/**
 * OpsxAPI 集合数据模型 —— UI / 导入导出 / 持久化共用的唯一事实源。
 */

export type RequestMethod =
  | "GET"
  | "POST"
  | "PUT"
  | "PATCH"
  | "DELETE"
  | "HEAD"
  | "OPTIONS";

export const REQUEST_METHODS: RequestMethod[] = [
  "GET",
  "POST",
  "PUT",
  "PATCH",
  "DELETE",
  "HEAD",
  "OPTIONS",
];

export type RequestKind = "http" | "graphql" | "websocket" | "sse" | "socketio" | "mqtt";

export const REQUEST_KINDS: RequestKind[] = [
  "http",
  "graphql",
  "websocket",
  "sse",
  "socketio",
  "mqtt",
];

export const KIND_LABELS: Record<RequestKind, string> = {
  http: "HTTP",
  graphql: "GraphQL",
  websocket: "WebSocket",
  sse: "SSE",
  socketio: "Socket.IO",
  mqtt: "MQTT",
};

/** 键值行：Params / Headers / Cookies / 表单 / 环境变量共用 */
export type KVRow = {
  id: string;
  key: string;
  value: string;
  enabled: boolean;
  description?: string;
};

export type BodyMode =
  | "none"
  | "json"
  | "xml"
  | "text"
  | "html"
  | "urlencoded"
  | "form-data";

export const BODY_MODE_LABELS: Record<BodyMode, string> = {
  none: "none",
  json: "JSON",
  xml: "XML",
  text: "Text",
  html: "HTML",
  urlencoded: "x-www-form-urlencoded",
  "form-data": "form-data",
};

export const RAW_BODY_MODES: BodyMode[] = ["json", "xml", "text", "html"];

export type AuthMode = "none" | "bearer" | "basic" | "apikey";

export type AuthConfig = {
  mode: AuthMode;
  bearer?: string;
  basicUser?: string;
  basicPass?: string;
  apiKeyName?: string;
  apiKeyValue?: string;
  apiKeyIn?: "header" | "query";
};

export type HttpRequestData = {
  kind: "http";
  method: RequestMethod;
  url: string;
  query: KVRow[];
  headers: KVRow[];
  cookies: KVRow[];
  auth: AuthConfig;
  bodyMode: BodyMode;
  bodyRaw: string;
  bodyForm: KVRow[];
};

export type GraphqlRequestData = {
  kind: "graphql";
  url: string;
  headers: KVRow[];
  auth: AuthConfig;
  query: string;
  variables: string;
};

export type WebsocketRequestData = {
  kind: "websocket";
  url: string;
  headers: KVRow[];
  protocols: string;
};

export type SseRequestData = {
  kind: "sse";
  url: string;
  headers: KVRow[];
  query: KVRow[];
  auth: AuthConfig;
  lastEventId: string;
  /** 仅解析 data: 行为 JSON */
  dataOnly: boolean;
};

export type SocketIoRequestData = {
  kind: "socketio";
  url: string;
  /** 额外连接参数（JSON：auth / transports / path …） */
  options: string;
  /** 监听的服务端事件名 */
  listenEvents: string[];
  sendEvent: string;
  sendArgs: string;
};

export type MqttRequestData = {
  kind: "mqtt";
  brokerUrl: string;
  username: string;
  password: string;
  clientId: string;
  /** 订阅主题，逗号分隔 */
  subscribeTopics: string;
  publishTopic: string;
  publishPayload: string;
  qos: 0 | 1 | 2;
};

export type RequestData =
  | HttpRequestData
  | GraphqlRequestData
  | WebsocketRequestData
  | SseRequestData
  | SocketIoRequestData
  | MqttRequestData;

export type RequestDataOf<K extends RequestKind> = Extract<RequestData, { kind: K }>;

export type RequestNodeBase = {
  id: string;
  type: "request";
  name: string;
  description?: string;
  createdAt: number;
  updatedAt: number;
};

export type HttpApiNode = RequestNodeBase & { kind: "http"; data: HttpRequestData };
export type GraphqlApiNode = RequestNodeBase & { kind: "graphql"; data: GraphqlRequestData };
export type WebsocketApiNode = RequestNodeBase & { kind: "websocket"; data: WebsocketRequestData };
export type SseApiNode = RequestNodeBase & { kind: "sse"; data: SseRequestData };
export type SocketIoApiNode = RequestNodeBase & { kind: "socketio"; data: SocketIoRequestData };
export type MqttApiNode = RequestNodeBase & { kind: "mqtt"; data: MqttRequestData };

/** 判别联合：`node.kind === "http"` 时自动收窄 data 类型 */
export type RequestNode =
  | HttpApiNode
  | GraphqlApiNode
  | WebsocketApiNode
  | SseApiNode
  | SocketIoApiNode
  | MqttApiNode;

export type FolderNode = {
  id: string;
  type: "folder";
  name: string;
  description?: string;
  children: CollectionNode[];
  createdAt: number;
  updatedAt: number;
};

export type CollectionNode = RequestNode | FolderNode;

/** 一个集合（项目），本身是一个顶层目录 */
export type Collection = {
  id: string;
  type: "collection";
  name: string;
  description?: string;
  children: CollectionNode[];
  createdAt: number;
  updatedAt: number;
};

export type Environment = {
  id: string;
  name: string;
  variables: KVRow[];
};

export type HistoryEntry = {
  id: string;
  at: number;
  kind: RequestKind;
  label: string;
  method?: RequestMethod;
  url: string;
  status?: number;
  durationMs?: number;
  ok: boolean;
  /** 关联的请求节点 id（可回跳） */
  nodeId?: string;
};

export type ThemeMode = "dark" | "light";

export type WorkspaceSettings = {
  theme: ThemeMode;
  /** 请求超时（毫秒） */
  timeoutMs: number;
};

export type WorkspaceData = {
  version: 2;
  collections: Collection[];
  environments: Environment[];
  activeEnvironmentId: string | null;
  history: HistoryEntry[];
  settings: WorkspaceSettings;
};

/** 导入结果：集合 + 建议写入环境的前缀变量（如 baseUrl） */
export type ImportResult = {
  collections: Collection[];
  environmentVariables: { key: string; value: string }[];
  warnings: string[];
};