"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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const fs_1 = require("fs");
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const util_1 = require("util");
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const is_1 = require("@sindresorhus/is");
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const is_form_data_1 = require("./is-form-data");
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const statAsync = util_1.promisify(fs_1.stat);
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exports.default = async (body, headers) => {
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if (headers && 'content-length' in headers) {
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return Number(headers['content-length']);
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}
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if (!body) {
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return 0;
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}
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if (is_1.default.string(body)) {
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return Buffer.byteLength(body);
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}
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if (is_1.default.buffer(body)) {
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return body.length;
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}
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if (is_form_data_1.default(body)) {
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return util_1.promisify(body.getLength.bind(body))();
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}
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if (body instanceof fs_1.ReadStream) {
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const { size } = await statAsync(body.path);
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if (size === 0) {
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return undefined;
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}
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return size;
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}
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return undefined;
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};
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