops.pop();
                    _.trys.pop(); continue;
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            op = body.call(thisArg, _);
        } catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
        if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
    }
};
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
var rss_parser_1 = __importDefault(require("rss-parser"));
var moment_1 = __importDefault(require("moment"));
var rssParser = new rss_parser_1.default({
    customFields: {
        item: [
            ['media:content', 'media:content'],
            ["source", "source"],
            ["description", "description"]
        ]
    },
});
// fetch to url and get text
var getText = function (url, fetch) { return __awaiter(void 0, void 0, void 0, function () {
    var encoded_url, response, text;
    return __generator(this, function (_a) {
        switch (_a.label) {
            case 0:
                encoded_url = encodeURI(url);
                return [4 /*yield*/, fetch(encoded_url)];
            case 1:
                response = _a.sent();
                return [4 /*yield*/, response.text()];
            case 2:
                text = _a.sent();
                return [2 /*return*/, text];
        }
    });
}); };
var convertText2Object = function (text, isDated) {
    if (isDated === void 0) { isDated = true; }
    return __awaiter(void 0, void 0, void 0, function () { return __generator(this, function (_a) {
        switch (_a.label) {
            case 0: return [4 /*yield*/, rssParser.parseString(text)];
            case 1: return [2 /*return*/, _a.sent()];
        }
    }); });
};
var getDated = function (parsed_object) {
    if (!parsed_object.items)
        throw Error("no items.");
    parsed_object.items.forEach(function (element) {
        var moment_ob = moment_1.default(element.pubDate);
        element.pubDate = moment_ob.format('YYYY-MM-DD HH:mm');
        var dateItem = { year: null, day: null, hour: null, date: null, month: null };
        dateItem.year = moment_ob.year();
        dateItem.day = moment_ob.day();
        dateItem.date = moment_ob.date();
        dateItem.hour = moment_ob.hour();
        dateItem.month = moment_ob.month() + 1;
        element.dateItem = dateItem;
        // convert source
        if (!element.source)
            throw Error("no source");
        element.source_name = element.source._;
        element.source_url = element.source["$"] ? element.source["$"]["url"] : null;
    });
    return parsed_object.items.sort(function (a, b) { return a.pubDate > b.pubDate ? -1 : (a.pubDate < b.pubDate ? 1 : 0); });
};
var getContent = function (url, fetch, isDated) {
    if (isDated === void 0) { isDated = true; }
    return __awaiter(void 0, void 0, void 0, function () {
        var text, parsed_object;
        return __generator(this, function (_a) {
            switch (_a.label) {
                case 0: return [4 /*yield*/, getText(url, fetch)];
                case 1:
                    text = _a.sent();
                    return [4 /*yield*/, convertText2Object(text, isDated)];
                case 2:
                    parsed_object = _a.sent();
                    return [2 /*return*/, getDated(parsed_object)];
            }
        });
    });
};
// add language
exports.default = (function (url, fetch, limit) {
    if (limit === void 0) { limit = null; }
    return __awaiter(void 0, void 0, void 0, function () {
        var articles;
        return __generator(this, function (_a) {
            switch (_a.label) {
                case 0: return [4 /*yield*/, getContent(url, fetch)];
                case 1:
                    articles = _a.sent();
                    if (limit) {
                        articles = articles.slice(0, limit);
                    }
                    return [2 /*return*/, articles];
            }
        });
    });
});