"use server";

import { modrinthClient, curseforgeClient } from "./clients";
import { getLoaders, getGameVersions as getModrinthGameVersions } from "@/lib/modrinth";
import { getVersionTypes, getGameVersions, getMinecraftVersions } from "@/lib/curseforge";
import { SemVer } from "@/lib/utils/templates/semver";
import { EnvironmentSchema } from "@/types";

const ENVIRONMENT_LABELS: Record<string, string> = {
  unknown: "Unknown environment",
  client_only: "Client-side only",
  server_only: "Server-side only (singleplayer compatible)",
  dedicated_server_only: "Dedicated server only",
  client_and_server: "Required on both",
  server_only_client_optional: "Optional on client",
  client_only_server_optional: "Optional on server",
  client_or_server_prefers_both: "Optional on both (prefers both)",
  client_or_server: "Optional on both (either side)",
  singleplayer_only: "Singleplayer only",
};

/**
 * 获取 Modrinth 支持的加载器名称列表。
 * 用于 ConfigModal 中 loaders 多选下拉框的选项。
 */
export async function getModrinthLoaders(): Promise<string[]> {
  const loaders = await getLoaders(modrinthClient);
  return loaders.map((l) => l.name);
}

/**
 * 获取 Modrinth 支持的 Minecraft 版本号列表。
 * 用于 ConfigModal 中 game_versions 多选下拉框的选项。
 */
export async function getModrinthMcVersions(): Promise<string[]> {
  const versions = await getModrinthGameVersions(modrinthClient);
  return versions
    .filter((v) => v.version_type === "release")
    .map((v) => v.version);
}

/**
 * 获取 Modrinth 运行环境枚举值，转为 Ant Design Select 的选项格式。
 * 前端使用 OptGroup 分组显示（Client / Server / Both / Other）。
 */
export async function getModrinthEnvironments(): Promise<
  { value: string; label: string }[]
> {
  return EnvironmentSchema.options.map((value) => ({
    value,
    label: ENVIRONMENT_LABELS[value] ?? value,
  }));
}

/**
 * 获取 CurseForge 的运行环境和加载器选项。
 * 从 Game Version Types 中找到 Environment / Modloader 分类 ID，
 * 再从 Game Versions 中按 gameVersionTypeID 过滤出对应值。
 */
export async function getCurseForgeMeta(): Promise<{
  environments: string[];
  loaders: string[];
}> {
  const [versionTypes, gameVersions] = await Promise.all([
    getVersionTypes(curseforgeClient),
    getGameVersions(curseforgeClient),
  ]);

  const environmentTypeId = versionTypes.find(
    (t) => t.name === "Environment",
  )?.id;
  const modloaderTypeId = versionTypes.find(
    (t) => t.name === "Modloader",
  )?.id;

  const environments =
    environmentTypeId != null
      ? gameVersions
          .filter((v) => v.gameVersionTypeID === environmentTypeId)
          .map((v) => v.name)
      : [];

  const loaders =
    modloaderTypeId != null
      ? gameVersions
          .filter((v) => v.gameVersionTypeID === modloaderTypeId)
          .map((v) => v.name)
      : [];

  return { environments, loaders };
}

/**
 * 获取 CurseForge 支持的 Minecraft 版本号列表。
 * 通过 /v1/minecraft/version 接口获取，
 * 并排除 versionString 包含 "preRelease" 的预发布版本。
 */
export async function getCurseForgeMcVersions(): Promise<string[]> {
  const versions = await getMinecraftVersions(curseforgeClient);
  return versions
    .filter((v) => {
      const sv = SemVer.parse(v.versionString);
      return sv.preRelease === null;
    })
    .map((v) => v.versionString);
}