export type SessionOutcome = 'completed' | 'interrupted' | 'error' | 'unknown'

export interface SessionMeta {
  session_id: string
  project_path: string
  project_slug: string
  jsonl_path: string
  started_at: string
  ended_at: string | null
  duration_sec: number | null
  event_count: number
  user_messages: number
  assistant_msgs: number
  tool_calls: number
  first_prompt: string | null
  tools_used: string[]
  skills_invoked: string[]
  outcome: SessionOutcome
  permission_mode: string | null
  file_size: number
  indexed_at: string
}

export type SessionEventType =
  | 'user'
  | 'assistant'
  | 'system'
  | 'attachment'
  | 'permission-mode'
  | 'file-history-snapshot'
  | 'unknown'

export interface SessionEvent {
  index: number
  type: SessionEventType
  timestamp: string | null
  raw: Record<string, unknown>
  text: string | null
  tool_name: string | null
  tool_input: Record<string, unknown> | null
  tool_result: unknown
  skill_invoked: string | null
  hook_name: string | null
}

export interface ParseResult {
  meta: SessionMeta
  events: SessionEvent[]
}