Teso_Mobile/lib/Pages/Sub_Pages/Explore/search.dart

import 'package:teso/Pages/Sub_Pages/Explore/ExploreBusiness.dart';
import 'package:teso/Pages/Sub_Pages/Explore/ExplorePeople.dart';
import 'package:teso/Pages/Sub_Pages/Explore/ExploreProduct.dart';
import 'package:flutter/material.dart';

import 'package:teso/Classes/TesoUser.dart';
import 'package:shared_preferences/shared_preferences.dart';
import 'package:http/http.dart' as http;
import 'package:teso/util/consts.dart';
import 'dart:convert';
import 'package:teso/Classes/API Clasess/Product.dart';
import 'package:teso/Classes/TesoShop.dart';

class Lookup extends StatefulWidget {
  @override
  _LookupState createState() => _LookupState();
}

class _LookupState extends State<Lookup> with TickerProviderStateMixin {
  List<TesoUser> people = [];
  List<TesoUser> peopleAlert = [];
  List<Product> product = [];
  List<Product> productAlert = [];
  List<TesoShop> businessAlert = [];
  List<TesoShop> business = [];
  TabController tabController;
  var search = new TextEditingController();
  SharedPreferences prefs;
  var future;

  @override
  void initState() {
    super.initState();
    tabController = new TabController(length: 3, vsync: this);
    tabController.addListener(() async {
      if (search.text.isNotEmpty) {
        switch (tabController.index) {
          case 0:
            await lookupUser();
            break;
          case 1:
            await lookupProducts();
            break;
          case 2:
            await lookupBusiness();
            break;
          default:
            await lookupUser();
            break;
        }
      }
    });

    search.addListener(() async {
      if (search.text.isNotEmpty) {
        switch (tabController.index) {
          case 0:
            await lookupUser();
            break;
          case 1:
            await lookupProducts();
            break;
          case 2:
            await lookupBusiness();
            break;
          default:
            await lookupUser();
            break;
        }
      } else {
        setState(() {
          people.clear();
          product.clear();
          business.clear();
        });
      }
    });
  }

  lookupUser() async {
    prefs = await SharedPreferences.getInstance();
    String token = prefs.getString("tokensTeso");
    Map<String, String> requestHeaders = {
      'Content-type': 'application/json',
      'Authorization': token
    };
    String searchValue = search.text;
    var register = serverLocation + 'search/people';
    var client = await http.post(Uri.parse(register),
        body: json.encode(searchValue), headers: requestHeaders);
    if (client.statusCode == 200) {
      var people = jsonDecode(client.body);
      this.people = List<TesoUser>.from(
          people.map((model) => TesoUser.fromJSON(model)).toList());

      updateList();
    } else {
      if (mounted) {
        setState(() {
          people.clear();
        });
      }
    }
  }

  lookupProducts() async {
    prefs = await SharedPreferences.getInstance();
    String token = prefs.getString("tokensTeso");
    Map<String, String> requestHeaders = {
      'Content-type': 'application/json',
      'Authorization': token
    };
    String searchValue = search.text;
    var register = serverLocation + 'search/products';
    var client = await http.post(Uri.parse(register),
        body: json.encode(searchValue), headers: requestHeaders);
    if (client.statusCode == 200) {
      var productItem = jsonDecode(client.body);
      this.product = List<Product>.from(
          productItem.map((model) => Product.fromJson(model)).toList());

      orderProductsList();
    } else {
      if (mounted) {
        setState(() {
          product.clear();
        });
      }
    }
  }

  lookupBusiness() async {
    prefs = await SharedPreferences.getInstance();
    String token = prefs.getString("tokensTeso");
    Map<String, String> requestHeaders = {
      'Content-type': 'application/json',
      'Authorization': token
    };
    String searchValue = search.text;
    var register = serverLocation + 'search/business';
    var client = await http.post(Uri.parse(register),
        body: json.encode(searchValue), headers: requestHeaders);
    if (client.statusCode == 200) {
      var businessItem = jsonDecode(client.body);
      this.business = List<TesoShop>.from(
          businessItem.map((model) => TesoShop.fromJSON(model)).toList());

      orderBusinessList();
    } else {
      if (mounted) {
        setState(() {
          product.clear();
        });
      }
    }
  }

  updateList() {
    if (mounted) {
      setState(() {
        peopleAlert = people;
      });
    }
  }

  orderProductsList() {
    if (mounted) {
      setState(() {
        productAlert = product;
      });
    }
  }

  orderBusinessList() {
    if (mounted) {
      setState(() {
        businessAlert = business;
      });
    }
  }

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

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: PreferredSize(
          child: Container(
            padding: EdgeInsets.symmetric(horizontal: 10),
            margin: EdgeInsets.only(top: 30),
            child: Row(
              crossAxisAlignment: CrossAxisAlignment.start,
              children: <Widget>[
                Expanded(
                  child: Material(
                    color: Colors.black54,
                    elevation: 0,
                    borderRadius: BorderRadius.circular(30.0),
                    child: Row(
                      children: <Widget>[
                        new Expanded(
                          child: TextField(
                            autofocus: false,
                            textAlign: TextAlign.start,
                            controller: search,
                            style: TextStyle(
                              color: Colors.white,
                            ),
                            decoration: InputDecoration(
                              border: InputBorder.none,
                              contentPadding:
                                  EdgeInsets.symmetric(horizontal: 14.0),
                              hintText: "Search",
                              hintStyle: TextStyle(color: Colors.grey),
                            ),
                          ),
                        ),
                        Container(
                          child: InkWell(
                            onTap: () => search.clear(),
                            child: Icon(
                              Icons.close_outlined,
                              color: Colors.white,
                            ),
                          ),
                          margin: EdgeInsets.symmetric(horizontal: 20),
                        ),
                      ],
                    ),
                  ),
                ),
                Container(
                  margin: EdgeInsets.symmetric(horizontal: 20),
                  child: InkWell(
                    onTap: () {
                      Navigator.pop(context);
                    },
                    child: Center(
                      child: Text(
                        "Cancel",
                        style: TextStyle(fontSize: 15),
                      ),
                    ),
                  ),
                )
              ],
            ),
          ),
          preferredSize: Size.fromHeight(50.0)),
      body: Column(
        children: <Widget>[
          TabBar(
            controller: tabController,
            tabs: [
              Tab(
                text: "People",
              ),
              Tab(
                text: "Products",
              ),
              Tab(
                text: "Business",
              ),
            ],
          ),
          Expanded(
            child: TabBarView(
              controller: tabController,
              children: [
                ExplorePeople(
                  people: peopleAlert,
                ),
                ExploreProduct(
                  products: productAlert,
                ),
                ExploreBusiness(
                  businesses: businessAlert,
                ),
              ],
            ),
          ),
        ],
      ),
    );
  }
}