export interface AttachedFileMeta {
  fileName: string;
  mimeType: string;
  fileSize: number;
  preview: string | null;
  filePath?: string;
  source?: 'user-upload' | 'tool-result' | 'tool-artifact' | 'message-ref';
}

export type ToolLifecycleStatus = 'running' | 'completed' | 'error';

export type ToolArtifactKind =
  | 'file'
  | 'image'
  | 'table'
  | 'url'
  | 'json'
  | 'text'
  | 'unknown';

export interface ToolArtifact {
  kind?: ToolArtifactKind;
  name?: string;
  label?: string;
  description?: string;
  mimeType?: string;
  uri?: string;
  filePath?: string;
  preview?: string | null;
  metadata?: Record<string, unknown>;
}

export interface ToolErrorInfo {
  code?: string;
  message: string;
  details?: unknown;
}

export interface ToolRenderHints {
  card?:
    | 'generic'
    | 'document-analysis'
    | 'search-results'
    | 'browser-step'
    | 'command-output'
    | 'skill-install';
  preferredView?: 'summary' | 'table' | 'log' | 'artifact-list';
  skillType?: string;
  metadata?: Record<string, unknown>;
}

export interface ToolResultPayload {
  ok?: boolean;
  summary?: string;
  structuredData?: unknown;
  files?: AttachedFileMeta[];
  artifacts?: ToolArtifact[];
  logs?: Array<string | Record<string, unknown>>;
  error?: string | ToolErrorInfo;
  retryable?: boolean;
  skillType?: string;
  renderHints?: ToolRenderHints;
  raw?: unknown;
}

export interface ToolCallPayload {
  id?: string;
  name?: string;
  input?: unknown;
  arguments?: unknown;
  summary?: string;
}

export interface ContentBlockSource {
  type: string;
  media_type?: string;
  data?: string;
  url?: string;
}

export interface ContentBlock {
  type: 'text' | 'image' | 'thinking' | 'tool_use' | 'tool_result' | 'toolCall' | 'toolResult';
  text?: string;
  thinking?: string;
  source?: ContentBlockSource;
  data?: string;
  mimeType?: string;
  id?: string;
  name?: string;
  toolCallId?: string;
  input?: unknown;
  arguments?: unknown;
  content?: string | ContentBlock[];
  result?: ToolResultPayload | unknown;
  summary?: string;
  ok?: boolean;
  error?: string | ToolErrorInfo;
  artifacts?: ToolArtifact[];
  renderHints?: ToolRenderHints;
  metadata?: Record<string, unknown>;
}

export type RawMessageRole = 'user' | 'assistant' | 'system' | 'toolresult' | 'tool_result';

export interface RawMessage {
  role: RawMessageRole;
  content: string | ContentBlock[];
  timestamp?: number;
  id?: string;
  toolCallId?: string;
  toolName?: string;
  details?: unknown;
  isError?: boolean;
  question?: string[];
  toolCall?: ToolCallPayload | Record<string, unknown> | null;
  toolResult?: ToolResultPayload | null;
  _attachedFiles?: AttachedFileMeta[];
  _toolStatuses?: ToolStatus[];
}

export interface ToolStatus {
  id?: string;
  toolCallId?: string;
  name: string;
  status: ToolLifecycleStatus;
  durationMs?: number;
  summary?: string;
  updatedAt: number;
  input?: unknown;
  result?: ToolResultPayload | unknown;
  error?: string | ToolErrorInfo;
  artifacts?: ToolArtifact[];
  renderHints?: ToolRenderHints;
}

export interface ChatSession {
  key: string;
  label?: string;
  displayName?: string;
  thinkingLevel?: string;
  model?: string;
  updatedAt?: number;
}