batchCooking/apps/web/cypress/e2e/auth.cy.ts

import { ErrorCode } from "@batch-cooking/shared";

// Mocks the API via cy.intercept — this job doesn't run a live backend (see
// .github/workflows/ci.yml), and it keeps these specs focused on frontend
// behavior. Backend behavior itself is covered by apps/api's Mocha/Cucumber
// suites against a real database.

describe("Signup", () => {
  it("creates a profile and lands on the home page", () => {
    cy.intercept("GET", "**/auth/me", { statusCode: 401 });
    cy.intercept("GET", "**/planning/current", { statusCode: 200, body: null });
    cy.intercept("POST", "**/auth/signup", {
      statusCode: 201,
      body: {
        id: 1,
        firstName: "Alice",
        lastName: "Martin",
        email: "alice@example.com",
        tokenVersion: 0,
        houseId: 1,
        dietId: null,
      },
    }).as("signup");

    cy.visit("/signup");
    cy.get("#firstName").type("Alice");
    cy.get("#lastName").type("Martin");
    cy.get("#email").type("alice@example.com");
    cy.get("#password").type("correct-horse-battery-staple");
    cy.contains("button", "Créer mon profil").click();

    cy.wait("@signup");
    cy.url().should("not.include", "/signup");
    cy.contains("Bonjour Alice").should("be.visible");
  });

  it("shows a client-side validation error without calling the API", () => {
    cy.intercept("GET", "**/auth/me", { statusCode: 401 });
    cy.intercept("POST", "**/auth/signup").as("signup");

    cy.visit("/signup");
    cy.get("#firstName").type("A");
    cy.get("#lastName").type("B");
    cy.get("#email").type("a@example.com");
    cy.get("#password").type("short");
    cy.contains("button", "Créer mon profil").click();

    cy.contains("8 caractères minimum").should("be.visible");
    cy.get("@signup.all").should("have.length", 0);
  });

  it("shows the API's error when the email is already taken", () => {
    cy.intercept("GET", "**/auth/me", { statusCode: 401 });
    cy.intercept("POST", "**/auth/signup", {
      statusCode: 409,
      body: { code: ErrorCode.EMAIL_ALREADY_IN_USE, message: "Email already in use" },
    }).as("signup");

    cy.visit("/signup");
    cy.get("#firstName").type("Alice");
    cy.get("#lastName").type("Martin");
    cy.get("#email").type("alice@example.com");
    cy.get("#password").type("correct-horse-battery-staple");
    cy.contains("button", "Créer mon profil").click();

    cy.wait("@signup");
    cy.contains("Cet email est déjà utilisé").should("be.visible");
  });
});

describe("Login", () => {
  it("logs in and lands on the home page", () => {
    cy.intercept("GET", "**/auth/me", { statusCode: 401 });
    cy.intercept("GET", "**/planning/current", { statusCode: 200, body: null });
    cy.intercept("POST", "**/auth/login", {
      statusCode: 200,
      body: {
        id: 1,
        firstName: "Alice",
        lastName: "Martin",
        email: "alice@example.com",
        tokenVersion: 0,
        houseId: 1,
        dietId: null,
      },
    }).as("login");

    cy.visit("/login");
    cy.get("#email").type("alice@example.com");
    cy.get("#password").type("correct-horse-battery-staple");
    cy.contains("button", "Se connecter").click();

    cy.wait("@login");
    cy.contains("Bonjour Alice").should("be.visible");
  });

  it("shows an error on invalid credentials", () => {
    cy.intercept("GET", "**/auth/me", { statusCode: 401 });
    cy.intercept("POST", "**/auth/login", {
      statusCode: 401,
      body: { code: ErrorCode.INVALID_CREDENTIALS, message: "Invalid email or password" },
    }).as("login");

    cy.visit("/login");
    cy.get("#email").type("alice@example.com");
    cy.get("#password").type("wrong-password");
    cy.contains("button", "Se connecter").click();

    cy.wait("@login");
    cy.contains("Email ou mot de passe incorrect").should("be.visible");
  });
});

describe("Already authenticated", () => {
  it("redirects away from /login to the home page", () => {
    cy.intercept("GET", "**/auth/me", {
      statusCode: 200,
      body: {
        id: 1,
        firstName: "Alice",
        lastName: "Martin",
        email: "alice@example.com",
        tokenVersion: 0,
        houseId: 1,
        dietId: null,
      },
    });
    cy.intercept("GET", "**/planning/current", { statusCode: 200, body: null });

    cy.visit("/login");
    cy.url().should("not.include", "/login");
    cy.contains("Bonjour Alice").should("be.visible");
  });

  it("logs out and returns to the login page", () => {
    cy.intercept("GET", "**/auth/me", {
      statusCode: 200,
      body: {
        id: 1,
        firstName: "Alice",
        lastName: "Martin",
        email: "alice@example.com",
        tokenVersion: 0,
        houseId: 1,
        dietId: null,
      },
    });
    cy.intercept("GET", "**/planning/current", { statusCode: 200, body: null });
    cy.intercept("POST", "**/auth/logout", { statusCode: 204 }).as("logout");

    cy.visit("/");
    cy.contains("button", "Se déconnecter").click();

    cy.wait("@logout");
    cy.url().should("include", "/login");
  });
});