import { createContext, DomainError } from "@tailor-platform/erp-kit/app";
import { createResolver, t } from "@tailor-platform/sdk";
import { getDB } from "@/generated/kysely-tailordb";
import { salesModulesExport } from "@/modules";

export default createResolver({
  name: "createSalesItem",
  operation: "mutation",
  input: {
    itemId: t.string().description("Item to adopt for selling"),
    requiresPhysicalFulfillment: t
      .bool()
      .description("Whether selling this item is expected to produce an outbound shipment"),
  },
  body: async (context) => {
    const ctx = createContext(context);
    const db = getDB("main-db");
    return db
      .transaction()
      .execute(async (trx) => {
        const result = await salesModulesExport.commands.createSalesItem(
          trx,
          {
            itemId: context.input.itemId,
            requiresPhysicalFulfillment: context.input.requiresPhysicalFulfillment,
          },
          ctx,
        );

        if (!result.ok) {
          switch (result.error.code) {
            case "SALES_ITEM_NOT_FOUND":
              throw new DomainError(`Item not found: ${context.input.itemId}`);
            case "SALES_DUPLICATE_SALES_ITEM":
              throw new DomainError(`Item already has a selling record: ${context.input.itemId}`);
            case "UNAUTHENTICATED":
              throw new DomainError("Authentication is required");
            case "INSUFFICIENT_PERMISSION":
              throw new DomainError("You do not have permission to perform this action");
            default:
              throw result.error satisfies never;
          }
        }

        return { id: result.value.salesItemId };
      })
      .catch((err: unknown) => {
        if (err instanceof DomainError) throw err;
        throw new Error("Failed to adopt the item for selling", { cause: err });
      });
  },
  // Entity-typed so clients can select SalesItem fields off the result.
  output: t.object({ id: t.uuid() }).typeName(salesModulesExport.db.salesItem.name),
});