52 lines
1.4 KiB
TypeScript
52 lines
1.4 KiB
TypeScript
import { load } from "@std/dotenv";
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import type { ZodType, z } from "zod";
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import { InvalidEnvironmentKeyError } from "./errors.ts";
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import { getServiceEnvironment, type ServiceEnvironment } from "./service.ts";
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const env = await load();
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/**
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* TODO ...
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*/
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export function getEnvironmentVariable<TType extends ZodType>({
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key,
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type,
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envFallback,
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fallback,
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}: {
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key: string;
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type: TType;
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envFallback?: EnvironmentFallback;
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fallback?: string;
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}): z.infer<TType> {
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const serviceEnv = getServiceEnvironment();
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const providedValue = env[key] ?? Deno.env.get(key);
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const fallbackValue = typeof envFallback === "object" ? (envFallback[serviceEnv] ?? fallback) : fallback;
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const toBeUsed = providedValue ?? fallbackValue;
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try {
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if (typeof toBeUsed === "string" && (toBeUsed.trim().startsWith("{") || toBeUsed.trim().startsWith("["))) {
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return type.parse(JSON.parse(toBeUsed));
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}
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return type.parse(toBeUsed);
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} catch (error) {
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throw new InvalidEnvironmentKeyError(key, {
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cause: error,
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});
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}
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}
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/*
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|--------------------------------------------------------------------------------
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| Types
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|--------------------------------------------------------------------------------
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*/
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type EnvironmentFallback = Partial<Record<ServiceEnvironment, string>> & {
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testing?: string;
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local?: string;
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stg?: string;
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demo?: string;
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prod?: string;
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};
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