import {
  branches,
  inventoryBatches,
  products,
  sales,
  salespeople,
} from "@/lib/demo-data";
import type { IntegrationProvider } from "@/lib/types";
import type { IntegrationAdapter, SyncPage } from "@/integrations/types";

function page<T>(records: T[]): SyncPage<T> {
  return { records, nextCursor: null };
}

export class MockIntegrationAdapter implements IntegrationAdapter {
  constructor(readonly provider: IntegrationProvider) {}

  async testConnection() {
    return {
      ok: true,
      message: `${this.provider === "odoo" ? "Odoo" : "Salesforce"} demo source is ready`,
    };
  }

  async fetchProducts() {
    return page(this.provider === "odoo" ? products : []);
  }

  async fetchBranches() {
    return page(branches);
  }

  async fetchInventory() {
    return page(this.provider === "odoo" ? inventoryBatches : []);
  }

  async fetchSalespeople() {
    return page(this.provider === "salesforce" ? salespeople : []);
  }

  async fetchSales() {
    return page(this.provider === "salesforce" ? sales : []);
  }
}