31 lines
1.3 KiB
JavaScript
31 lines
1.3 KiB
JavaScript
import { memoize } from "@smithy/property-provider";
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import { DEFAULTS_MODE_OPTIONS } from "./constants";
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export const resolveDefaultsModeConfig = ({ defaultsMode, } = {}) => memoize(async () => {
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const mode = typeof defaultsMode === "function" ? await defaultsMode() : defaultsMode;
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switch (mode?.toLowerCase()) {
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case "auto":
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return Promise.resolve(useMobileConfiguration() ? "mobile" : "standard");
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case "mobile":
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case "in-region":
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case "cross-region":
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case "standard":
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case "legacy":
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return Promise.resolve(mode?.toLocaleLowerCase());
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case undefined:
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return Promise.resolve("legacy");
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default:
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throw new Error(`Invalid parameter for "defaultsMode", expect ${DEFAULTS_MODE_OPTIONS.join(", ")}, got ${mode}`);
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}
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});
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const useMobileConfiguration = () => {
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const navigator = window?.navigator;
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if (navigator?.connection) {
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const { effectiveType, rtt, downlink } = navigator?.connection;
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const slow = (typeof effectiveType === "string" && effectiveType !== "4g") || Number(rtt) > 100 || Number(downlink) < 10;
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if (slow) {
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return true;
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}
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}
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return (navigator?.userAgentData?.mobile || (typeof navigator?.maxTouchPoints === "number" && navigator?.maxTouchPoints > 1));
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};
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