src/app/api/user/actions.test.ts

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

describe("User Actions - Business Logic", () => {
  describe("User Update Flow Logic", () => {
    it("should return error response when user not found after update", () => {
      // Test the business logic: what happens when user is null after getUserById
      const user = null; // Simulating user not found

      const result = user
        ? {
            success: true,
            message: "User details updated successfully",
            user,
          }
        : {
            success: false,
            message: "User not found",
          };

      expect(result).toEqual({
        success: false,
        message: "User not found",
      });
    });

    it("should return success response when user found after update", () => {
      // Test the business logic: what happens when user exists after getUserById
      const user = {
        id: "user-1",
        name: "Test User",
        email: "test@example.com",
      };

      const result = user
        ? {
            success: true,
            message: "User details updated successfully",
            user,
          }
        : {
            success: false,
            message: "User not found",
          };

      expect(result).toEqual({
        success: true,
        message: "User details updated successfully",
        user,
      });
    });
  });

  describe("Password Update Validation Logic", () => {
    it("should prevent password update when user has no password account", () => {
      // Test the business logic: hasPassword check
      const hasPassword = false; // User has only OAuth accounts

      const result = hasPassword
        ? { success: true, message: "Password can be updated" }
        : {
            success: false,
            message: "User has no password based account",
          };

      expect(result).toEqual({
        success: false,
        message: "User has no password based account",
      });
    });

    it("should allow password update when user has password account", () => {
      // Test the business logic: hasPassword check
      const hasPassword = true; // User has credential account

      const result = hasPassword
        ? { success: true, message: "Password can be updated" }
        : {
            success: false,
            message: "User has no password based account",
          };

      expect(result).toEqual({
        success: true,
        message: "Password can be updated",
      });
    });
  });

  describe("Error Handling Logic", () => {
    it("should format delete user error response correctly", () => {
      // Test the business logic: error handling in deleteUserAction
      const result = {
        success: false,
        message: "Failed to delete user",
      };

      expect(result.success).toBe(false);
      expect(result.message).toBe("Failed to delete user");
    });

    it("should format delete user success response correctly", () => {
      // Test the business logic: success response in deleteUserAction
      const result = {
        success: true,
        message: "User deleted successfully",
        redirect: "/admin",
      };

      expect(result.success).toBe(true);
      expect(result.message).toBe("User deleted successfully");
      expect(result.redirect).toBe("/admin");
    });

    it("should format password update error response correctly", () => {
      // Test the business logic: error handling in updateUserPasswordAction
      const result = {
        success: false,
        message: "Failed to update user password",
      };

      expect(result.success).toBe(false);
      expect(result.message).toBe("Failed to update user password");
    });

    it("should format password update success response correctly", () => {
      // Test the business logic: success response in updateUserPasswordAction
      const result = {
        success: true,
        message: "User password updated successfully",
      };

      expect(result.success).toBe(true);
      expect(result.message).toBe("User password updated successfully");
    });
  });

  describe("Data Flow Logic", () => {
    it("should extract correct fields from update user data", () => {
      // Test the business logic: data extraction
      const data = {
        userId: "user-123",
        name: "John Doe",
        email: "john@example.com",
        extraField: "ignored", // should be ignored
      };

      const { name, email } = data;
      const updatePayload = { userId: data.userId, name, email };

      expect(updatePayload).toEqual({
        userId: "user-123",
        name: "John Doe",
        email: "john@example.com",
        // extraField should not be included
      });
      expect(updatePayload).not.toHaveProperty("extraField");
    });

    it("should extract correct fields from password update data", () => {
      // Test the business logic: password data extraction
      const data = {
        userId: "user-123",
        newPassword: "newPass123!",
        confirmPassword: "newPass123!", // should be ignored in final payload
        extraField: "ignored",
      };

      const { userId, newPassword } = data;
      const updatePayload = { userId, newPassword };

      expect(updatePayload).toEqual({
        userId: "user-123",
        newPassword: "newPass123!",
        // confirmPassword should not be included in API call
      });
      expect(updatePayload).not.toHaveProperty("confirmPassword");
      expect(updatePayload).not.toHaveProperty("extraField");
    });
  });
});