import type { CanonicalFieldRole } from './canonical-model';

export type RecognitionConfidenceLevel = 'high' | 'medium' | 'low' | 'unknown';
export type RecognitionDecisionSource = 'automatic' | 'user-confirmed' | 'fallback';

export interface RecognitionEvidence {
  signal: string;
  message: string;
  contribution: number;
}

export interface RecognitionConfidence {
  level: RecognitionConfidenceLevel;
  score: number;
  reasons: string[];
}

export interface ToolCandidateRecognition {
  toolId: string;
  toolName: string;
  confidence: RecognitionConfidence;
  evidence: RecognitionEvidence[];
}

export interface SourceRecognition {
  selected: ToolCandidateRecognition;
  candidates: ToolCandidateRecognition[];
  decisionSource: RecognitionDecisionSource;
  requiresConfirmation: boolean;
}

export interface TableRecognition {
  tableId: string;
  tableIndex: number;
  tableName: string;
  selected: boolean;
  confidence: RecognitionConfidence;
  evidence: RecognitionEvidence[];
  decisionSource: RecognitionDecisionSource;
  requiresConfirmation: boolean;
}

export interface FieldRoleAlternative {
  role: CanonicalFieldRole;
  confidence: RecognitionConfidence;
}

export interface FieldRoleRecognition {
  tableId: string;
  tableIndex: number;
  columnIndex: number;
  sourceHeader: string;
  proposedRole: CanonicalFieldRole | null;
  appliedRole: CanonicalFieldRole;
  alternatives: FieldRoleAlternative[];
  confidence: RecognitionConfidence;
  evidence: RecognitionEvidence[];
  decisionSource: RecognitionDecisionSource;
  requiresConfirmation: boolean;
}

export interface ImportRecognitionResult {
  version: 1;
  source: SourceRecognition;
  tables: TableRecognition[];
  fields: FieldRoleRecognition[];
}

export interface RecognitionOverrides {
  sourceTool?: { toolId: string; toolName: string };
  tableSelections?: Record<string, boolean>;
  fieldRoles?: Array<{
    tableId: string;
    columnIndex: number;
    role: CanonicalFieldRole;
  }>;
  candidateFieldRoles?: Array<{
    decisionId: string;
    role: CanonicalFieldRole;
  }>;
}