import 'package:core/presentation/action/action_callback_define.dart';
import 'package:core/presentation/extensions/color_extension.dart';
import 'package:core/presentation/resources/image_paths.dart';
import 'package:core/presentation/utils/responsive_utils.dart';
import 'package:core/presentation/utils/theme_utils.dart';
import 'package:core/presentation/views/button/tmail_button_widget.dart';
import 'package:core/utils/app_logger.dart';
import 'package:filesize/filesize.dart';
import 'package:flutter/material.dart';
import 'package:model/email/attachment.dart';
import 'package:model/extensions/list_attachment_extension.dart';
import 'package:tmail_ui_user/features/email/presentation/utils/email_utils.dart';
import 'package:tmail_ui_user/features/email/presentation/widgets/attachment_item_widget.dart';
import 'package:tmail_ui_user/features/email/presentation/widgets/attachments_info.dart';
import 'package:tmail_ui_user/features/email/presentation/widgets/draggable_attachment_item_widget.dart';
import 'package:tmail_ui_user/main/localizations/app_localizations.dart';

class EmailAttachmentsWidget extends StatelessWidget {

  final List<Attachment> attachments;
  final OnDragAttachmentStarted? onDragStarted;
  final OnDragAttachmentEnd? onDragEnd;
  final OnDownloadAttachmentFileAction? downloadAttachmentAction;
  final OnViewAttachmentFileAction? viewAttachmentAction;
  final ResponsiveUtils responsiveUtils;
  final ImagePaths imagePaths;
  final OnTapActionCallback? onTapShowAllAttachmentFile;
  final bool showDownloadAllAttachmentsButton;
  final bool isDisplayAllAttachments;
  final OnTapActionCallback? onTapDownloadAllButton;
  final String? singleEmailControllerTag;

  const EmailAttachmentsWidget({
    super.key,
    required this.attachments,
    required this.responsiveUtils,
    required this.imagePaths,
    this.onDragStarted,
    this.onDragEnd,
    this.downloadAttachmentAction,
    this.viewAttachmentAction,
    this.onTapShowAllAttachmentFile,
    this.showDownloadAllAttachmentsButton = false,
    this.isDisplayAllAttachments = true,
    this.onTapDownloadAllButton,
    this.singleEmailControllerTag,
  });

  @override
  Widget build(BuildContext context) {
    final attachmentHeader = AttachmentsInfo(
      imagePaths: imagePaths,
      numberOfAttachments: attachments.length,
      totalSizeInfo: filesize(attachments.totalSize, 1),
      responsiveUtils: responsiveUtils,
      onTapShowAllAttachmentFile: onTapShowAllAttachmentFile,
      onTapDownloadAllButton: showDownloadAllAttachmentsButton
          ? onTapDownloadAllButton
          : null,
    );

    if (responsiveUtils.isMobile(context)) {
      final attachmentRecord = _getDisplayedAndHiddenAttachment(
        context,
        responsiveUtils.getDeviceWidth(context),
      );
      final displayedAttachments = attachmentRecord.displayedAttachments;
      final hiddenItemsCount = attachmentRecord.hiddenItemsCount;

      return Padding(
        padding: const EdgeInsetsDirectional.only(top: 12, bottom: 24),
        child: Column(
          crossAxisAlignment: CrossAxisAlignment.start,
          children: [
            Padding(
              padding: const EdgeInsetsDirectional.symmetric(horizontal: 12),
              child: attachmentHeader,
            ),
            Padding(
              padding: const EdgeInsetsDirectional.only(
                start: 12,
                end: 12,
                top: 4,
              ),
              child: Column(
                children: displayedAttachments.map((attachment) {
                  return AttachmentItemWidget(
                    attachment: attachment,
                    imagePaths: imagePaths,
                    margin: const EdgeInsets.only(top: 8),
                    downloadAttachmentAction: downloadAttachmentAction,
                    viewAttachmentAction: viewAttachmentAction,
                    singleEmailControllerTag: singleEmailControllerTag,
                  );
                }).toList(),
              ),
            ),
            const SizedBox(height: 12),
            if (hiddenItemsCount > 0 && showDownloadAllAttachmentsButton)
              Padding(
                padding: const EdgeInsetsDirectional.symmetric(horizontal: 8),
                child: Row(
                  children: [
                    TMailButtonWidget.fromText(
                      text: AppLocalizations.of(context).moreAttachments(
                        hiddenItemsCount,
                      ),
                      backgroundColor: Colors.transparent,
                      borderRadius: 5,
                      maxWidth: 120,
                      maxLines: 1,
                      textStyle: ThemeUtils.textStyleM3TitleSmall,
                      padding: const EdgeInsets.symmetric(
                        vertical: 3,
                        horizontal: 5,
                      ),
                      onTapActionCallback: onTapShowAllAttachmentFile,
                    ),
                    Expanded(
                      child: Row(
                        mainAxisAlignment: MainAxisAlignment.end,
                        mainAxisSize: MainAxisSize.min,
                        children: [
                          Flexible(
                            child: TMailButtonWidget(
                              text: AppLocalizations
                                  .of(context)
                                  .archiveAndDownload,
                              icon: imagePaths.icDownloadAll,
                              iconSize: 20,
                              iconColor: AppColor.steelGrayA540,
                              iconAlignment: TextDirection.rtl,
                              backgroundColor: Colors.transparent,
                              borderRadius: 5,
                              mainAxisSize: MainAxisSize.min,
                              maxLines: 1,
                              flexibleText: true,
                              padding: const EdgeInsets.symmetric(
                                vertical: 3,
                                horizontal: 5,
                              ),
                              textStyle: ThemeUtils.textStyleBodyBody1()
                                  .copyWith(color: AppColor.steelGray400),
                              onTapActionCallback: onTapDownloadAllButton,
                            ),
                          ),
                        ],
                      ),
                    ),
                  ],
                ),
              )
            else if (hiddenItemsCount > 0)
              TMailButtonWidget.fromText(
                text: AppLocalizations.of(context).moreAttachments(
                  hiddenItemsCount,
                ),
                backgroundColor: Colors.transparent,
                borderRadius: 5,
                maxLines: 1,
                textStyle: ThemeUtils.textStyleM3TitleSmall,
                padding: const EdgeInsets.symmetric(
                  vertical: 3,
                  horizontal: 5,
                ),
                margin: const EdgeInsetsDirectional.symmetric(horizontal: 8),
                onTapActionCallback: onTapShowAllAttachmentFile,
              )
            else if (showDownloadAllAttachmentsButton)
                Row(
                  mainAxisAlignment: MainAxisAlignment.end,
                  children: [
                    Flexible(
                      child: TMailButtonWidget(
                        text: AppLocalizations.of(context).archiveAndDownload,
                        icon: imagePaths.icDownloadAll,
                        iconSize: 20,
                        iconColor: AppColor.steelGrayA540,
                        iconAlignment: TextDirection.rtl,
                        backgroundColor: Colors.transparent,
                        borderRadius: 5,
                        mainAxisSize: MainAxisSize.min,
                        maxLines: 1,
                        flexibleText: true,
                        padding: const EdgeInsets.symmetric(
                          vertical: 3,
                          horizontal: 5,
                        ),
                        margin: const EdgeInsetsDirectional.symmetric(
                          horizontal: 8,
                        ),
                        textStyle: ThemeUtils.textStyleBodyBody1().copyWith(
                          color: AppColor.steelGray400,
                        ),
                        onTapActionCallback: onTapDownloadAllButton,
                      ),
                    ),
                  ],
                ),
          ],
        ),
      );
    } else {
      return Padding(
        padding: const EdgeInsetsDirectional.only(
          start: 16,
          end: 16,
          top: 16,
          bottom: 28,
        ),
        child: LayoutBuilder(
          builder: (context, constraints) {
            final attachmentRecord = _getDisplayedAndHiddenAttachment(
              context,
              constraints.maxWidth,
            );
            final displayedAttachments = attachmentRecord.displayedAttachments;
            final hiddenItemsCount = attachmentRecord.hiddenItemsCount;

