import "dart:typed_data";
import "package:clawd_code/ui/widgets/common/button.dart";
import "package:shadcn_flutter/shadcn_flutter.dart";
import "package:flutter/services.dart";
import "../../../models/attachment.dart";
import "../attachment_preview.dart";
import "../../../../src/session/session_types.dart";

Color _msgColour(BuildContext context) {
  final theme = Theme.of(context);
  final dark = theme.brightness == Brightness.dark;
  final h = HSLColor.fromColor(theme.colorScheme.border).hue;
  return dark
      ? HSLColor.fromAHSL(1, h, 0.25, 0.25).toColor()
      : HSLColor.fromAHSL(1, h, 0.30, 0.6).toColor();
}

class UserBubble extends StatefulWidget {
  const UserBubble({
    super.key,
    required this.content,
    this.attachments,
    this.timestamp,
    this.onRetry,
    this.onEdit,
  });

  final String content;
  final List<MessageAttachment>? attachments;
  final DateTime? timestamp;
  final VoidCallback? onRetry;
  final VoidCallback? onEdit;

  @override
  State<UserBubble> createState() => _UserBubbleState();
}

class _UserBubbleState extends State<UserBubble> {
  bool _hovered = false;

  String _formatTime(DateTime dt) {
    final local = dt.toLocal();
    final now = DateTime.now();
    final h = local.hour.toString().padLeft(2, "0");
    final m = local.minute.toString().padLeft(2, "0");
    final time = "$h:$m";

    final isToday = local.year == now.year && local.month == now.month && local.day == now.day;
    if (isToday) return "Today at $time";

    // show date for anything older
    final day = local.day.toString().padLeft(2, "0");
    final month = local.month.toString().padLeft(2, "0");
    return "${local.year == now.year ? "" : "${local.year}/"}$month/$day at $time";
  }

  @override
  Widget build(BuildContext context) {
    final atts = widget.attachments;
    final muted = Theme.of(context).colorScheme.mutedForeground;

    return MouseRegion(
      onEnter: (_) => setState(() => _hovered = true),
      onExit: (_) => setState(() => _hovered = false),
      child: Align(
      alignment: Alignment.centerRight,
      child: Column(
        crossAxisAlignment: CrossAxisAlignment.end,
        children: [

          if (atts != null && atts.isNotEmpty) ...[
            SingleChildScrollView(
              scrollDirection: Axis.horizontal,
              reverse: true,
              child: Row(
                children: [
                  for (final att in atts)
                    Padding(
                      padding: const EdgeInsets.only(left: 8),
                      child: AttachmentItem(
                        attachment: Attachment(
                          name: att.name,
                          mimeType: att.mimeType,
                          data: Uint8List.fromList(att.data),
                        ),
                        onRemove: () {},
                      ),
                    ),
                ],
              ),
            ),
            const Gap(6),
          ],

          OutlinedContainer(
            padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 10),
            borderColor: _msgColour(context).scaleAlpha(0.9),
            backgroundColor: _msgColour(context),
            boxShadow: [],
            child: SelectableText(widget.content),
          ),

          const Gap(6),

          AnimatedOpacity(
            opacity: _hovered ? 1.0 : 0.0,
            duration: const Duration(milliseconds: 150),
            child: Row(
              mainAxisSize: MainAxisSize.min,
              children: [

                if (widget.timestamp != null)
                  Text(
                    _formatTime(widget.timestamp!),
                    style: TextStyle(color: muted),
                  ).xSmall,

                const Gap(10),

                _ActionBtn(
                  icon: LucideIcons.refreshCw,
                  tooltip: "Retry",
                  onTap: widget.onRetry,
                  color: muted,
                ),
                _ActionBtn(
                  icon: LucideIcons.pencil,
                  tooltip: "Edit",
                  onTap: widget.onEdit,
                  color: muted,
                ),
                _ActionBtn(
                  icon: LucideIcons.copy,
                  tooltip: "Copy",
                  color: muted,
                  onTap: () {
                    Clipboard.setData(ClipboardData(text: widget.content));
                  },
                ),
              ],
            ),
          ),

        ],
      ),
    ));
  }
}


class _ActionBtn extends StatelessWidget {
  const _ActionBtn({
    required this.icon,
    required this.tooltip,
    required this.color,
    this.onTap,
  });

  final IconData icon;
  final String tooltip;
  final Color color;
  final VoidCallback? onTap;

  @override
  Widget build(BuildContext context) {

    if (true) {
      return IconButton.ghost(
        onPressed: () {
          if (onTap != null) onTap!();
        },
        icon: Icon(
          icon,
        ).iconSmall.iconMutedForeground,
      );
    }

    return Tooltip(
      tooltip: TooltipContainer(child: Text(tooltip)),
      child: GestureDetector(
        onTap: onTap,
        child: Padding(
          padding: const EdgeInsets.symmetric(horizontal: 3, vertical: 2),
          child: Icon(icon, size: 14, color: color),
        ),
      ),
    );
  }
}