/*
  * Copyright (c) 2025 LG Electronics Inc.
   * SPDX-License-Identifier: LicenseRef-LGE-Proprietary
   */
using Aurora.Api;
using MilCommon;
using VisionCommon;
using Hermes;
using Matrox.MatroxImagingLibrary;
using System;
using System.Collections.Generic;
using System.Text;
using Aurora.Api.Devices;
using VisionAI;

namespace MilPattern {
    /// <summary>
    /// Tesseract AI OCR ¸ðµâ
    /// </summary>
    internal static class TesseractRead {
        private static Logger _logger = new Logger(typeof(TesseractRead).Name);

        private static TesseractAgent _TesseractAgent;

        public static void SetRunParam(OcrParamExt paramExt) {
            if (_TesseractAgent == null) {
                _TesseractAgent = new TesseractAgent();
            }
            _TesseractAgent.SetRunParam(paramExt.CustomTextLength, paramExt.TesseractParamExt.WhiteList, paramExt.TesseractParamExt.BlackList);
        }

        public static PatternResult Find(MIL_ID image, OcrParamExt paramExt) {
            var bitmap = MilEnvironment.ConvertToBitmap(image);
            //bitmap.Save(Path.Combine(@"D:\\01_Projects\\250417\\AuroraVision\\AuroraVision\\VisionAI", "bitmapTest.png"));    // µð¹ö±ë¿ë

            TsOcrOutputParam outputParam = _TesseractAgent.ReadOCR(bitmap, paramExt.FindROI.Angle.Degree, paramExt.NoLengthLimit);

            var finderResult = ExtractResults(outputParam, MilEnvironment.GetImageCenter(image), paramExt);
            finderResult.TactTimeInMilliSec = outputParam.TactTime_Ms;

            return finderResult;
        }

        private static PatternResult ExtractResults(TsOcrOutputParam outputParam, ImagePoint imageCenter, OcrParamExt paramExt) {
            var results = new List<OcrResult>();

            if (outputParam.Status == eInspStatus.OK) {
                results.Add(new OcrResult(
                    ocrType: eOcrType.Tesseract,
                    position: new ImagePoint(paramExt.FindROI.Width / 2, paramExt.FindROI.Height / 2),
                    offset: new ImagePoint(),
                    angle: paramExt.FindROI.Angle.Clone() as Angle,
                    score: outputParam.Score,
                    text: outputParam.Text,
                    findRoi: paramExt.FindROI.Clone() as ROI,
                    eFoundStatus.FoundOK));
            }

            return new PatternResult() {
                MoreInfo = eOcrType.Tesseract,
                Status = (results.Count > 0) ? eFoundStatus.FoundOK : eFoundStatus.NotFound,
                Results = results
            };
        }
    }
}