tm_app/lib/views/tenders/widgets/main_tenders_slider.dart

import 'package:flutter/material.dart';
import 'package:flutter_svg/svg.dart';
import 'package:tm_app/core/theme/colors.dart';
import 'package:tm_app/data/services/model/tender/tender_model.dart';

import '../../../core/constants/assets.dart';
import '../../../core/utils/size_config.dart';
import 'tender_card.dart';

class MainTendersSlider extends StatefulWidget {
  const MainTendersSlider({
    required this.tenders,
    super.key,
    this.isDesktop = false,
  });
  final bool isDesktop;
  final List<TenderModel> tenders;

  @override
  State<MainTendersSlider> createState() => _MainTendersSliderState();
}

class _MainTendersSliderState extends State<MainTendersSlider> {
  final PageController pageController = PageController(initialPage: 0);

  int currentPage = 1;

  void _goToPreviousPage() {
    pageController.previousPage(
      duration: Duration(milliseconds: 300),
      curve: Curves.easeInOutCubic,
    );
    setState(() {
      if (currentPage == 1) {
        return;
      }
      currentPage = currentPage - 1;
    });
  }

  void _goToNextPage() {
    pageController.nextPage(
      duration: Duration(milliseconds: 300),
      curve: Curves.easeInOutCubic,
    );
    setState(() {
      if (currentPage == widget.tenders.length) {
        return;
      }
      currentPage = currentPage + 1;
    });
  }

  @override
  void dispose() {
    pageController.dispose();
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    return SingleChildScrollView(
      child: Stack(children: [_tendersPageView(), _nextPreviousArrows()]),
    );
  }

  Widget _tendersPageView() {
    return SizedBox(
      width: double.infinity,
      height: 719.0.h(),
      child: PageView.builder(
        controller: pageController,
        scrollDirection: Axis.horizontal,
        itemCount: widget.tenders.length,
        onPageChanged: (index) {
          setState(() {
            currentPage = index + 1;
          });
        },
        itemBuilder: (context, index) {
          final tender = widget.tenders[index];
          return TenderCard(tender: tender, isDesktop: widget.isDesktop);
        },
      ),
    );
  }

  Widget _nextPreviousArrows() {
    return Positioned(
      top: 607.0.h(),
      bottom: 52.0.h(),
      left: 9.0.w(),
      right: 9.0.w(),
      child: Row(
        mainAxisAlignment: MainAxisAlignment.spaceBetween,
        children: [_leftArrowButton(), _pageNumberText(), _rightArrowButton()],
      ),
    );
  }

  Widget _leftArrowButton() {
    return InkWell(
      borderRadius: BorderRadius.circular(100),
      onTap: _goToPreviousPage,
      child: Container(
        width: 32.0.w(),
        height: 32.0.w(),
        decoration: BoxDecoration(
          shape: BoxShape.circle,
          border: Border.all(color: AppColors.iconColor, width: 1.5),
        ),
        alignment: Alignment.center,
        child: SvgPicture.asset(
          AssetsManager.arrowLeftSmall,
          colorFilter: ColorFilter.mode(AppColors.iconColor, BlendMode.srcATop),
        ),
      ),
    );
  }

  Widget _pageNumberText() {
    return Text(
      '$currentPage/${widget.tenders.length}',
      style: TextStyle(
        fontSize: 14.0.sp(),
        fontWeight: FontWeight.w500,
        color: AppColors.grey,
      ),
    );
  }

  Widget _rightArrowButton() {
    return InkWell(
      borderRadius: BorderRadius.circular(100),
      onTap: _goToNextPage,
      child: Container(
        width: 32.0.w(),
        height: 32.0.w(),
        decoration: BoxDecoration(
          shape: BoxShape.circle,
          border: Border.all(color: AppColors.iconColor, width: 1.5),
        ),
        alignment: Alignment.center,
        child: SvgPicture.asset(
          AssetsManager.arrowRightSmall,
          colorFilter: ColorFilter.mode(AppColors.iconColor, BlendMode.srcATop),
        ),
      ),
    );
  }
}