// Request validators and row guards in model/interfaces.ts and model/db.ts.
import "./setup.ts";
import { assert, assertEquals, assertFalse } from "@std/assert";
import {
  isAuthPayload,
  isCreateCategoryRequest,
  isCreateCommentRequest,
  isCreatePlaylistRequest,
  isCreateUrlDumpRequest,
  isLoginUserRequest,
  isPasswordResetPayload,
  isReorderPlaylistRequest,
  isRole,
  isUpdateCategoryRequest,
  isUpdateCommentRequest,
  isUpdateDumpRequest,
  isUpdatePlaylistRequest,
  isUpdateUserRequest,
  validateRegisterUserRequest,
} from "../model/interfaces.ts";
import { dumpApiToRow, type DumpRow, dumpRowToApi } from "../model/db.ts";

Deno.test("isRole", () => {
  assert(isRole("user") && isRole("moderator") && isRole("admin"));
  assertFalse(isRole("root"));
  assertFalse(isRole(undefined));
});

Deno.test("isLoginUserRequest", () => {
  assert(isLoginUserRequest({ username: "a", password: "b" }));
  assertFalse(isLoginUserRequest({ username: "a" }));
  assertFalse(isLoginUserRequest({ username: 1, password: "b" }));
  assertFalse(isLoginUserRequest(null));
});

Deno.test("validateRegisterUserRequest", () => {
  const ok = {
    username: "a_b_1",
    password: "12345678",
    email: "a@b.co",
    inviteToken: "t",
  };
  assertEquals(validateRegisterUserRequest(ok), null);
  assertEquals(
    validateRegisterUserRequest({ ...ok, email: "a@b" }),
    "Invalid email address",
  );
  assert(
    validateRegisterUserRequest({ ...ok, username: "" })?.startsWith(
      "Username",
    ),
  );
  assert(
    validateRegisterUserRequest({ ...ok, username: "é" })?.startsWith(
      "Username",
    ),
  );
  assertEquals(validateRegisterUserRequest({}), "Invalid request");
});

Deno.test("isUpdateUserRequest", () => {
  assert(isUpdateUserRequest({}));
  assert(isUpdateUserRequest({ description: null }));
  assert(isUpdateUserRequest({ description: "hi", email: "a@b.co" }));
  assertFalse(isUpdateUserRequest({ description: "x".repeat(2001) }));
  assertFalse(isUpdateUserRequest({ email: "nope" }));
  assertFalse(isUpdateUserRequest({ username: "no spaces" }));
  assertFalse(isUpdateUserRequest({ password: "short" }));
  assertFalse(isUpdateUserRequest({ role: "root" }));
  assertFalse(isUpdateUserRequest("string"));
});

Deno.test("isAuthPayload refuses purpose-scoped tokens", () => {
  const base = { userId: "u", username: "n", role: "user", exp: 1 };
  assert(isAuthPayload(base));
  assertFalse(isAuthPayload({ ...base, purpose: "media" }));
  assertFalse(isAuthPayload({ ...base, role: "root" }));
  assertFalse(isAuthPayload({ ...base, exp: "1" }));
  assert(isPasswordResetPayload({ purpose: "password-reset", userId: "u" }));
  assertFalse(isPasswordResetPayload({ purpose: "media", userId: "u" }));
});

Deno.test("comment requests: non-blank, bounded, optional parent", () => {
  assert(isCreateCommentRequest({ body: "hi" }));
  assert(isCreateCommentRequest({ body: "hi", parentId: null }));
  assert(isCreateCommentRequest({ body: "hi", parentId: "p" }));
  assertFalse(isCreateCommentRequest({ body: "   " }));
  assertFalse(isCreateCommentRequest({ body: "x".repeat(5001) }));
  assertFalse(isCreateCommentRequest({ body: "hi", parentId: 3 }));
  assert(isUpdateCommentRequest({ body: "edit" }));
  assertFalse(isUpdateCommentRequest({ body: "" }));
});

Deno.test("playlist requests", () => {
  assert(isCreatePlaylistRequest({ title: "t", isPublic: true }));
  assert(
    isCreatePlaylistRequest({ title: "t", isPublic: false, description: null }),
  );
  assertFalse(isCreatePlaylistRequest({ title: "", isPublic: true }));
  assertFalse(
    isCreatePlaylistRequest({ title: "x".repeat(101), isPublic: true }),
  );
  assertFalse(isCreatePlaylistRequest({ title: "t" }));
  assertFalse(
    isCreatePlaylistRequest({
      title: "t",
      isPublic: true,
      description: "x".repeat(2001),
    }),
  );
  assert(isUpdatePlaylistRequest({}));
  assert(isUpdatePlaylistRequest({ description: null }));
  assertFalse(isUpdatePlaylistRequest({ title: "" }));
  assertFalse(isUpdatePlaylistRequest({ isPublic: "yes" }));
  assert(isReorderPlaylistRequest({ dumpIds: [] }));
  assertFalse(isReorderPlaylistRequest({ dumpIds: [1] }));
  assertFalse(isReorderPlaylistRequest({}));
});

Deno.test("dump requests", () => {
  assert(isCreateUrlDumpRequest({ url: "https://x" }));
  assert(
    isCreateUrlDumpRequest({
      url: "https://x",
      title: "t",
      comment: null,
      isPrivate: true,
      categoryIds: ["a"],
    }),
  );
  assertFalse(isCreateUrlDumpRequest({}));
  assertFalse(
    isCreateUrlDumpRequest({ url: "https://x", title: "x".repeat(201) }),
  );
  assertFalse(
    isCreateUrlDumpRequest({ url: "https://x", comment: "x".repeat(5001) }),
  );
  assertFalse(isCreateUrlDumpRequest({ url: "https://x", isPrivate: "true" }));
  assertFalse(isCreateUrlDumpRequest({ url: "https://x", categoryIds: [1] }));

  assert(isUpdateDumpRequest({}));
  assert(isUpdateDumpRequest({ comment: null, url: null }));
  assertFalse(isUpdateDumpRequest({ title: "   " }));
  assertFalse(isUpdateDumpRequest({ title: "x".repeat(201) }));
  assertFalse(isUpdateDumpRequest({ categoryIds: "a" }));
});

Deno.test("category requests", () => {
  assert(isCreateCategoryRequest({ slug: "a", name: "A" }));
  assert(isCreateCategoryRequest({ slug: "a", name: "A", position: 2 }));
  assertFalse(isCreateCategoryRequest({ slug: "a" }));
  assertFalse(isCreateCategoryRequest({ slug: "a", name: "A", position: "2" }));
  assert(isUpdateCategoryRequest({}));
  assertFalse(isUpdateCategoryRequest({ name: 1 }));
});

Deno.test("dump rows round-trip through the API shape", () => {
  const row: DumpRow = {
    id: "id",
    kind: "url",
    title: "t",
    slug: "t-id",
    comment: null,
    user_id: "u",
    created_at: "2024-01-01T00:00:00.000Z",
    updated_at: null,
    url: "https://x",
    rich_content: JSON.stringify({ type: "generic", url: "https://x" }),
    file_name: null,
    file_mime: null,
    file_size: null,
    vote_count: 3,
    comment_count: 2,
    is_private: 1,
    custom_thumbnail_mime: null,
  };
  const dump = dumpRowToApi(row);
  assertEquals(dump.isPrivate, true);
  assertEquals(dump.richContent?.url, "https://x");
  assertEquals(dump.comment, undefined);
  assertEquals(dumpApiToRow(dump), row);
});