import type { AppConfig, ContentResponse, ContractMap, DemoResult } from "./types";

async function fetchJson<T>(path: string, init?: RequestInit): Promise<T> {
  const response = await fetch(path, init);
  if (!response.ok) {
    throw new Error(`Request failed for ${path}`);
  }
  return (await response.json()) as T;
}

export async function getConfig(): Promise<AppConfig> {
  return fetchJson<AppConfig>("/api/config");
}

export async function getContent(): Promise<ContentResponse> {
  return fetchJson<ContentResponse>("/api/content");
}

export async function getContracts(): Promise<ContractMap> {
  const [voiceRegistry, routeMatrix, seedLibrary, providerConfig] = await Promise.all([
    fetchJson<unknown>("/api/contracts/voice_registry"),
    fetchJson<unknown>("/api/contracts/route_model_matrix"),
    fetchJson<unknown>("/api/contracts/seed_voice_library"),
    fetchJson<unknown>("/api/contracts/provider_config"),
  ]);

  return {
    voice_registry: voiceRegistry,
    route_model_matrix: routeMatrix,
    seed_voice_library: seedLibrary,
    provider_config: providerConfig,
  };
}

export async function runDemo(workflowId: string): Promise<DemoResult> {
  return fetchJson<DemoResult>("/api/demo/simulate", {
    method: "POST",
    headers: {
      "Content-Type": "application/json",
    },
    body: JSON.stringify({ workflow_id: workflowId }),
  });
}