<?php

namespace Streamline\Http\Controllers;

use Illuminate\Support\Facades\Auth;
use Illuminate\Support\Facades\Validator;
use Streamline\Models\FrequentlyAskedQuestion;
use Illuminate\Http\Request;
use Streamline\Models\Module;

class FrequentlyAskedQuestionController extends Controller
{
    public function __construct() {
        $this->middleware('auth');
    }

    /**
     * Display a listing of the resource.
     *
     * @return \Illuminate\Http\Response
     */
    public function index() {

        $modules  =  Module::all();
        $module_names =  Module::pluck('name')->toArray();
        $frequently_asked_questions = FrequentlyAskedQuestion::get();

        return view('frequently_asked_questions.index', compact('frequently_asked_questions', 'modules', 'module_names'));
    }

    public function search() {

        $modules  =  Module::all();
        $module_names =  Module::pluck('name')->toArray();
        $faqs = FrequentlyAskedQuestion::pluck('question')->toArray();
        $frequently_asked_questions = FrequentlyAskedQuestion::get();

        $questions_per_module = [];
        foreach ($modules as $module){
            $count = 0;
            foreach ($frequently_asked_questions as $question){
                if($module->id == $question->module_id){
                    $count ++;
                }
            }
            $questions_per_module[$module->id] = $count;
        }

        return view('frequently_asked_questions.search', compact('frequently_asked_questions', 'modules', 'module_names', 'questions_per_module', 'faqs'));
    }

    public function result(Request $request){

        $faqs = FrequentlyAskedQuestion::pluck('question')->toArray();
        if($request->module){
            $questions = FrequentlyAskedQuestion::where('module_id', 'like', $request->module)->get();
        }else{
            $questions = FrequentlyAskedQuestion::where('question', 'like', $request->question)->get();
        }

        return view('frequently_asked_questions.result', compact('questions', 'faqs'));
    }
    /**
     * Show the form for creating a new resource.
     *
     * @return \Illuminate\Http\Response
     */
    public function create() {
        $modules = Module::orderBy('name', 'asc')->pluck('name', 'id')->prepend('-select-', '')->toArray();
        return view('frequently_asked_questions.create', compact('modules'));
    }

    /**
     * Store a newly created resource in storage.
     *
     * @param  \Illuminate\Http\Request  $request
     * @return \Illuminate\Http\Response
     */
    public function store(Request $request) {
        $validator = Validator::make($request->all(), [
            'question' => 'required'
        ]);

        if ($validator->fails()) {
            $string = "";
            foreach ($validator->errors()->getMessages() as $item) {
                $string .= "{$item[0]}<br>";
            }
            return back()->withErrors($validator)->withInput();
        } else {
            $logged_in_user_id = Auth::user()->id;
            $frequently_asked_question = new FrequentlyAskedQuestion;

            $frequently_asked_question->question = $request->question;
            $frequently_asked_question->module_id = $request->module_id;
            $frequently_asked_question->reference_url = $request->reference_url;
            $frequently_asked_question->additional_reference_url = $request->additional_reference_url;
            $frequently_asked_question->answer = $request->answer;
            $frequently_asked_question->created_by = $logged_in_user_id;

            try {
                $frequently_asked_question->save();
                flash($request->name . " FrequentlyAskedQuestion has been saved")->success();
                return redirect("/frequently_asked_questions/");
            } catch (QueryException $e) {
                $errorCode = $e->errorInfo[1];
                if ($errorCode == 1062) { //error code for duplicate entry to a unique field
                    flash($request->name . " FrequentlyAskedQuestion already exists!")->error();
                    return back()->withInput();
                }
            }
        }
    }

    /**
     * Display the specified resource.
     *
     * @param  int  $id
     * @return \Illuminate\Http\Response
     */
    public function show($id) {
        //
    }

    /**
     * Show the form for editing the specified resource.
     *
     * @param  int  $id
     * @return \Illuminate\Http\Response
     */
    public function edit($id) {
        $frequently_asked_question = FrequentlyAskedQuestion::where(['id' => $id])->first();
        $modules = Module::orderBy('name', 'asc')->pluck('name', 'id')->prepend('-select-', '')->toArray();

        if (!$frequently_asked_question) {
            flash()->error("There is no such Question");
            return redirect('/frequently_asked_questions/');
        } else {
            return view('frequently_asked_questions.edit.single', compact('frequently_asked_question', 'modules'));
        }
    }

