/**
 * @license
 * SPDX-License-Identifier: Apache-2.0
*/

// --- CORE & ACCESS ---

export type View = 'dashboard' | 'appointments' | 'find-doctor' | 'health-assistant' | 'accounting' | 'doctor-registration' | 'clinic-management' | 'medical-history';

export type Role = 'owner' | 'doctor' | 'staff' | 'patient';

// New types for clinic settings
export interface OperatingHours {
  monday: { active: boolean; start: string; end: string };
  tuesday: { active: boolean; start: string; end: string };
  wednesday: { active: boolean; start: string; end: string };
  thursday: { active: boolean; start: string; end: string };
  friday: { active: boolean; start: string; end: string };
  saturday: { active: boolean; start: string; end: string };
  sunday: { active: boolean; start: string; end: string };
}

export interface ClinicSettingsData {
  operating_hours: OperatingHours;
  online_booking: {
    enabled: boolean;
    auto_confirm: boolean;
    min_booking_notice_hours: number;
    cancellation_policy_hours: number;
  };
  financial: {
    currency: string;
    tax_rate_percent: number;
    invoice_footer: string;
  };
}


export interface Clinic {
  id: string; // UUID
  name: string;
  owner_id?: string; // UUID of the owner user
  created_at: string; // ISO 8601
  // Add new detailed profile fields
  address?: string;
  contact_phone?: string;
  contact_email?: string;
  website?: string;
  settings?: ClinicSettingsData;
}

export interface User {
  id: string; // UUID
  clinic_id: string; // Foreign Key to Clinic
  email: string;
  password_hash: string;
  role: Role;
  created_at: string; // ISO 8601
  schedule_id?: string; // FK to Schedule
}

// --- CLINIC OPERATIONS ---

export interface Patient {
  id: string; // UUID
  clinic_id: string; // FK to Clinic
  name: string;
  dob?: string; // YYYY-MM-DD
  gender?: string;
  contact_info?: Record<string, string>; // JSONB
  created_at: string; // ISO 8601
}

export interface Doctor {
  id: string; // UUID
  clinic_id: string; // FK to Clinic
  name: string;
  specialty?: string;
  created_at: string; // ISO 8601
  // Denormalized for UI convenience
  photo?: string;
}

export interface Service {
  id: string; // UUID
  clinic_id: string; // FK to Clinic
  name: string;
  price: number;
  duration_minutes: number;
  currency?: string;
}

export type AppointmentStatus = 'scheduled' | 'completed' | 'canceled';

export interface Appointment {
  id: string; // UUID
  clinic_id: string; // FK to Clinic
  patient_id: string; // FK to Patient
  doctor_id: string; // FK to Doctor
  service_id?: string; // FK to Service
  start_time: string; // ISO 8601
  status: AppointmentStatus;
}


// --- MEDICAL (EMR) ---

export interface Encounter {
  id: string; // UUID
  clinic_id: string; // FK to Clinic
  patient_id: string; // FK to Patient
  doctor_id: string; // FK to Doctor
  appointment_id?: string; // FK to Appointment
  notes?: string;
  vitals?: Record<string, any>; // JSONB
  created_at: string; // ISO 8601
}

export interface Problem {
    encounter_id: string; // UUID
    description: string;
}

export interface Allergy {
    patient_id: string;
    substance: string;
    reaction?: string;
}

export interface Medication {
    encounter_id: string; // UUID
    drug_name: string;
    dosage?: string;
    instructions?: string;
}


// --- FINANCIALS ---

export type InvoiceStatus = 'draft' | 'issued' | 'paid' | 'canceled';

export interface InvoiceLine {
    id: string; // UUID
    invoice_id: string;
    service_id?: string;
    quantity: number;
    price: number;
}

export interface Invoice {
  id: string; // UUID
  clinic_id: string; // FK to Clinic
  patient_id: string; // FK to Patient
  total: number;
  status: InvoiceStatus;
  issued_at: string; // ISO 8601
  invoice_lines: InvoiceLine[]; // Denormalized for UI
}

export interface Payment {
  id: string; // UUID
  invoice_id: string; // FK to Invoice
  amount: number;
  method?: string;
  paid_at: string; // ISO 8601
}

// --- UI SPECIFIC ---

// For doctor registration flow
export interface DoctorRegistrationData {
  user: Partial<User>;
  doctor: Partial<Doctor>;
}

// New type for schedule overrides
export interface DayOverride {
  date: string; // YYYY-MM-DD
  active: boolean;
  start?: string; // HH:mm, required if active
  end?: string; // HH:mm, required if active
}

// FIX: Define Schedule type for doctor schedule feature.
export interface Schedule {
  id: string; // UUID
  clinic_id: string; // FK to Clinic
  appointment_length_minutes: number;
  buffer_time_minutes: number;
  overrides: DayOverride[]; // Replaces holidays for more flexibility
  weekdays: {
    monday: { active: boolean; start: string; end: string };
    tuesday: { active: boolean; start: string; end: string };
    wednesday: { active: boolean; start: string; end: string };
    thursday: { active: boolean; start: string; end: string };
    friday: { active: boolean; start: string; end: string };
    saturday: { active: boolean; start: string; end: string };
    sunday: { active: boolean; start: string; end: string };
  };
}