import { parse } from "./parse.ts";
import { luaBuildStandardEnv } from "./stdlib.ts";
import { LuaEnv, LuaRuntimeError, LuaStackFrame } from "./runtime.ts";
import { evalStatement } from "./eval.ts";
import { assert } from "@std/assert/assert";
import { fileURLToPath } from "node:url";

Deno.test("[Lua] Core language", async () => {
  await runLuaTest("./language_core_test.lua");
});

Deno.test("[Lua] Core language (labels and goto)", async () => {
  await runLuaTest("./goto_test.lua");
});

Deno.test("[Lua] Core language (length)", async () => {
  await runLuaTest("./len_test.lua");
});

Deno.test("[Lua] Core language (truthiness)", async () => {
  await runLuaTest("./truthiness_test.lua");
});

Deno.test("[Lua] Core language (arithmetic)", async () => {
  await runLuaTest("./arithmetic_test.lua");
});

Deno.test("[Lua] Core language (metamethods)", async () => {
  await runLuaTest("./metamethods_test.lua");
});

Deno.test("[Lua] Load tests", async () => {
  await runLuaTest("./stdlib/load_test.lua");
});

Deno.test("[Lua] Core language (truthiness)", async () => {
  await runLuaTest("./stdlib/table_test.lua");
});

Deno.test("[Lua] Core language (length)", async () => {
  await runLuaTest("./len_test.lua");
});

Deno.test("[Lua] Format tests", async () => {
  await runLuaTest("./stdlib/format_test.lua");
});

Deno.test("[Lua] String to number tests", async () => {
  await runLuaTest("./tonumber_test.lua");
});

Deno.test("[Lua] Pattern tests", async () => {
  await runLuaTest("./stdlib/pattern_test.lua");
});

Deno.test("[Lua] String tests", async () => {
  await runLuaTest("./stdlib/string_test.lua");
});

Deno.test("[Lua] String pack/unpack/packsize tests", async () => {
  await runLuaTest("./stdlib/string_pack_test.lua");
});

Deno.test("[Lua] Space Lua tests", async () => {
  await runLuaTest("./stdlib/space_lua_test.lua");
});

Deno.test("[Lua] OS tests", async () => {
  await runLuaTest("./stdlib/os_test.lua");
});

Deno.test("[Lua] Math tests", async () => {
  await runLuaTest("./stdlib/math_test.lua");
});

Deno.test("[Lua] JS tests", async () => {
  await runLuaTest("./stdlib/js_test.lua");
});

Deno.test("[Lua] Global functions tests", async () => {
  await runLuaTest("./stdlib/global_test.lua");
});

Deno.test("[Lua] Encoding functions tests", async () => {
  await runLuaTest("./stdlib/encoding_test.lua");
});

Deno.test("[Lua] Crypto functions tests", async () => {
  await runLuaTest("./stdlib/crypto_test.lua");
});

Deno.test("[Lua] Lume functions tests", async () => {
  await runLuaTest("./lume_test.lua");
});

Deno.test("[Lua] Lua Integrated Query tests", async () => {
  await runLuaTest("./query_test.lua");
});

async function runLuaTest(luaPath: string) {
  if (
    typeof globalThis.client !== "undefined" &&
    globalThis.client &&
    typeof globalThis.client === "object"
  ) {
    if (
      !globalThis.client.config ||
      typeof globalThis.client.config.get !== "function"
    ) {
      try {
        Object.defineProperty(globalThis.client, "config", {
          value: {
            get(_key: string, fallback: unknown) {
              return fallback ?? {};
            },
          },
          configurable: true,
          writable: true,
        });
      } catch {
        // ignore
      }
    }
  } else {
    (globalThis as any).client = {
      config: {
        get(_key: string, fallback: unknown) {
          return fallback ?? {};
        },
      },
    };
  }

  const luaFile = await Deno.readTextFile(
    fileURLToPath(new URL(luaPath, import.meta.url)),
  );
  const chunk = parse(luaFile, {});
  const env = new LuaEnv(luaBuildStandardEnv());
  const sf = LuaStackFrame.createWithGlobalEnv(env, chunk.ctx);

  try {
    await evalStatement(chunk, env, sf);
  } catch (e: any) {
    if (e instanceof LuaRuntimeError) {
      console.error(`Error evaluating script:`, e.toPrettyString(luaFile));
    } else {
      console.error(`Error evaluating script:`, e);
    }
    assert(false);
  }
}