jest.mock("../models/list.model.v2", () => ({
  addHistoryRecord: jest.fn(),
  addOrUpdateItem: jest.fn(),
  getItemByName: jest.fn(),
  upsertClassification: jest.fn(),
}));

jest.mock("../models/household.model", () => ({
  isHouseholdMember: jest.fn(),
}));

jest.mock("../utils/logger", () => ({
  logError: jest.fn(),
}));

const List = require("../models/list.model.v2");
const householdModel = require("../models/household.model");
const controller = require("../controllers/lists.controller.v2");

function createResponse() {
  const res = {};
  res.status = jest.fn().mockReturnValue(res);
  res.json = jest.fn().mockReturnValue(res);
  return res;
}

describe("lists.controller.v2 addItem", () => {
  beforeEach(() => {
    jest.clearAllMocks();
    List.addOrUpdateItem.mockResolvedValue({
      listId: 42,
      itemId: 99,
      itemName: "milk",
      isNew: true,
    });
    List.addHistoryRecord.mockResolvedValue(undefined);
    List.getItemByName.mockResolvedValue({ id: 42, item_id: 99, item_name: "milk" });
    List.upsertClassification.mockResolvedValue(undefined);
    householdModel.isHouseholdMember.mockResolvedValue(true);
  });

  test("records history for selected added_for_user_id when member is valid", async () => {
    const req = {
      params: { householdId: "1", storeId: "2" },
      body: { item_name: "milk", quantity: "1", added_for_user_id: "9" },
      user: { id: 7 },
      processedImage: null,
    };
    const res = createResponse();

    await controller.addItem(req, res);

    expect(householdModel.isHouseholdMember).toHaveBeenCalledWith("1", 9);
    expect(List.addOrUpdateItem).toHaveBeenCalled();
    expect(List.addHistoryRecord).toHaveBeenCalledWith(42, "1", 9);
    expect(res.status).not.toHaveBeenCalledWith(400);
  });

  test("records history using request user when added_for_user_id is not provided", async () => {
    const req = {
      params: { householdId: "1", storeId: "2" },
      body: { item_name: "milk", quantity: "1" },
      user: { id: 7 },
      processedImage: null,
    };
    const res = createResponse();

    await controller.addItem(req, res);

    expect(householdModel.isHouseholdMember).not.toHaveBeenCalled();
    expect(List.addOrUpdateItem).toHaveBeenCalled();
    expect(List.addHistoryRecord).toHaveBeenCalledWith(42, "1", 7);
    expect(res.status).not.toHaveBeenCalledWith(400);
  });

  test("records history using request user when added_for_user_id is blank", async () => {
    const req = {
      params: { householdId: "1", storeId: "2" },
      body: { item_name: "milk", quantity: "1", added_for_user_id: "   " },
      user: { id: 7 },
      processedImage: null,
    };
    const res = createResponse();

    await controller.addItem(req, res);

    expect(householdModel.isHouseholdMember).not.toHaveBeenCalled();
    expect(List.addOrUpdateItem).toHaveBeenCalled();
    expect(List.addHistoryRecord).toHaveBeenCalledWith(42, "1", 7);
    expect(res.status).not.toHaveBeenCalledWith(400);
  });

  test("rejects invalid added_for_user_id", async () => {
    const req = {
      params: { householdId: "1", storeId: "2" },
      body: { item_name: "milk", quantity: "1", added_for_user_id: "abc" },
      user: { id: 7 },
      processedImage: null,
    };
    const res = createResponse();

    await controller.addItem(req, res);

    expect(List.addOrUpdateItem).not.toHaveBeenCalled();
    expect(List.addHistoryRecord).not.toHaveBeenCalled();
    expect(res.status).toHaveBeenCalledWith(400);
    expect(res.json).toHaveBeenCalledWith(
      expect.objectContaining({
        error: expect.objectContaining({
          message: "Added-for user ID must be a positive integer",
        }),
      })
    );
  });

  test("rejects malformed numeric-looking added_for_user_id", async () => {
    const req = {
      params: { householdId: "1", storeId: "2" },
      body: { item_name: "milk", quantity: "1", added_for_user_id: "9abc" },
      user: { id: 7 },
      processedImage: null,
    };
    const res = createResponse();

    await controller.addItem(req, res);

    expect(List.addOrUpdateItem).not.toHaveBeenCalled();
    expect(List.addHistoryRecord).not.toHaveBeenCalled();
    expect(res.status).toHaveBeenCalledWith(400);
    expect(res.json).toHaveBeenCalledWith(
      expect.objectContaining({
        error: expect.objectContaining({
          message: "Added-for user ID must be a positive integer",
        }),
      })
    );
  });

  test("rejects added_for_user_id when target user is not household member", async () => {
    householdModel.isHouseholdMember.mockResolvedValue(false);

    const req = {
      params: { householdId: "1", storeId: "2" },
      body: { item_name: "milk", quantity: "1", added_for_user_id: "11" },
      user: { id: 7 },
      processedImage: null,
    };
    const res = createResponse();

