import { writable } from 'svelte/store';
import { invoke } from '@tauri-apps/api/core';

export interface AppSettings {
  ai_provider: string;
  openai_api_key: string;
  anthropic_api_key: string;
  openai_model: string;
  anthropic_model: string;
  litellm_model: string;
  local_model_path: string;
  local_binary_path: string;
  transcription_model: string;
  transcription_device: string;
  transcription_language: string;
  skip_diarization: boolean;
}

const defaults: AppSettings = {
  ai_provider: 'local',
  openai_api_key: '',
  anthropic_api_key: '',
  openai_model: 'gpt-4o-mini',
  anthropic_model: 'claude-sonnet-4-6',
  litellm_model: 'gpt-4o-mini',
  local_model_path: '',
  local_binary_path: 'llama-server',
  transcription_model: 'base',
  transcription_device: 'cpu',
  transcription_language: '',
  skip_diarization: false,
};

export const settings = writable<AppSettings>({ ...defaults });

export async function loadSettings(): Promise<void> {
  try {
    const saved = await invoke<Record<string, unknown>>('load_settings');
    settings.update(s => ({ ...s, ...saved } as AppSettings));
  } catch {
    // Use defaults if settings can't be loaded
  }
}

export async function saveSettings(s: AppSettings): Promise<void> {
  settings.set(s);
  await invoke('save_settings', { settings: s });
}