resolveAzureOpenAiBaseUrl (compaction/azure-openai-endpoint.ts)

Module exposing: resolveAzureOpenAiBaseUrl, appendAzureApiVersion

// Source: https://github.com/can1357/oh-my-pi | License: MIT | Copyright 2025 Mario Zechner
// Provided via justclaw.it.com; keep this notice with the code.
import type { Model } from "@oh-my-pi/pi-ai";
import { $env } from "@oh-my-pi/pi-utils";

const DEFAULT_AZURE_API_VERSION = "v1";

/** Azure OpenAI base URL for compaction requests: env override, resource name, then the model's baseUrl. */
export function resolveAzureOpenAiBaseUrl(model: Model): string {
	const baseUrl = $env.AZURE_OPENAI_BASE_URL?.trim() || undefined;
	const resourceName = $env.AZURE_OPENAI_RESOURCE_NAME;
	const resolvedBaseUrl =
		baseUrl ?? (resourceName ? `https://${resourceName}.openai.azure.com/openai/v1` : undefined) ?? model.baseUrl;
	if (!resolvedBaseUrl) {
		throw new Error(
			"Azure OpenAI base URL is requ

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