import { CalendarEvent, UserRole, AppSettings } from '../types';

const EVENTS_KEY = 'ourtime_events_v1';
const SETTINGS_KEY = 'ourtime_settings_v1';

export const getStoredEvents = (): CalendarEvent[] => {
  try {
    const stored = localStorage.getItem(EVENTS_KEY);
    return stored ? JSON.parse(stored) : [];
  } catch (e) {
    console.error("Failed to load events", e);
    return [];
  }
};

export const saveEvent = (event: CalendarEvent): CalendarEvent[] => {
  const events = getStoredEvents();
  // Check if update or new
  const index = events.findIndex(e => e.id === event.id);
  let newEvents;
  if (index >= 0) {
    newEvents = [...events];
    newEvents[index] = event;
  } else {
    newEvents = [...events, event];
  }
  
  localStorage.setItem(EVENTS_KEY, JSON.stringify(newEvents));
  return newEvents;
};

export const deleteEvent = (eventId: string): CalendarEvent[] => {
  const events = getStoredEvents();
  const newEvents = events.filter(e => e.id !== eventId);
  localStorage.setItem(EVENTS_KEY, JSON.stringify(newEvents));
  return newEvents;
};

export const getSettings = (): AppSettings => {
  try {
    const stored = localStorage.getItem(SETTINGS_KEY);
    if (stored) return JSON.parse(stored);
  } catch (e) {
    console.error(e);
  }
  return {
    momColor: '#F472B6',
    dadColor: '#60A5FA',
    mcpServerUrl: 'http://192.168.1.100:8000/stream',
    enableMcp: false,
    aiProvider: 'gemini', // Default to Gemini for reliability, user can switch to Ollama
    ollamaUrl: 'http://localhost:11434',
    ollamaModel: 'llama3',
    momZodiac: 'Unknown',
    dadZodiac: 'Unknown',
    familiar: 'None'
  };
};

export const saveSettings = (settings: AppSettings) => {
  localStorage.setItem(SETTINGS_KEY, JSON.stringify(settings));
};

// Seed some initial data if empty for demo purposes
export const seedInitialData = () => {
  if (!localStorage.getItem(EVENTS_KEY)) {
    const today = new Date();
    const initialEvents: CalendarEvent[] = [
      {
        id: '1',
        title: 'Date Night ❤️',
        startTime: new Date(today.getFullYear(), today.getMonth(), today.getDate() + 2, 19, 0).toISOString(),
        endTime: new Date(today.getFullYear(), today.getMonth(), today.getDate() + 2, 21, 0).toISOString(),
        createdBy: 'dad',
        category: 'date',
        description: 'Dinner at the Italian place',
      },
      {
        id: '2',
        title: 'Grocery Run',
        startTime: new Date(today.getFullYear(), today.getMonth(), today.getDate(), 10, 0).toISOString(),
        endTime: new Date(today.getFullYear(), today.getMonth(), today.getDate(), 11, 0).toISOString(),
        createdBy: 'mom',
        category: 'chore',
        description: 'Milk, Eggs, Bread',
      }
    ];
    localStorage.setItem(EVENTS_KEY, JSON.stringify(initialEvents));
  }
};