import 'package:flutter/material.dart';

import '../tema/pluriwave_tokens.dart';
import '../tema/pluriwave_theme.dart';

enum PluriIconGlyph { home, search, favorites, alarm, player, settings }

enum PluriIconVariant { outline, filled, activeGlow }

class PluriIcon extends StatelessWidget {
  const PluriIcon({
    super.key,
    required this.glyph,
    this.variant = PluriIconVariant.outline,
    this.size = 24,
    this.semanticLabel,
  });

  final PluriIconGlyph glyph;
  final PluriIconVariant variant;
  final double size;
  final String? semanticLabel;

  @override
  Widget build(BuildContext context) {
    final tokens = context.pluriTokens;
    final asset = _resolveAsset();
    final resolvedColor = _resolveColor(context, tokens);
    final icon =
        asset == null
            ? Icon(_resolveData(), size: size, color: resolvedColor)
            : Opacity(
              opacity: variant == PluriIconVariant.outline ? 0.78 : 1,
              child: Image.asset(
                asset,
                width: size,
                height: size,
                fit: BoxFit.contain,
                errorBuilder:
                    (_, __, ___) =>
                        Icon(_resolveData(), size: size, color: resolvedColor),
              ),
            );
    final child =
        variant == PluriIconVariant.activeGlow
            ? Container(
              width: size + 14,
              height: size + 14,
              decoration: BoxDecoration(
                shape: BoxShape.circle,
                boxShadow: [
                  BoxShadow(
                    color: tokens.glowColor,
                    blurRadius: 18,
                    spreadRadius: 1,
                  ),
                ],
              ),
              alignment: Alignment.center,
              child: icon,
            )
            : icon;

    return Semantics(
      label: semanticLabel ?? _fallbackLabel(glyph),
      image: true,
      child: ExcludeSemantics(child: child),
    );
  }

  String? _resolveAsset() {
    return switch (glyph) {
      PluriIconGlyph.home => 'assets/icons/pluri_home.png',
      PluriIconGlyph.search => 'assets/icons/pluri_search.png',
      PluriIconGlyph.favorites => 'assets/icons/pluri_favorites.png',
      PluriIconGlyph.alarm => null,
      PluriIconGlyph.player => 'assets/icons/pluri_player.png',
      PluriIconGlyph.settings => 'assets/icons/pluri_settings.png',
    };
  }

  Color _resolveColor(BuildContext context, PluriWaveTokens tokens) {
    if (variant == PluriIconVariant.activeGlow) return tokens.electricMagenta;
    if (variant == PluriIconVariant.filled) {
      return Theme.of(context).colorScheme.onSurface;
    }
    return Theme.of(context).colorScheme.onSurface.withValues(alpha: 0.78);
  }

  IconData _resolveData() {
    return switch ((glyph, variant)) {
      (PluriIconGlyph.home, PluriIconVariant.outline) => Icons.home_outlined,
      (PluriIconGlyph.home, _) => Icons.home_rounded,
      (PluriIconGlyph.search, PluriIconVariant.outline) =>
        Icons.search_outlined,
      (PluriIconGlyph.search, _) => Icons.search_rounded,
      (PluriIconGlyph.favorites, PluriIconVariant.outline) =>
        Icons.favorite_border_rounded,
      (PluriIconGlyph.favorites, _) => Icons.favorite_rounded,
      (PluriIconGlyph.alarm, PluriIconVariant.outline) => Icons.alarm_outlined,
      (PluriIconGlyph.alarm, _) => Icons.alarm_rounded,
      (PluriIconGlyph.player, PluriIconVariant.outline) =>
        Icons.play_circle_outline_rounded,
      (PluriIconGlyph.player, _) => Icons.play_circle_rounded,
      (PluriIconGlyph.settings, PluriIconVariant.outline) =>
        Icons.settings_outlined,
      (PluriIconGlyph.settings, _) => Icons.settings_rounded,
    };
  }

  String _fallbackLabel(PluriIconGlyph glyph) {
    return switch (glyph) {
      PluriIconGlyph.home => 'Inicio',
      PluriIconGlyph.search => 'Buscar',
      PluriIconGlyph.favorites => 'Favoritos',
      PluriIconGlyph.alarm => 'Alarmas',
      PluriIconGlyph.player => 'Reproductor',
      PluriIconGlyph.settings => 'Ajustes',
    };
  }
}