import { assertEquals } from "https://deno.land/std@0.224.0/assert/mod.ts";
import { CreateUserReq, Users } from "./users.ts";
import { MockDb } from "./mockdb.ts";
import { assertNotEquals } from "https://deno.land/std@0.224.0/assert/assert_not_equals.ts";
import { MockCrypto } from "./crypto.ts";

const createUserReq: CreateUserReq = {
    username: "testuser",
    password: "1234",
};

Deno.test("createUser: no username", async () => {
    const db = new MockDb();
    const users = new Users(db, new MockCrypto());
    const result = await users.createUser({
        ...createUserReq,
        username: "",
    });
    assertEquals(result.ok, false);
    if (result.ok) return;
    assertEquals(result.error, "username empty");
});

Deno.test("createUser: no password", async () => {
    const db = new MockDb();
    const users = new Users(db, new MockCrypto());
    const result = await users.createUser({
        ...createUserReq,
        password: "",
    });
    assertEquals(result.ok, false);
    if (result.ok) return;
    assertEquals(result.error, "password empty");
});

Deno.test("createUser: add to database", async () => {
    const db = new MockDb();
    const users = new Users(db, new MockCrypto());
    {
        const result = await db.userWithUsername(createUserReq.username);
        assertEquals(result.ok, true);
        if (!result.ok) return;
        assertEquals(result.value.some, false);
    }
    const createResult = await users.createUser(createUserReq);
    assertEquals(createResult.ok, true);
    {
        const result = await db.userWithUsername(createUserReq.username);
        assertEquals(result.ok, true);
        if (!result.ok) return;
        assertEquals(result.value.some, true);
    }
});

Deno.test("createUser: taken username", async () => {
    const db = new MockDb();
    const users = new Users(db, new MockCrypto());
    {
        const result = await users.createUser(createUserReq);
        assertEquals(result.ok, true);
    }
    {
        const result = await users.createUser(createUserReq);
        assertEquals(result.ok, false);
        if (result.ok) return;
        assertEquals(result.error, "username taken");
    }
});

Deno.test("createUser: add username to database", async () => {
    const db = new MockDb();
    const users = new Users(db, new MockCrypto());
    const createResult = await users.createUser(createUserReq);
    assertEquals(createResult.ok, true);
    const result = await db.userWithUsername(createUserReq.username);
    assertEquals(result.ok, true);
    if (!result.ok) return;
    assertEquals(result.value.some, true);
    if (!result.value.some) return;
    assertEquals(result.value.value.username, createUserReq.username);
});

Deno.test("createUser: add password hash to database", async () => {
    const db = new MockDb();
    const users = new Users(db, new MockCrypto());
    const createResult = await users.createUser(createUserReq);
    assertEquals(createResult.ok, true);
    const result = await db.userWithUsername(createUserReq.username);
    assertEquals(result.ok, true);
    if (!result.ok) return;
    assertEquals(result.value.some, true);
    if (!result.value.some) return;
    assertNotEquals(result.value.value.passwordHash, "");
    assertNotEquals(result.value.value.passwordHash, createUserReq.password);
});

Deno.test("createUser: database error -> internal error", async () => {
    const db = new MockDb();
    db.inErronousState = true;
    const users = new Users(db, new MockCrypto());
    const result = await users.createUser(createUserReq);
    assertEquals(result.ok, false);
    if (result.ok) return;
    assertEquals(result.error, "internal");
});

Deno.test("userInfo: not found", async () => {
    const db = new MockDb();
    const users = new Users(db, new MockCrypto());
    const result = await users.userInfo(0);
    assertEquals(result.ok, false);
    if (result.ok) return;
    assertEquals(result.error, "not found");
});

Deno.test("userInfo: find created", async () => {
    const db = new MockDb();
    const users = new Users(db, new MockCrypto());
    {
        const result = await users.createUser(createUserReq);
        assertEquals(result.ok, true);
    }
    {
        const result = await users.userInfo(0);
        assertEquals(result.ok, true);
        if (!result.ok) return;
        assertEquals(result.value, {
            id: 0,
            username: createUserReq.username,
        });
    }
});