using System;
using System.Collections.Generic;
using System.IO;

using Fab2ApprovalSystem.DMO;
using Fab2ApprovalSystem.Models;

namespace Fab2ApprovalSystem.Misc;

public class AuditHelper {

    public static List<string> GetFileNameAndDocument(AppSettings appSettings, AuditDMO auditDMO, string fileGuid, int auditNo) {
        List<string> results = new();
        string fileName = auditDMO.GetAuditReportAttachmentFileName(fileGuid);
        string fileExtension = fileName.Substring(fileName.LastIndexOf("."), fileName.Length - fileName.LastIndexOf("."));

        string ecnFolderPath = appSettings.AttachmentFolder + "Audit\\" + auditNo.ToString();
        string sDocument = Path.Combine(ecnFolderPath, fileGuid + fileExtension);

        string FDir_AppData = appSettings.AttachmentFolder;
        if (!sDocument.StartsWith(FDir_AppData)) {
            sDocument = string.Empty;
        }
        results.Add(fileName);
        results.Add(sDocument);
        return results;
    }

    public static void AuditReportAttachSave(AppSettings appSettings, AuditDMO auditDMO, int auditNo, int userId, string fullFileName, Stream stream) {
        // Some browsers send file names with full path.
        // We are only interested in the file name.

        var fileName = Path.GetFileName(fullFileName);
        var fileExtension = Path.GetExtension(fullFileName);
        DirectoryInfo di;
        var ccPhysicalPath = appSettings.AttachmentFolder + @"Audit\" + auditNo;
        di = new DirectoryInfo(ccPhysicalPath);
        if (!di.Exists)
            di.Create();

        var guid = Guid.NewGuid().ToString();
        var physicalPath = Path.Combine(appSettings.AttachmentFolder + @"Audit\" + auditNo + @"\", guid + fileExtension);

        using (FileStream fileStream = new(physicalPath, FileMode.Create, FileAccess.Write)) {
            stream.CopyTo(fileStream);
        }
        AuditReportAttachment attach = new() {
            AuditNo = auditNo,
            FileGUID = guid,
            FileName = fileName,
            UploadedByID = userId

        };

        auditDMO.InsertAuditReportAttachment(attach);
    }

    public static void SaveAndInsert(AppSettings appSettings, AuditDMO auditDMO, int caFindingsID, int auditNo, int userId, string fullFileName, Stream stream) {
        // Some browsers send file names with full path.
        // We are only interested in the file name.

        var fileName = Path.GetFileName(fullFileName);
        var fileExtension = Path.GetExtension(fullFileName);
        DirectoryInfo di;
        var ccPhysicalPath = appSettings.AttachmentFolder + @"Audit\" + auditNo;
        di = new DirectoryInfo(ccPhysicalPath);
        if (!di.Exists)
            di.Create();

        var guid = Guid.NewGuid().ToString();
        var physicalPath = Path.Combine(appSettings.AttachmentFolder + @"Audit\" + auditNo + @"\", guid + fileExtension);

        using (FileStream fileStream = new(physicalPath, FileMode.Create, FileAccess.Write)) {
            stream.CopyTo(fileStream);
        }
        AuditReportAttachment attach = new() {
            CAFindingsID = caFindingsID,
            AuditNo = auditNo,
            FileGUID = guid,
            FileName = fileName,
            UploadedByID = userId

        };

        auditDMO.InsertAuditReportAttachment(attach);
    }

}