import { describe, expect, it } from "vitest";

import type { UserView } from "@/stores/user/user-view";

import {
  getProfileViewModel,
  getProfileWalletView,
  normalizeProfileCount,
} from "../profile-view-model";

const baseUser: UserView = {
  id: "user-1",
  username: "Chase",
  countryCode: "US",
  creditBalance: 120,
  dailyFreeChatLimit: 30,
  dailyFreeChatRemaining: 24,
  dailyFreePrivateLimit: 4,
  dailyFreePrivateRemaining: 2,
  isVip: false,
};

describe("getProfileViewModel", () => {
  it("derives guest state for logged-out users", () => {
    const view = getProfileViewModel({
      loginStatus: "notLoggedIn",
      user: {
        currentUser: null,
        avatarUrl: null,
        creditBalance: 0,
      },
    });

    expect(view.state).toBe("guest");
    expect(view.canActivateVip).toBe(true);
    expect(view.canShowSettings).toBe(false);
  });

  it("derives member state and shows VIP activation for non-VIP users", () => {
    const view = getProfileViewModel({
      loginStatus: "email",
      user: {
        currentUser: baseUser,
        avatarUrl: "https://example.com/avatar.png",
        creditBalance: 120,
      },
    });

    expect(view.state).toBe("member");
    expect(view.name).toBe("Chase");
    expect(view.avatarUrl).toBe("https://example.com/avatar.png");
    expect(view.canActivateVip).toBe(true);
    expect(view.canShowSettings).toBe(true);
  });

  it("derives VIP state and hides VIP activation for VIP users", () => {
    const view = getProfileViewModel({
      loginStatus: "email",
      user: {
        currentUser: { ...baseUser, isVip: true },
        avatarUrl: null,
        creditBalance: 120,
      },
    });

    expect(view.state).toBe("vip");
    expect(view.canActivateVip).toBe(false);
  });

  it("keeps Guest users in the signed-out profile state", () => {
    const view = getProfileViewModel({
      loginStatus: "guest",
      user: {
        currentUser: null,
        avatarUrl: null,
        creditBalance: null,
      },
    });

    expect(view.state).toBe("guest");
    expect(view.name).toBe("User name");
    expect(view.isInitializingUser).toBe(false);
  });
});

describe("getProfileWalletView", () => {
  it("normalizes missing, negative, and fractional wallet values", () => {
    const view = getProfileWalletView({
      currentUser: {
        ...baseUser,
        dailyFreeChatLimit: -1,
        dailyFreeChatRemaining: 12.9,
        dailyFreePrivateLimit: Number.NaN,
        dailyFreePrivateRemaining: 3.7,
      },
      avatarUrl: null,
      creditBalance: -42.8,
    });

    expect(view).toEqual({
      creditBalance: 0,
      dailyFreeChatLimit: 0,
      dailyFreeChatRemaining: 12,
      dailyFreePrivateLimit: 0,
      dailyFreePrivateRemaining: 3,
    });
  });

  it("normalizes undefined and null counts to zero", () => {
    expect(normalizeProfileCount(undefined)).toBe(0);
    expect(normalizeProfileCount(null)).toBe(0);
  });
});