import { defineStore } from 'pinia';
import api from '../api';

export function formatDuration(totalSeconds) {
  const s = Math.max(0, Math.floor(totalSeconds || 0));
  const h = String(Math.floor(s / 3600)).padStart(2, '0');
  const m = String(Math.floor((s % 3600) / 60)).padStart(2, '0');
  const sec = String(s % 60).padStart(2, '0');
  return `${h}:${m}:${sec}`;
}

export const useTimeStore = defineStore('time', {
  state: () => ({
    entries: [],
    open: null, // running timer entry (ended_at == null)
    workspaceId: null,
  }),
  getters: {
    elapsed: (s) => {
      if (!s.open) return 0;
      return (Date.now() - new Date(s.open.started_at).getTime()) / 1000;
    },
  },
  actions: {
    async fetch(workspaceId) {
      this.workspaceId = workspaceId;
      const { data } = await api.get(`/time/by-workspace/${workspaceId}`);
      this.entries = data.entries;
      this.open = data.open;
    },
    async start(description = '', book_id = null) {
      const { data } = await api.post('/time/start', {
        workspace_id: this.workspaceId, description, book_id,
      });
      this.open = data.entry;
      this.entries.unshift(data.entry);
      return data.entry;
    },
    async stop() {
      const { data } = await api.post('/time/stop', { workspace_id: this.workspaceId });
      this.open = null;
      const idx = this.entries.findIndex((e) => e.id === data.entry.id);
      if (idx >= 0) this.entries[idx] = { ...data.entry, user_name: this.entries[idx].user_name };
      else this.entries.unshift(data.entry);
      return data.entry;
    },
    async remove(id) {
      await api.delete(`/time/${id}`);
      this.entries = this.entries.filter((e) => e.id !== id);
    },
  },
});