import { ActiviteResponsable, StatutCount } from '../repositories/responsable.repository';
import { DashboardResponsableData } from '../services/responsable.service';

export interface RepartitionStatutResponse {
  total: number;
  parStatut: Record<string, number>;
}

export interface ActiviteResponsableResponse {
  id: number;
  action: string;
  description: string;
  dateAction: Date;
  utilisateur: {
    id: number;
    nom: string;
    prenom: string;
  };
  materiel: {
    id: number;
    nom: string;
    reference: string;
  } | null;
  empruntId: number | null;
}

export interface DashboardResponsableResponse {
  kpis: {
    materiels: RepartitionStatutResponse;
    emprunts: RepartitionStatutResponse;
    anomalies: RepartitionStatutResponse;
    notificationsNonLues: number;
  };
  activiteRecente: ActiviteResponsableResponse[];
}

function toRepartition(rows: StatutCount[]): RepartitionStatutResponse {
  const parStatut: Record<string, number> = {};
  let total = 0;

  for (const row of rows) {
    parStatut[row.statut] = row.count;
    total += row.count;
  }

  return { total, parStatut };
}

function toActiviteResponse(activite: ActiviteResponsable): ActiviteResponsableResponse {
  return {
    id: activite.id,
    action: activite.action,
    description: activite.description,
    dateAction: activite.dateAction,
    utilisateur: {
      id: activite.utilisateur.id,
      nom: activite.utilisateur.nom,
      prenom: activite.utilisateur.prenom,
    },
    materiel: activite.materiel
      ? {
          id: activite.materiel.id,
          nom: activite.materiel.nom,
          reference: activite.materiel.reference,
        }
      : null,
    empruntId: activite.empruntId,
  };
}

export function toDashboardResponsableResponse(
  data: DashboardResponsableData,
): DashboardResponsableResponse {
  return {
    kpis: {
      materiels: toRepartition(data.materiels),
      emprunts: toRepartition(data.emprunts),
      anomalies: toRepartition(data.anomalies),
      notificationsNonLues: data.notificationsNonLues,
    },
    activiteRecente: data.activiteRecente.map(toActiviteResponse),
  };
}