/**
 * Industry Store — Zustand store for industry configuration
 *
 * Manages industry configs fetched from SaaS, cached locally for
 * offline fallback. Injected into ButlerRouter for dynamic keyword routing.
 */

import { create } from 'zustand';
import { persist } from 'zustand/middleware';
import type { IndustryFullConfig, AccountIndustryItem } from '../lib/saas-client';
import { saasClient } from '../lib/saas-client';

// ============ Types ============

interface IndustryState {
  /** User's authorized industries */
  accountIndustries: AccountIndustryItem[];
  /** Full configs for authorized industries (keyed by industry id) */
  configs: Record<string, IndustryFullConfig>;
  /** Last sync timestamp */
  lastSynced: string | null;
  /** Loading state */
  isLoading: boolean;
  /** Error message */
  error: string | null;
}

interface IndustryActions {
  /** Fetch user industries + full configs from SaaS */
  fetchIndustries: () => Promise<void>;
  /** Get all loaded industry keywords (for trigger system) */
  getAllKeywords: () => string[];
  /** Clear all data */
  clear: () => void;
}

type IndustryStore = IndustryState & IndustryActions;

// ============ Store ============

export const useIndustryStore = create<IndustryStore>()(
  persist(
    (set, get) => ({
      accountIndustries: [],
      configs: {},
      lastSynced: null,
      isLoading: false,
      error: null,

      fetchIndustries: async () => {
        set({ isLoading: true, error: null });
        try {
          // Step 1: Get user's authorized industries
          const accountIndustries = await saasClient.getMyIndustries();

          // Step 2: Fetch full config for each authorized industry
          const configs: Record<string, IndustryFullConfig> = {};
          for (const item of accountIndustries) {
            try {
              const fullConfig = await saasClient.getIndustryFullConfig(item.industry_id);
              configs[item.industry_id] = fullConfig;
            } catch (err) {
              // Non-fatal: one industry failing shouldn't block others
              console.warn(`[industryStore] Failed to fetch config for ${item.industry_id}:`, err);
            }
          }

          set({
            accountIndustries,
            configs,
            lastSynced: new Date().toISOString(),
            isLoading: false,
          });

          // Step 3: Push to Rust ButlerRouter via Tauri invoke
          try {
            const { invoke } = await import('@tauri-apps/api/core');
            const industryConfigs = Object.values(configs).map((c) => ({
              id: c.id,
              name: c.name,
              keywords: c.keywords,
              system_prompt: c.system_prompt,
            }));
            await invoke('viking_load_industry_keywords', { configs: JSON.stringify(industryConfigs) });
          } catch (err) {
            // Tauri not available (browser mode) — ignore
          }
        } catch (err) {
          set({
            error: err instanceof Error ? err.message : String(err),
            isLoading: false,
          });
        }
      },

      getAllKeywords: () => {
        const { configs } = get();
        const allKeywords: string[] = [];
        for (const config of Object.values(configs)) {
          allKeywords.push(...config.keywords);
        }
        return allKeywords;
      },

      clear: () => {
        set({
          accountIndustries: [],
          configs: {},
          lastSynced: null,
          isLoading: false,
          error: null,
        });
      },
    }),
    {
      name: 'zclaw-industry-store',
      // Only persist configs and industries (not loading/error state)
      partialize: (state) => ({
        accountIndustries: state.accountIndustries,
        configs: state.configs,
        lastSynced: state.lastSynced,
      }),
    },
  ),
);