import 'dart:ffi';

import 'package:flutter/material.dart';
import 'package:seshat/domain/models/bal.dart';
import 'package:seshat/domain/models/book.dart';
import 'package:seshat/ui/add_page/view_model/add_view_model.dart';
import 'package:seshat/utils/result.dart';

class ConfirmationPopup extends StatefulWidget {
  const ConfirmationPopup({
    super.key,
    required this.exitPopup,
    required this.setPrice,
    required this.viewModel,
    required this.book,
  });

  final Function(BuildContext) exitPopup;
  final Function(num) setPrice;
  final AddViewModel viewModel;
  final Book book;

  @override
  State<ConfirmationPopup> createState() => _ConfirmationPopupState();
}

class _ConfirmationPopupState extends State<ConfirmationPopup> {
  final GlobalKey<FormState> _formKey = GlobalKey<FormState>();
  double price = 0;
  @override
  Widget build(BuildContext context) {
    final theme = Theme.of(context);
    return AlertDialog(
      title: Text("Prix"),
      content: Form(
        key: _formKey,
        child: SingleChildScrollView(
          child: Column(
            mainAxisSize: MainAxisSize.min,
            crossAxisAlignment: CrossAxisAlignment.stretch,
            children: [
              RichText(
                text: TextSpan(
                  style: theme.textTheme.bodyMedium,
                  children: [
                    TextSpan(
                      text: "Titre : ",
                      style: TextStyle(fontWeight: FontWeight.bold),
                    ),
                    TextSpan(text: widget.book.title),
                  ],
                ),
              ),
              RichText(
                text: TextSpan(
                  style: theme.textTheme.bodyMedium,
                  children: [
                    TextSpan(
                      text: "Auteur·ice : ",
                      style: TextStyle(fontWeight: FontWeight.bold),
                    ),
                    TextSpan(text: widget.book.author),
                  ],
                ),
              ),
              RichText(
                text: TextSpan(
                  style: theme.textTheme.bodyMedium,
                  children: [
                    TextSpan(
                      text: "Prix à neuf : ",
                      style: TextStyle(fontWeight: FontWeight.bold),
                    ),
                    TextSpan(text: widget.book.priceNew.replaceAll("EUR", "€")),
                  ],
                ),
              ),
              SizedBox(height: 10),
              (widget.viewModel.askPrice)
                  ? TextFormField(
                      decoration: InputDecoration(
                        labelText: "Prix",
                        border: OutlineInputBorder(),
                        suffixText: "€",
                      ),
                      keyboardType: TextInputType.number,
                      validator: (value) {
                        if (value == null || value.isEmpty) {
                          return "Indiquez un prix";
                        } else if (num.tryParse(value) == null) {
                          return "Le prix doit être un nombre";
                        }
                        return null;
                      },
                      onSaved: (newValue) {
                        price = double.parse(newValue!);
                      },
                    )
                  : SizedBox(),
            ],
          ),
        ),
      ),
      actions: [
        TextButton(
          onPressed: () {
            ScaffoldMessenger.of(context).showSnackBar(
              SnackBar(
                content: Text("Le livre n'a pas été enregistré"),
                behavior: SnackBarBehavior.floating,
              ),
            );
            widget.exitPopup(context);
          },
          child: Text("Annuler"),
        ),
        TextButton(
          onPressed: () async {
            var result = await widget.viewModel.sendBook(
              widget.book,
              widget.viewModel.currentOwner!,
              Bal(id: 1),
              price,
            );
            switch (result) {
              case Ok():
                switch (widget.viewModel.askPrice) {
                  case true:
                    if (_formKey.currentState!.validate()) {
                      _formKey.currentState!.save();
                      if (context.mounted) {
                        ScaffoldMessenger.of(context).showSnackBar(
                          SnackBar(
                            content: Text(
                              "\"${widget.book.title}\" ($price€) a bien été enregistré",
                            ),
                            behavior: SnackBarBehavior.floating,
                          ),
                        );
                        widget.exitPopup(context);
                      }
                    }
                    break;
                  case false:
                    if (context.mounted) {
                      ScaffoldMessenger.of(context).showSnackBar(
                        SnackBar(
                          content: Text(
                            "\"${widget.book.title}\" (PL) a bien été enregistré",
                          ),
                          behavior: SnackBarBehavior.floating,
                        ),
                      );
                      widget.exitPopup(context);
                    }
                }

                break;
              case Error():
                if (context.mounted) {
                  ScaffoldMessenger.of(context).showSnackBar(
                    SnackBar(
                      content: Text(
                        "Une erreur est survenue : ${result.error}",
                      ),
                    ),
                  );
                }
            }
          },
          child: Text("Valider"),
        ),
      ],
    );
  }
}