    await controller.addItem(req, res);

    expect(householdModel.isHouseholdMember).toHaveBeenCalledWith("1", 11);
    expect(List.addOrUpdateItem).not.toHaveBeenCalled();
    expect(List.addHistoryRecord).not.toHaveBeenCalled();
    expect(res.status).toHaveBeenCalledWith(400);
    expect(res.json).toHaveBeenCalledWith(
      expect.objectContaining({
        error: expect.objectContaining({
          message: "Selected user is not a member of this household",
        }),
      })
    );
  });
});

describe("lists.controller.v2 setClassification", () => {
  beforeEach(() => {
    jest.clearAllMocks();
    List.getItemByName.mockResolvedValue({ id: 42, item_id: 99, item_name: "milk" });
    List.upsertClassification.mockResolvedValue(undefined);
    List.addOrUpdateItem.mockResolvedValue({
      listId: 42,
      itemId: 99,
      itemName: "milk",
      isNew: true,
    });
  });

  test("accepts object classification with type, group, and zone", async () => {
    const req = {
      params: { householdId: "1", storeId: "2" },
      body: {
        item_name: "milk",
        classification: {
          item_type: "dairy",
          item_group: "Milk",
          zone: "Dairy & Refrigerated",
        },
      },
      user: { id: 7 },
    };
    const res = createResponse();

    await controller.setClassification(req, res);

    expect(List.upsertClassification).toHaveBeenCalledWith(
      "1",
      "2",
      99,
      expect.objectContaining({
        item_type: "dairy",
        item_group: "Milk",
        zone: "Dairy & Refrigerated",
        confidence: 1.0,
        source: "user",
      })
    );
    expect(res.status).not.toHaveBeenCalledWith(400);
    expect(res.json).toHaveBeenCalledWith(
      expect.objectContaining({
        message: "Classification set",
        classification: {
          item_type: "dairy",
          item_group: "Milk",
          zone: "Dairy & Refrigerated",
        },
      })
    );
  });

  test("accepts zone-only classification updates", async () => {
    const req = {
      params: { householdId: "1", storeId: "2" },
      body: {
        item_name: "milk",
        classification: {
          zone: "Checkout Area",
        },
      },
      user: { id: 7 },
    };
    const res = createResponse();

    await controller.setClassification(req, res);

    expect(List.upsertClassification).toHaveBeenCalledWith(
      "1",
      "2",
      99,
      expect.objectContaining({
        item_type: null,
        item_group: null,
        zone: "Checkout Area",
      })
    );
    expect(res.status).not.toHaveBeenCalledWith(400);
  });

  test("rejects invalid item_type", async () => {
    const req = {
      params: { householdId: "1", storeId: "2" },
      body: {
        item_name: "milk",
        classification: {
          item_type: "invalid-type",
        },
      },
      user: { id: 7 },
    };
    const res = createResponse();

    await controller.setClassification(req, res);

    expect(List.upsertClassification).not.toHaveBeenCalled();
    expect(res.status).toHaveBeenCalledWith(400);
    expect(res.json).toHaveBeenCalledWith(
      expect.objectContaining({
        error: expect.objectContaining({
          message: "Invalid item_type",
        }),
      })
    );
  });

  test("rejects invalid item_group for selected item_type", async () => {
    const req = {
      params: { householdId: "1", storeId: "2" },
      body: {
        item_name: "milk",
        classification: {
          item_type: "dairy",
          item_group: "Bread",
        },
      },
      user: { id: 7 },
    };
    const res = createResponse();

    await controller.setClassification(req, res);

    expect(List.upsertClassification).not.toHaveBeenCalled();
    expect(res.status).toHaveBeenCalledWith(400);
    expect(res.json).toHaveBeenCalledWith(
      expect.objectContaining({
        error: expect.objectContaining({
          message: "Invalid item_group for selected item_type",
        }),
      })
    );
  });

  test("rejects invalid zone", async () => {
    const req = {
      params: { householdId: "1", storeId: "2" },
      body: {
        item_name: "milk",
        classification: {
          zone: "Space Aisle",
        },
      },
      user: { id: 7 },
    };
    const res = createResponse();

    await controller.setClassification(req, res);

    expect(List.upsertClassification).not.toHaveBeenCalled();
    expect(res.status).toHaveBeenCalledWith(400);
    expect(res.json).toHaveBeenCalledWith(
      expect.objectContaining({
        error: expect.objectContaining({
          message: "Invalid zone",
        }),
      })
    );
  });

  test("accepts legacy string classification values", async () => {
    const req = {
      params: { householdId: "1", storeId: "2" },
      body: {
        item_name: "milk",
        classification: "beverages",
      },
      user: { id: 7 },
    };
    const res = createResponse();

    await controller.setClassification(req, res);

    expect(List.upsertClassification).toHaveBeenCalledWith(
      "1",
      "2",
      99,
      expect.objectContaining({
        item_type: "beverage",
        item_group: null,
        zone: null,
      })
    );
    expect(res.status).not.toHaveBeenCalledWith(400);
  });
});