export type RunMode = 'const_height' | 'cloud_compare';

export type CloudRole = 'unique' | 'top' | 'bottom';

/** Mirroir des strategies de remplissage de cellules vides de CloudCompare (-EMPTY_FILL). */
export type EmptyCellStrategy = 'leave_empty' | 'min_height' | 'max_height' | 'custom_height' | 'interpolate' | 'kriging';

/** Mirroir de -PROJ (type de projection par cellule). INV_VAR omis (necessite un champ scalaire dedie, non applicable ici). */
export type ProjectionType = 'avg' | 'min' | 'max' | 'med';

/** Mirroir de -VERT_DIR : 0=X, 1=Y, 2=Z. */
export type VertDir = 0 | 1 | 2;

export interface LevelCloudInfo {
  role: CloudRole;
  spatialStep: number | null; // null pour le niveau 0 (nuage complet, non decime)
  pointCount: number;
  pointRatio: number; // vs le niveau 0 du meme role
  binFile: string | null; // chemin relatif au dossier du run (nuage brut, non rempli)
}

export interface LevelResult {
  level: number;
  gridStep: number | null; // grille de calcul du volume a CE niveau (adaptee dynamiquement, voir CLAUDE.md)
  maxEdgeLength: number | null; // limite de remplissage des trous (Delaunay) a CE niveau, si strategie = interpolate
  clouds: LevelCloudInfo[]; // 1 element en mode const_height, 2 (top puis bottom) en mode cloud_compare
  volume: number | null;
  surface: number | null;
  addedVolume: number | null;
  removedVolume: number | null;
  matchingCellsPct: number | null;
  groundNonMatchingPct: number | null;
  ceilNonMatchingPct: number | null;
  diffMapImage: string | null; // chemin relatif au dossier du run : carte de comparaison unique (bleu->rouge)
  warn: boolean;
  status: 'ok' | 'skipped' | 'error';
  message?: string;
  computeTimeMs: number;
}

export interface RunParamsInput {
  mode: RunMode;
  zrefOverride?: number; // mode const_height uniquement
  initialStepOverride?: number;
  gridStepMultiplierOverride?: number;
  maxEdgeLengthOverride?: number;
  emptyCellStrategy?: EmptyCellStrategy; // defaut 'interpolate'
  customHeightValue?: number; // requis si emptyCellStrategy = 'custom_height'
  krigingKnn?: number; // requis si emptyCellStrategy = 'kriging'
  projectionType?: ProjectionType; // defaut 'avg'
  vertDir?: VertDir; // defaut 2 (Z)
}

export interface RunReport {
  runId: string;
  mode: RunMode;
  originalFilename: string; // fichier unique (const_height) ou nom du nuage du haut (cloud_compare)
  originalFilenameBottom: string | null; // mode cloud_compare uniquement
  createdAt: string;
  params: {
    zref: number | null; // mode const_height uniquement
    zrefSource: 'override' | 'auto' | null;
    initialStep: number;
    initialStepSource: 'override' | 'auto';
    gridStepMultiplier: number;
    gridStepMultiplierSource: 'override' | 'auto';
    maxEdgeLengthMultiplier: number;
    maxEdgeLengthSource: 'override' | 'auto';
    emptyCellStrategy: EmptyCellStrategy;
    customHeightValue: number | null;
    krigingKnn: number | null;
    projectionType: ProjectionType;
    vertDir: VertDir;
    factor: number;
    steps: number;
    densityMatch: {
      topSpacing: number;
      bottomSpacing: number;
      matchedSpacing: number;
      preDecimatedRole: 'top' | 'bottom' | 'none';
    } | null; // mode cloud_compare uniquement
    sampleStats: {
      sampleCount: number;
      meanNn: number;
      medianNn: number;
      bboxApprox: { xmin: number; xmax: number; ymin: number; ymax: number; zmin: number; zmax: number };
    };
  };
  levels: LevelResult[];
  mergedBinFile: string | null;
}