import {
  HELLTH_CLUB_KEY,
  HELLTH_DATA_KEY,
  defaultClubProfile,
  defaultGoals,
  defaultReminderSettings,
  seedActivityTemplates,
  seedFoods,
  seedPlannedMeals,
  seedRecipes,
  seedStores,
} from "./constants";
import type { ClubData, HellthData } from "./types";

export function defaultHellthData(): HellthData {
  return {
    stores: seedStores,
    foods: seedFoods,
    recipes: seedRecipes,
    recipeRatings: [],
    plannedMeals: seedPlannedMeals,
    shoppingItems: [],
    goals: defaultGoals,
    coachRecommendations: [],
    reminders: defaultReminderSettings,
    activityTemplates: seedActivityTemplates,
    activityLogs: [],
    weeklyCaloriePlans: [],
  };
}

function scopedStorageKey(baseKey: string, userKey?: string | null) {
  const normalized = userKey?.trim().toLowerCase();
  return normalized ? `${baseKey}:${normalized}` : baseKey;
}

export function hellthDataStorageKey(userKey?: string | null) {
  return scopedStorageKey(HELLTH_DATA_KEY, userKey);
}

function migrateGlobalDataToUserKey(userKey: string) {
  if (typeof window === "undefined") return;
  const scopedKey = hellthDataStorageKey(userKey);
  if (window.localStorage.getItem(scopedKey)) return;
  const globalData = window.localStorage.getItem(HELLTH_DATA_KEY);
  if (globalData) {
    window.localStorage.setItem(scopedKey, globalData);
  }
}

export function loadHellthData(userKey?: string | null): HellthData {
  if (typeof window === "undefined") return defaultHellthData();
  try {
    if (userKey) migrateGlobalDataToUserKey(userKey);
    const raw = window.localStorage.getItem(hellthDataStorageKey(userKey));
    if (!raw) return defaultHellthData();
    const parsed = JSON.parse(raw) as Partial<HellthData>;
    return {
      stores: parsed.stores?.length ? parsed.stores : seedStores,
      foods: parsed.foods?.length ? parsed.foods : seedFoods,
      recipes: parsed.recipes?.length ? parsed.recipes : seedRecipes,
      recipeRatings: parsed.recipeRatings ?? [],
      plannedMeals: parsed.plannedMeals ?? seedPlannedMeals,
      shoppingItems: parsed.shoppingItems ?? [],
      goals: { ...defaultGoals, ...parsed.goals },
      healthProfile: parsed.healthProfile,
      coachRecommendations: parsed.coachRecommendations ?? [],
      reminders: {
        ...defaultReminderSettings,
        ...parsed.reminders,
        rules: {
          water: { ...defaultReminderSettings.rules.water, ...parsed.reminders?.rules?.water },
          snack: { ...defaultReminderSettings.rules.snack, ...parsed.reminders?.rules?.snack },
          movement: { ...defaultReminderSettings.rules.movement, ...parsed.reminders?.rules?.movement },
        },
      },
      activityTemplates: parsed.activityTemplates?.length ? parsed.activityTemplates : seedActivityTemplates,
      activityLogs: parsed.activityLogs ?? [],
      weeklyCaloriePlans: parsed.weeklyCaloriePlans ?? [],
    };
  } catch {
    return defaultHellthData();
  }
}

export function saveHellthData(data: HellthData, userKey?: string | null) {
  if (typeof window === "undefined") return;
  window.localStorage.setItem(hellthDataStorageKey(userKey), JSON.stringify(data));
}

export function hasCompletedHealthProfile(userKey?: string | null) {
  return Boolean(loadHellthData(userKey).healthProfile?.completedAt);
}

import { todayKey } from "./constants";

export function defaultClubData(): ClubData {
  const today = todayKey();
  return {
    profile: defaultClubProfile,
    activities: [
      {
        id: "club-sebastian-walk",
        title: "Eine Stunde spazieren gehen",
        hostUserKey: "seed-sebastian",
        hostName: "Sebastian",
        category: "walk",
        scope: "state",
        state: "Bayern",
        city: "Augsburg",
        locationLabel: "Bayern",
        startsAt: `${today}T18:00:00`,
        durationMinutes: 60,
        points: 100,
        note: "Lockerer Spaziergang nach Feierabend. Jeder geht für sich, aber wir starten gemeinsam.",
        participants: [
          {
            userKey: "seed-sebastian",
            displayName: "Sebastian",
            joinedAt: `${today}T10:00:00`,
          },
        ],
      },
      {
        id: "club-mobility",
        title: "5 Minuten Dehnübungen",
        hostUserKey: "seed-hellth",
        hostName: "Hellth Coach",
        category: "mobility",
        scope: "nationwide",
        state: "Bayern",
        locationLabel: "Deutschlandweit",
        startsAt: `${today}T15:00:00`,
        durationMinutes: 5,
        points: 20,
        note: "Kurze Schreibtischpause. Matte nicht nötig.",
        participants: [],
      },
    ],
  };
}

export function loadClubData(): ClubData {
  if (typeof window === "undefined") return defaultClubData();
  try {
    const raw = window.localStorage.getItem(HELLTH_CLUB_KEY);
    if (!raw) return defaultClubData();
    const parsed = JSON.parse(raw) as Partial<ClubData>;
    return {
      profile: { ...defaultClubProfile, ...parsed.profile },
      activities: parsed.activities?.length ? parsed.activities : defaultClubData().activities,
    };
  } catch {
    return defaultClubData();
  }
}

export function saveClubData(data: ClubData) {
  if (typeof window === "undefined") return;
  window.localStorage.setItem(HELLTH_CLUB_KEY, JSON.stringify(data));
}