import { createStore } from './createStore.js';

/**
 * Shiny hunts: one entry per Pokémon you're actively hunting, with an
 * encounter counter and the method's odds. Lives in localStorage next to
 * the other tracking data; rides along in the JSON export.
 */
export const shinyHunts = createStore('pdx.shinyHunts', { hunts: [] });

let seq = Date.now();
const uid = () => `h${(seq++).toString(36)}`;

export function addHunt({ speciesId, method, charm }) {
  shinyHunts.set((s) => ({
    ...s,
    hunts: [
      { id: uid(), speciesId, method, charm: !!charm, count: 0, notes: '', startedAt: new Date().toISOString() },
      ...s.hunts,
    ],
  }));
}

export function updateHunt(id, patch) {
  shinyHunts.set((s) => ({
    ...s,
    hunts: s.hunts.map((h) => (h.id === id ? { ...h, ...patch } : h)),
  }));
}

export function bumpHunt(id, delta) {
  shinyHunts.set((s) => ({
    ...s,
    hunts: s.hunts.map((h) => (h.id === id ? { ...h, count: Math.max(0, h.count + delta) } : h)),
  }));
}

export function removeHunt(id) {
  shinyHunts.set((s) => ({ ...s, hunts: s.hunts.filter((h) => h.id !== id) }));
}