import ava, { TestInterface } from 'ava';
import { Mongoose, Types } from 'mongoose';

import { Factory } from '../../../database/factory';
import * as testUtils from '../../../test/utils';
import { User, UserProps } from '../../../app/user';
import { Recipe } from '../../recipe';
import { createContext } from '../../../test/utils/create-mock-context';
import { gqlCall } from '../../../test/utils/gqlCall';
import { RecipeProps } from '../recipe-model';
import { defineUserAbility } from '../../../server/authorization/user-authorization';
import {
  UserInputError,
  ForbiddenError,
  AuthenticationError,
} from 'apollo-server-micro';

//
// Setup
//

const test = ava as TestInterface<{ db: Mongoose }>;

test.before(async t => {
  await testUtils.setupDB(t);
});
test.afterEach.always(async t => {
  await testUtils.cleanupDB(t);
});
test.after.always(async t => {
  await testUtils.tearDownDB(t);
});

//
// Constants
//

const recipeQuery = `
query Recipe($id: ID) {
  recipe(id: $id) {
    id
    title
    ingredientList {
      nodes {
        ...on IngredientItem {
          node {
            name
          }
        }
        ...on IngredientGroup {
          heading
          nodes {
            node {
              name
            }
          }
        }
      }
    }
    owner {
      id
    }
  } 
}
`;

//
// Tests
//

test.only('Should return a recipe when the user is the owner', async t => {
  const user = await Factory.create<User>('user');
  const recipe = await Factory.create<Recipe, RecipeProps>('recipe', {
    ownerId: user.id,
  });
  const context = createContext({
    state: { user, abilities: defineUserAbility(user) },
  });
  const response = await gqlCall({
    source: recipeQuery,
    contextValue: context,
    variableValues: {
      id: recipe.id,
    },
  });

  t.falsy(response.errors);
  // correctly returns recipe data
  t.is(response.data.recipe.id, recipe.id);
  // correctly returns owner field
  t.is(response.data.recipe.owner.id, user.id);
});

test.serial(
  'Should return an error when the user is not logged in',
  async t => {
    const recipe = await Factory.create<Recipe>('recipe');
    const context = createContext({ state: { user: null } });
    const response = await gqlCall({
      source: recipeQuery,
      contextValue: context,
      variableValues: {
        id: recipe.id,
      },
    });
    t.truthy(response.errors.length > 0);
    t.true(response.errors[0].originalError instanceof AuthenticationError);
  }
);

test.serial(
  'Should return an error when the user does not own the recipe',
  async t => {
    const recipe = await Factory.create<Recipe>('recipe');
    const user = await Factory.create<User>('user');
    const context = createContext({
      state: { user, abilities: defineUserAbility(user) },
    });
    const response = await gqlCall({
      source: recipeQuery,
      contextValue: context,
      variableValues: {
        id: recipe.id,
      },
    });
    t.truthy(response.errors.length > 0);
    t.true(response.errors[0].originalError instanceof ForbiddenError);
  }
);

test.serial('Should return an error when the id is malformed', async t => {
  const recipe = await Factory.create<Recipe>('recipe');
  const user = await Factory.create<User>('user');
  const context = createContext({
    state: { user, abilities: defineUserAbility(user) },
  });
  const response = await gqlCall({
    source: recipeQuery,
    contextValue: context,
    variableValues: {
      id: 'malfored',
    },
  });
  t.truthy(response.errors.length > 0);
  t.true(response.errors[0].originalError instanceof UserInputError);
});