            return Column(
              crossAxisAlignment: CrossAxisAlignment.start,
              children: [
                Padding(
                  padding: const EdgeInsetsDirectional.symmetric(horizontal: 12),
                  child: attachmentHeader,
                ),
                Padding(
                  padding: const EdgeInsetsDirectional.only(
                    start: 12,
                    end: 12,
                    top: 12,
                  ),
                  child: Wrap(
                    spacing: 8,
                    runSpacing: isDisplayAllAttachments ? 8 : 0,
                    crossAxisAlignment: WrapCrossAlignment.center,
                    children: [
                      ...displayedAttachments.map((attachment) {
                        if (responsiveUtils.isDesktop(context)) {
                          return DraggableAttachmentItemWidget(
                            attachment: attachment,
                            imagePaths: imagePaths,
                            width: EmailUtils.desktopItemMaxWidth,
                            onDragStarted: onDragStarted,
                            onDragEnd: onDragEnd,
                            downloadAttachmentAction: downloadAttachmentAction,
                            viewAttachmentAction: viewAttachmentAction,
                            singleEmailControllerTag: singleEmailControllerTag,
                          );
                        } else {
                          return AttachmentItemWidget(
                            attachment: attachment,
                            imagePaths: imagePaths,
                            width: EmailUtils.desktopItemMaxWidth,
                            downloadAttachmentAction: downloadAttachmentAction,
                            viewAttachmentAction: viewAttachmentAction,
                            singleEmailControllerTag: singleEmailControllerTag,
                          );
                        }
                      }).toList(),
                      if (hiddenItemsCount > 0)
                        TMailButtonWidget.fromText(
                          text: '+ $hiddenItemsCount',
                          backgroundColor: Colors.transparent,
                          borderRadius: 5,
                          maxWidth: EmailUtils.desktopMoreButtonMaxWidth,
                          maxLines: 1,
                          textStyle: ThemeUtils.textStyleM3TitleSmall,
                          padding: const EdgeInsets.symmetric(
                            vertical: 3,
                            horizontal: 5,
                          ),
                          onTapActionCallback: onTapShowAllAttachmentFile,
                        ),
                    ],
                  ),
                ),
              ],
            );
          }
        ),
      );
    }
  }

  ({List<Attachment> displayedAttachments, int hiddenItemsCount})
      _getDisplayedAndHiddenAttachment(BuildContext context, double maxWidth) {
    if (isDisplayAllAttachments) {
      return (displayedAttachments: attachments, hiddenItemsCount: 0);
    }

    final displayedAttachments = EmailUtils.getAttachmentDisplayed(
      maxWidth: maxWidth,
      attachments: attachments,
      isMobile: responsiveUtils.isMobile(context),
    );

    int hiddenItemsCount = attachments.length - displayedAttachments.length;
    if (hiddenItemsCount > 999) {
      hiddenItemsCount = 999;
    } else if (hiddenItemsCount < 0) {
      hiddenItemsCount = 0;
    }
    log('EmailAttachmentsWidget::_getDisplayedAndHiddenAttachment: Displayed: ${displayedAttachments.length}, Hidden: $hiddenItemsCount');
    return (
      displayedAttachments: displayedAttachments,
      hiddenItemsCount: hiddenItemsCount,
    );
  }
}