Рефакторинг
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@@ -9,22 +9,14 @@ const workerApi = axios.create({
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});
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class Reader {
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async loadBook(opts, callback) {
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async getStateFinish(workerId, callback) {
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if (!callback) callback = () => {};
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let response = await api.post('/load-book', opts);
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const workerId = response.data.workerId;
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if (!workerId)
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throw new Error('Неверный ответ api');
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callback({totalSteps: 4});
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callback(response.data);
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//присылается текст, состоящий из json-объектов state каждые 300ms, с разделителем splitter между ними
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const splitter = '-- aod2t5hDXU32bUFyqlFE next status --';
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let lastIndex = 0;
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response = await workerApi.post('/get-state-finish', {workerId}, {
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let response = await workerApi.post('/get-state-finish', {workerId}, {
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onDownloadProgress: progress => {
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//небольая оптимизация, вместо простого responseText.split
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const xhr = progress.target;
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@@ -57,6 +49,23 @@ class Reader {
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}
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}
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return response;
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}
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async loadBook(opts, callback) {
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if (!callback) callback = () => {};
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let response = await api.post('/load-book', opts);
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const workerId = response.data.workerId;
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if (!workerId)
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throw new Error('Неверный ответ api');
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callback({totalSteps: 4});
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callback(response.data);
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response = await this.getStateFinish(workerId, callback);
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if (response) {
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if (response.state == 'finish') {//воркер закончил работу, можно скачивать кешированный на сервере файл
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callback({step: 4});
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@@ -83,7 +92,7 @@ class Reader {
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}
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async loadCachedBook(url, callback) {
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const response = await axios.head(url);
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const response = await axios.head(url, {headers: {'Cache-Control': 'no-cache'}});
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let estSize = 1000000;
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if (response.headers['content-length']) {
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