import { useCallback, type MouseEvent } from "react";
import type { ScanDetailsModalProps } from "../types";
import type { ParsedArtifactCandidate } from "../../../../../lib/artifactOcrParser";

export interface ScanDetailsModalModel {
  closeDetails: () => void;
  stopPropagation: (event: MouseEvent<HTMLDivElement>) => void;
  parsedNotes: string[];
  showParsedNotes: boolean;
  cropRows: Array<{ id: string; dataUrl: string; label: string; x: number; y: number; width: number; height: number }>;
  ocrRows: Array<{ id: string; label: string; confidence: number; text: string }>;
  debugText: string;
  showCrops: boolean;
  showOcr: boolean;
}

interface UseScanDetailsModalModelInput {
  setDetailsOpen: ScanDetailsModalProps["setDetailsOpen"];
  parsedArtifact: ScanDetailsModalProps["controller"]["parsedArtifact"];
  latestCapture: ScanDetailsModalProps["latestCapture"];
}

export function useScanDetailsModalModel({
  setDetailsOpen,
  parsedArtifact,
  latestCapture,
}: UseScanDetailsModalModelInput): ScanDetailsModalModel {
  const closeDetails = useCallback(() => setDetailsOpen(false), [setDetailsOpen]);
  const stopPropagation = useCallback((event: MouseEvent<HTMLDivElement>) => {
    event.stopPropagation();
  }, []);
  const parsedNotes = (parsedArtifact?.notes ?? []) as ParsedArtifactCandidate["notes"];

  const crops = latestCapture?.crops ?? [];
  const ocr = latestCapture?.ocr ?? [];
  const cropRows = crops
    .filter((crop) => Boolean(crop.dataUrl))
    .map((crop) => ({
      id: crop.id,
      dataUrl: crop.dataUrl ?? "",
      label: crop.label,
      x: crop.rect.x,
      y: crop.rect.y,
      width: crop.rect.width,
      height: crop.rect.height,
    }));

  return {
    closeDetails,
    stopPropagation,
    parsedNotes,
    showParsedNotes: parsedNotes.length > 0,
    cropRows,
    ocrRows: ocr.map((entry) => ({
      id: entry.id,
      label: entry.label,
      confidence: entry.confidence,
      text: entry.text || "No text detected",
    })),
    debugText: `Debug: crops ${crops.length} / ocr ${ocr.length}`,
    showCrops: cropRows.length > 0,
    showOcr: ocr.length > 0,
  };
}