    /**
     * Update the specified resource in storage.
     *
     * @param  \Illuminate\Http\Request  $request
     * @param  int  $id
     * @return \Illuminate\Http\Response
     */
    public function update(Request $request, $id) {
        $validator = Validator::make($request->all(), [
            'question' => 'required'
        ]);

        if ($validator->fails()) {
            $string = "";
            foreach ($validator->errors()->getMessages() as $item) {
                $string .= "{$item[0]}<br>";
            }
            return back()->withErrors($validator)->withInput();
        } else {
            $logged_in_user_id = Auth::user()->id;
            $frequently_asked_question = FrequentlyAskedQuestion::find($id);

            $frequently_asked_question->question = $request->question;
            $frequently_asked_question->module_id = $request->module_id;
            $frequently_asked_question->reference_url = $request->reference_url;
            $frequently_asked_question->additional_reference_url = $request->additional_reference_url;
            $frequently_asked_question->answer = $request->answer;
            $frequently_asked_question->created_by = $logged_in_user_id;

            try {
                $frequently_asked_question->save();
                flash($request->name . " Question has been updated")->success();
                return redirect("/frequently_asked_questions/");
            } catch (QueryException $e) {
                $errorCode = $e->errorInfo[1];
                if ($errorCode == 1062) { //error code for duplicate entry to a unique field
                    flash($request->name . " Question already exists!")->error();
                    return back()->withInput();
                }
            }
        }
    }

    public function bulk_edit() {
        $frequently_asked_questions = FrequentlyAskedQuestion::all();
        $modules = Module::orderBy('name', 'asc')->pluck('name', 'id')->prepend('-select-', '')->toArray();

        if (!$frequently_asked_questions) {
            flash()->error("There is no such Question");
            return redirect('/frequently_asked_questions/');
        } else {
            return view('frequently_asked_questions.edit.all', compact('frequently_asked_questions', 'modules'));
        }
    }

    public function bulk_update(Request $request){

        $ids = $request->id;
        $questions = $request->question;
        $answers = $request->answers;
        $modules = $request->module_id;
        $logged_in_user = Auth::id();

        for ($x = 0; $x < count($ids); $x++){
            $question = FrequentlyAskedQuestion::find($ids[$x]);
            $question->question = $questions[$x];
            $question->answer = $answers[$x];
            $question->module_id = $modules[$x];
            $question->updated_by = $logged_in_user;
            $question->save();
        }
        flash('Questions have been updated successfully.')->success();
        return redirect()->route('frequently_asked_questions.index');
    }

    /**
     * Remove the specified resource from storage.
     *
     * @param  int  $id
     * @return \Illuminate\Http\Response
     */
    public function destroy($id) {
        $frequently_asked_question = FrequentlyAskedQuestion::find($id);

        if ($frequently_asked_question->delete()):
            flash("Question has been deleted.")->success();
            return redirect('/frequently_asked_questions/');
        endif;
    }

    /**
     * Display a listing of the inactive resource(s).
     *
     * @return \Illuminate\Http\Response
     */
    public function inactive() {

        $frequently_asked_questions = FrequentlyAskedQuestion::onlyTrashed()
            ->orderBy('name', 'asc')
            ->paginate(50);

        if (count($frequently_asked_questions) < 1) {
            flash()->error("There is no inactive supplier");
            return redirect('/frequently_asked_questions/');
        } else {
            return view('frequently_asked_questions.inactive', compact('frequently_asked_questions'));
        }
    }

    /**
     * Activate the specified resource in storage.
     *
     * @param  int  $id
     * @return \Illuminate\Http\Response
     */
    public function activate($id) {
        $frequently_asked_question = FrequentlyAskedQuestion::withTrashed()->find($id);

        if ($frequently_asked_question->restore()):
            flash("Question has been activated.")->success();
            return redirect('/frequently_asked_questions/inactive');
        endif;
    }

}