// ============================================================
// SHARED TYPES — consumed by both server (src/routes/*.ts) and
// client (client/src/*). A response-shape change here breaks the
// build on both sides until they agree.
//
// This is the single most important file in the TypeScript
// migration. Three of the bugs we hit before this point were
// response-shape mismatches (refine returned `content` vs
// `refined`, sick-visit endpoint path mismatch, hospital-course
// key mismatch). Typing the wire protocol makes them compile-time
// errors.
//
// Keep this file strictly about wire protocol — no DB row shapes,
// no server-internal helpers. Anything that crosses the network.
// ============================================================

// ── Envelope ─────────────────────────────────────────────────
// Every route returns either `{success: true, ...extraFields}` or
// `{success: false, error: string}`. The generic `T` is the shape
// of the extra fields on success. Client code does:
//   const r: ApiResponse<HpiOk> = await fetch(...).then(r => r.json());
//   if (r.success) console.log(r.hpi);
//   else           showToast(r.error);
export interface ApiErr {
  success: false;
  error: string;
}
export type ApiResponse<T> = ({ success: true } & T) | ApiErr;

// Model tag accompanies every AI response — LiteLLM pass-through.
export interface WithModel {
  model: string;
}

// ── AI generation responses ──────────────────────────────────
// Keys match exactly what each route returns today. Do not rename
// without updating the server-side res.json() call in the same commit.

// /api/generate-hpi-encounter
// /api/generate-hpi-dictation
export interface HpiOk extends WithModel {
  hpi: string;
}

// /api/generate-soap
export interface SoapOk extends WithModel {
  soap: string;
}

// /api/sick-visit/note   (NOT /api/generate-sick-visit — that path does not exist)
// /api/well-visit/note
export interface VisitNoteOk extends WithModel {
  note: string;
}

// /api/generate-hospital-course
export interface HospitalCourseOk extends WithModel {
  hospitalCourse: string;
  format?: string;
}

// /api/generate-chart-review
export interface ChartReviewOk extends WithModel {
  review: string;
}

// /api/generate-pe-narrative
export interface PeNarrativeOk extends WithModel {
  narrative: string;
  summary: {
    normal: number;
    abnormal: number;
    notAssessed: number;
  };
}

// /api/generate-milestone-narrative
export interface MilestoneNarrativeOk extends WithModel {
  narrative: string;
  summary: {
    achieved: number;
    notAchieved: number;
    notAssessed: number;
  };
}

// /api/generate-milestone-summary
export interface MilestoneSummaryOk extends WithModel {
  summary: string;
}

// /api/well-visit/shadess
export interface ShadessOk extends WithModel {
  assessment: string;
}

// /api/refine
export interface RefineOk extends WithModel {
  refined: string;
}

// /api/shorten  (via refine.js router)
export interface ShortenOk extends WithModel {
  shortened: string;
}

// /api/clarify and /hospital-course/clarify
export interface ClarifyOk extends WithModel {
  questions: string;
}

// /api/suggest-billing-codes
export interface BillingCodesOk extends WithModel {
  icd10: Array<{ code: string; description: string; reason?: string }>;
  cpt: Array<{ code: string; description: string; reason?: string }>;
}

// /api/transcribe
export interface TranscribeOk {
  text: string;
  provider: string;
  duration: number;
}

// /api/tts
export interface TtsOk {
  audioBase64: string;
}

// /api/models
export interface ModelsOk {
  models: Array<{ id: string; label?: string }>;
}

// ── Auth ─────────────────────────────────────────────────────
export interface AuthUser {
  id: number;
  email: string;
  name: string;
  role?: string;
  isVerified?: boolean;
  has2FA?: boolean;
}

// /api/auth/login (two-phase: may also return requires2FA / needsVerification)
export interface LoginOk {
  token: string;
  user: AuthUser;
  sessionId?: string;
}

export interface LoginRequires2FA {
  success: true;
  requires2FA: true;
}

export interface LoginNeedsVerification {
  success: true;
  needsVerification: true;
}

// /api/auth/me
export interface MeOk {
  user: AuthUser;
}

// ── Sessions ─────────────────────────────────────────────────
export interface SessionRow {
  id: string;
  userAgent?: string;
  ipAddress?: string;
  createdAt: string;
  lastUsedAt?: string;
}
export interface SessionsOk {
  sessions: SessionRow[];
  currentSessionId: string | null;
}

// ── Extensions (pagers/directory) ────────────────────────────
export interface Extension {
  id: number;
  location: string;
  name: string;
  number: string;
  type: 'extension' | 'pager';
  notes?: string;
  deletedAt?: string | null;
}
export interface ExtensionsListOk {
  items: Extension[];
}

// ── Memories (saved templates / style hints) ─────────────────
export interface Memory {
  id: number;
  category: string;
  name: string;
  content: string;
}
export interface MemoriesListOk {
  items: Memory[];
}

// ── Learning hub ─────────────────────────────────────────────
export interface LearningContentItem {
  id: number | string;
  slug?: string;
  title: string;
  category?: string;
  excerpt?: string;
  body?: string;
}
export interface LearningFeedOk {
  content: LearningContentItem[];
  total?: number;
}

// ── Encounters (saved drafts) ────────────────────────────────
export interface EncounterSummary {
  id: number;
  label: string;
  type: 'encounter' | 'dictation' | 'hospital' | 'chart' | 'wellvisit' | 'sickvisit' | 'soap';
  createdAt: string;
  updatedAt: string;
}
export interface EncountersListOk {
  items: EncounterSummary[];
}

// ── Health ───────────────────────────────────────────────────
export interface HealthOk {
  ok: boolean;
}