// Types miroir des schémas de l'API back-end (`backend/app/api/schemas.py`).
// Toute évolution du contrat doit être répercutée ici.

export type PositionCategory =
  | 'BAR'
  | 'TICKETING'
  | 'WELCOME'
  | 'PARKING'
  | 'CLEANING'
  | 'CATERING'
  | 'SETUP'
  | 'STAGE'
  | 'OTHER';

// Depuis l'Étape 9 back-end : une affectation est valide dès sa création,
// il n'y a plus de statut (proposée / confirmée…). La retirer = supprimer la ligne.
export type AssignmentSource = 'SOLVER' | 'MANUAL';
export type TshirtSize = 'XS' | 'S' | 'M' | 'L' | 'XL' | 'XXL' | 'XXXL';
export type AvailabilityStatus = 'AVAILABLE' | 'IF_NEEDED' | 'UNAVAILABLE';
export type Role = 'COORDINATOR' | 'LEAD' | 'VOLUNTEER';
export type AuthMethod = 'password' | 'magic_link';

export type ViolationCode =
  | 'SHIFT_OVERLAP'
  | 'OUTSIDE_AVAILABILITY'
  | 'DAILY_HOURS_EXCEEDED'
  | 'INSUFFICIENT_REST'
  | 'MISSING_REQUIRED_SKILL';

export type ViolationSeverity = 'BLOCKING' | 'WARNING';

export interface Violation {
  code: ViolationCode;
  severity: ViolationSeverity;
  params: Record<string, string | number>;
}

// --------------------------------------------------------------------------- //
// Edition                                                                      //
// --------------------------------------------------------------------------- //
export interface EditionRead {
  id: string;
  year: number;
  name: string | null;
  /** Dates ISO (YYYY-MM-DD). */
  start_date: string;
  end_date: string;
  retention_days: number | null;
  created_at: string;
  updated_at: string;
}

export interface EditionUpdate {
  name?: string | null;
  year?: number;
  start_date?: string;
  end_date?: string;
  retention_days?: number | null;
}

// --------------------------------------------------------------------------- //
// Volunteer                                                                    //
// --------------------------------------------------------------------------- //
export interface VolunteerRead {
  id: string;
  edition_id: string;
  first_name: string;
  last_name: string;
  email: string | null;
  phone: string | null;
  tshirt_size: TshirtSize | null;
  diet: string | null;
  comment: string | null;
  skill_codes: string[];
  created_at: string;
  updated_at: string;
}

export interface VolunteerCreate {
  first_name: string;
  last_name: string;
  email?: string | null;
  phone?: string | null;
  tshirt_size?: TshirtSize | null;
  diet?: string | null;
  comment?: string | null;
  skill_codes?: string[];
}

export interface VolunteerUpdate {
  first_name?: string;
  last_name?: string;
  email?: string | null;
  phone?: string | null;
  tshirt_size?: TshirtSize | null;
  diet?: string | null;
  comment?: string | null;
  /** null / absent = inchangé ; [] = vider les compétences. */
  skill_codes?: string[] | null;
}

// --------------------------------------------------------------------------- //
// Position                                                                     //
// --------------------------------------------------------------------------- //
export interface PositionRead {
  id: string;
  edition_id: string;
  name: string;
  location: string | null;
  category: PositionCategory;
  lead_account_id: string | null;
  created_at: string;
  updated_at: string;
}

export interface PositionCreate {
  name: string;
  location?: string | null;
  category: PositionCategory;
  lead_account_id?: string | null;
}

export interface PositionUpdate {
  name?: string;
  location?: string | null;
  category?: PositionCategory;
  lead_account_id?: string | null;
}

// --------------------------------------------------------------------------- //
// Shift                                                                        //
// --------------------------------------------------------------------------- //
export interface ShiftRead {
  id: string;
  edition_id: string;
  position_id: string;
  /** Datetime naïf, heure locale Europe/Paris (ISO sans fuseau). */
  starts_at: string;
  ends_at: string;
  min_staff: number;
  ideal_staff: number;
  required_skill_codes: string[];
  created_at: string;
  updated_at: string;
}

export interface ShiftCreate {
  position_id: string;
  starts_at: string;
  ends_at: string;
  min_staff?: number;
  ideal_staff?: number;
  required_skill_codes?: string[];
}

export interface ShiftUpdate {
  position_id?: string;
  starts_at?: string;
  ends_at?: string;
  min_staff?: number;
  ideal_staff?: number;
  required_skill_codes?: string[] | null;
}

// --------------------------------------------------------------------------- //
// Assignment                                                                   //
// --------------------------------------------------------------------------- //
export interface AssignmentRead {
  id: string;
  edition_id: string;
  volunteer_id: string;
  shift_id: string;
  source: AssignmentSource;
  locked: boolean;
  created_at: string;
  updated_at: string;
}

export interface AssignmentCreate {
  volunteer_id: string;
  shift_id: string;
  source?: AssignmentSource;
  locked?: boolean;
}

export interface AssignmentUpdate {
  source?: AssignmentSource;
  locked?: boolean;
}

export interface AssignmentWriteResult {
  assignment: AssignmentRead;
  warnings: Violation[];
}

export interface AssignmentValidateRequest {
  volunteer_id: string;
  shift_id: string;
}

export interface AssignmentValidateResult {
  blocking: boolean;
  violations: Violation[];
}

// --------------------------------------------------------------------------- //
// Matrice poste × créneau                                                      //
// --------------------------------------------------------------------------- //
export interface MatrixShift {
  shift_id: string;
  starts_at: string;
  ends_at: string;
  min_staff: number;
  ideal_staff: number;
  /** Nombre d'affectations sur ce créneau. */
  assigned: number;
}

export interface MatrixPosition {
  id: string;
  name: string;
  category: PositionCategory;
  location: string | null;
  shifts: MatrixShift[];
}

export interface MatrixResponse {
  edition_id: string;
  positions: MatrixPosition[];
}

// --------------------------------------------------------------------------- //
// Authentification                                                             //
// --------------------------------------------------------------------------- //
export interface AccountRead {
  id: string;
  edition_id: string;
  email: string;
  role: Role;
  volunteer_id: string | null;
  /** "password" (coordination) ou "magic_link" (référents, bénévoles). */
  auth_method: AuthMethod;
  created_at: string;
  updated_at: string;
}

export interface TokenResponse {
  access_token: string;
  token_type: string;
  account: AccountRead;
}

export interface LoginRequest {
  email: string;
  password: string;
}

export interface MagicLinkRequest {
  email: string;
}

export interface VerifyRequest {
  token: string;
}

// --------------------------------------------------------------------------- //
// Notifications par email                                                      //
// --------------------------------------------------------------------------- //
/**
 * `subject` / `body` sont des modèles. Variables : {prenom} {nom}
 * {nb_creneaux} {nb_heures} {creneaux} {lien_connexion} (ce dernier déclenche
 * l'émission d'un lien magique personnel).
 */
export interface PlanningNotificationRequest {
  subject?: string | null;
  body?: string | null;
  /** null / absent = tous les bénévoles de l'édition qui ont un email. */
  volunteer_ids?: string[] | null;
}

export interface PlanningNotificationResult {
  queued: number;
  skipped_no_email: number;
  recipients: string[];
}