// Mirrors server/src/types.rs

export interface ImageData {
  media_type: string;
  /** Base64 bytes; absent when the server stores the image separately (blob). */
  data?: string;
  /** SHA-256 of a stored image: GET /api/blobs/<blob>. */
  blob?: string;
  /** Size in bytes of a stored image. */
  size?: number;
}

export type Part =
  | { type: "text"; text: string }
  | { type: "image"; image: ImageData }
  | { type: "reasoning"; text: string; signature?: string }
  | { type: "tool_call"; id: string; name: string; input: any }
  | {
      type: "tool_result";
      call_id: string;
      name: string;
      content: string;
      images?: ImageData[];
      is_error: boolean;
      meta?: any;
    }
  | { type: "summary"; text: string; auto?: boolean; tokens?: number };

export interface Usage {
  input_tokens: number;
  output_tokens: number;
  cache_read_tokens: number;
  cache_write_tokens: number;
}

export interface Message {
  id: string;
  role: "user" | "assistant";
  parts: Part[];
  model?: string;
  usage?: Usage;
  created_at: number;
}

export interface Todo {
  content: string;
  status: "pending" | "in_progress" | "completed";
}

export interface Session {
  id: string;
  title: string;
  cwd: string;
  model: string;
  agent: string;
  permission_mode: "default" | "auto" | "accept_edits" | "bypass";
  parent_id?: string;
  created_at: number;
  updated_at: number;
  todos: Todo[] | null;
  last_usage?: Usage | null;
  busy?: boolean;
  owner_id?: string | null;
  /** Craft: clean room (true) or deep (false); undefined = server default. */
  clean_room?: boolean | null;
  /** Craft workflow phase reported by the agent. */
  phase?: string;
  /** Isolated git worktree of the session. */
  worktree?: { repo: string; path: string; branch: string; base: string; sub?: string } | null;
  /** Listed because it was shared with the current user. */
  shared?: boolean;
  pinned?: boolean;
  archived?: boolean;
  folder?: string | null;
  /** Instructions for this chat (added to the system prompt). */
  instructions?: string;
  /** Approvals and questions of this chat are not sent to Telegram. */
  telegram_quiet?: boolean;
}

export interface QuestionOption {
  label: string;
  description?: string;
}

export interface Question {
  question: string;
  header?: string;
  options: QuestionOption[];
  multi_select?: boolean;
}

export interface PermissionRequest {
  type: "permission_request";
  id: string;
  session_id: string;
  root_session_id?: string;
  tool: string;
  title: string;
  input: any;
  diff?: string;
}

export interface QuestionRequest {
  type: "question_request";
  id: string;
  session_id: string;
  root_session_id?: string;
  source: string;
  questions: Question[];
}

export type ServerEvent =
  | { type: "session_updated"; session: Session }
  | { type: "session_deleted"; session_id: string }
  | { type: "session_status"; session_id: string; busy: boolean }
  | { type: "message_added"; session_id: string; message: Message }
  | { type: "text_delta"; session_id: string; message_id: string; text: string }
  | { type: "reasoning_delta"; session_id: string; message_id: string; text: string }
  | { type: "tool_started"; session_id: string; message_id: string; call_id: string; name: string; input: any }
  | { type: "tool_progress"; session_id: string; call_id: string; output: string }
  | PermissionRequest
  | { type: "permission_resolved"; id: string; session_id: string }
  | QuestionRequest
  | { type: "question_resolved"; id: string; session_id: string }
  | { type: "error"; session_id: string; message: string }
  | { type: "waiting"; session_id: string; reason: string | null }
  | { type: "queue_updated"; session_id: string; items: QueueItem[] }
  | { type: "step_started"; session_id: string; message_id: string; started_at: number; prompt_tokens: number; estimated: boolean }
  | { type: "compaction"; session_id: string; state: "started" | "done" | "failed"; auto: boolean; tokens: number | null; limit: number | null }
  | { type: "mcp_status"; servers: Record<string, McpServerStatus> }
  | { type: "resync" };

export interface McpServerStatus {
  status: { state: "disabled" | "connecting" | "connected" | "failed"; tools?: number; error?: string };
  tools: { name: string; description: string }[];
}

export interface ModelInfo {
  id: string;
  name: string;
  context?: number;
  max_output?: number | null;
  reasoning: boolean;
  vision: boolean;
  effort?: string | null;
  input_price?: number | null;
  output_price?: number | null;
  cache_read_price?: number | null;
  cache_write_price?: number | null;
}

export interface ProviderModels {
  provider: string;
  models: ModelInfo[];
}

export interface AgentInfo {
  name: string;
  description: string;
  mode: "primary" | "subagent";
  read_only: boolean;
  /** "coding" or "chat" (plain conversation prompt). */
  style?: "coding" | "chat";
  model?: string | null;
  tools?: string[] | null;
  source: "builtin" | "config" | "file" | "personal";
  max_parallel?: number | null;
  refine?: { rounds: number; model?: string | null; criteria?: string | null } | null;
  /** Source file of Markdown agents. */
  path?: string | null;
}

export interface Aggregate {
  requests: number;
  input_tokens: number;
  output_tokens: number;
  cache_read_tokens: number;
  cache_write_tokens: number;
  cost: number;
  errors: number;
  avg_ttft_ms: number;
  output_tps: number;
  prefill_tps: number;
  cache_hit_rate: number;
  duration_ms: number;
}

export interface User {
  id: string;
  username: string;
  display_name: string;
  role: "admin" | "user";
  has_password: boolean;
  oidc: boolean;
  disabled: boolean;
  created_at: number;
  monthly_quota?: number | null;
}

export interface Info {
  name: string;
  version: string;
  commit?: string;
  /** Newer release (admins only). */
  update?: { version: string; url: string; notes: string } | null;
  setup_required: boolean;
  /** Prebuilt terminal client binaries can be downloaded from this server. */
  cli_builds?: boolean;
  oidc: { label: string } | null;
  user: User | null;
}

export interface QueueItem {
  id: string;
  parts: Part[];
  source: "user" | "background";
  created_at: number;
}