import { FontAwesome, FontAwesome5, MaterialCommunityIcons } from '@expo/vector-icons';
import AsyncStorage from '@react-native-async-storage/async-storage';

export type ProgramActivity = {
  time: string;
  title: string;
  description: string;
  iconSet: 'FontAwesome' | 'FontAwesome5' | 'MaterialCommunityIcons';
  iconName: React.ComponentProps<typeof FontAwesome>['name'] | React.ComponentProps<typeof FontAwesome5>['name'] | React.ComponentProps<typeof MaterialCommunityIcons>['name'];
  transport?: string;
};

export type ProgramActivities = {
  [date: string]: ProgramActivity[];
};

export type ProgramData = {
  activities: ProgramActivities;
  isStale: boolean;
};

const PROGRAMS_URL = 'http://kepilhyzmat.com/assets/programs.json';
const PROGRAMS_CACHE_KEY = 'program_activities_cache';

export const getPrograms = async (): Promise<ProgramData> => {
  try {
    const response = await fetch(PROGRAMS_URL);
    if (!response.ok) {
      throw new Error(`Request failed with status ${response.status}`);
    }
    const data: ProgramActivities = await response.json();
    await AsyncStorage.setItem(PROGRAMS_CACHE_KEY, JSON.stringify(data));
    return { activities: data, isStale: false };
  } catch (error) {
    console.error('Failed to fetch programs:', error);
    const cachedData = await AsyncStorage.getItem(PROGRAMS_CACHE_KEY);
    if (cachedData) {
      return { activities: JSON.parse(cachedData), isStale: true };
    }
    throw new Error('Failed to fetch programs and no cache available.');
  }
};