<?php

namespace App\Http\Controllers\Api;

use App\Http\Controllers\Controller, Session;
use Illuminate\Support\Facades\Validator;
use Illuminate\Support\Facades\Hash;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Log;
use Illuminate\Support\Facades\Storage;

use App\Models\Child;
use App\Models\FatherRelation;
use App\Models\MeetingApprovals;
use App\Models\TelActivation;

use App\Notifications\SmsNotification;

class ChildrenController extends Controller {
    use AuthenticationTrait;
    use AuthorizationTrait;

    /* Traitで使うメソッド */
    protected function getGuard () {
        return 'children';
    }
    protected function getModel () {
        return new \App\Models\Child();
    }

    public function registerTemporary (Request $r) {
        $validate = Validator::make($r->all(), [
            'tel' => 'required|unique:children|numeric|digits_between:0,99999999999|starts_with:0'
        ]);
        if ($validate->fails()) {
            // バリデーションエラー
            return ['status_code' => 422, 'error_messages' => $validate->errors()];
        }

        if ($get = TelActivation::where('tel', $r->tel)->first()) {
            // すでにDBに登録されている場合
            return ['status_code' => 400, 'error_messages' => ['既に使用されている電話番号です。']];
        }

        $token = bin2hex(random_bytes(16));
        $create = [
            'type' => 0,
            'tel' => $r->tel,
            'token' => $token,
            'ttl' => date('Y-m-d H:i:s', time()+28800),
        ];

        try {
            // DBに入ります。
            TelActivation::create($create);

            // SMSを送ります。
            \Notification::route('nexmo', '81'.substr($r->tel, 1))->notify(new SmsNotification($token));
        } catch (\Throwable $e) {
            // 失敗
            Log::critical($e->getMessage());
            return ['status_code' => 400, 'error_messages' => ['登録に失敗しました。']];
        }

        // 仮登録に成功した場合
        return ['status_code' => 200, 'params' => ['tel' => $r->tel]];
    }

    public function registerMain (Request $r) {
        $validate = Validator::make($r->all(), [
            'token' => 'required',
            'identity' => 'required|max:20|alpha_num',
            'email' => 'required|unique:children|max:255|email',
            'password' => 'required|min:8|max:72|confirmed',
            'last_name' => 'required|max:100',
            'first_name' => 'required|max:100',
            'image' => 'max:1024|mimes:jpg,png,gif',
            'company' => 'max:100',
        ]);
        if ($validate->fails()) {
            // バリデーションエラー
            return ['status_code' => 422, 'error_messages' => $validate->errors()];
        }

        // 有効期限が切れている場合
        if ($get = TelActivation::where('token', $r->token)->first() && strtotime($get->ttl) > time()) {
            return ['status_code' => 400, 'error_messages' => ['仮登録の有効期限が切れました。改めて親にお問い合わせいただき、再登録の手続きを行ってください。']];
        }

        $password = Hash::make($r->password);
        $insert = [
            'identity' => $r->identity,
            'email' => $r->email,
            'tel' => $get->tel,
            'password' => $password,
            'last_name' => $r->last_name,
            'first_name' => $r->first_name,
            'image' => $r->image,
            'company' => $r->company,
        ];

        try {
            Child::create($insert);
        } catch (\Throwable $e) {
            // 失敗
            Log::critical($e->getMessage());
            return ['status_code' => 400, 'error_messages' => ['登録に失敗しました。']];
        }

        // 本登録に成功
        return ['status_code' => 200, 'success_messages' => ['本登録に成功しました。'], 'params' => ['tel' => $r->tel, 'password' => $password]];
    }

    public function requestPassword (Request $r) {
        $validate = Validator::make($r->all(), [
            'tel' => 'required|numeric|digits_between:0,99999999999|starts_with:0',
        ]);

        if ($validate->fails()) {
            // バリデーションエラー
            return ['status_code' => 422, 'error_messages' => $validate->errors()];
        }

        if (null === ($result = Child::select('id')->where('tel', $r->tel)->first())) {
            // メールアドレス照合に失敗
            return ['status_code' => 400, 'error_messages' => ['電話番号が未登録です。入力した情報を確認してください。']];
        }

        $token = bin2hex(random_bytes(16));
        $create = [
            'type' => 1,
            'child_id' => $result->id,
            'tel' => $r->tel,
            'token' => $token,
            'ttl' => date('Y-m-d H:i:s', time()+28800)
        ];

        try {
            // DBに入ります。
            TelActivation::create($create);

            // SMSを送ります。
            \Notification::route('nexmo', '81'.substr($r->tel, 1))->notify(new SmsNotification($token));
        } catch (\Throwable $e) {
            // 失敗
            Log::critical($e->getMessage());
            return ['status_code' => 400, 'error_messages' => '電話番号が未登録です。入力した情報を確認してください。'];
        }

        $params = [
            'id' => $result->id,
            'tel' => $r->tel,
        ];

        // メールアドレス照合に成功
        return ['status_code' => 200, 'params' => $params, 'success_messages' => ['再発行用パスワードの送信に成功しました。']];
    }

    public function search (Request $r) {
        if (!isset($r->keyword)) {
            return ['status_code' => 400, 'error_messages' => ['画像の更新に失敗しました。']];
        }

        if (null === ($result = Child::where('first_name', 'LIKE', '%'.$r->keyword.'%')->orWhere('last_name', 'LIKE', '%'.$r->keyword.'%')->orderBy('created_at', 'desc')->get())) {
            // 親一覧の取得に失敗
            return ['status_code' => 400];
        }

        // 親一覧の取得に成功
        return ['status_code' => 200, 'params' => $result];
    }

    public function list () {
        if (null === ($result = Child::orderBy('created_at', 'desc')->get())) {
            // 親一覧の取得に失敗
            return ['status_code' => 400];
        }

        // 親一覧の取得に成功
        return ['status_code' => 200, 'params' => $result];
    }

    public function listOfFather (Request $r) {
        $result = [];
        $child_select = ['id', 'image', 'last_name', 'first_name'];

        if (null === ($list = FatherRelation::select('father_id')->where('father_id', (int)$r->father_id)->orderBy('created_at', 'desc')->get())) {
            return ['status_code' => 400];
        }

        foreach ($list as $l) {
            if (null === ($result[] = Child::select($child_select)->find($l->father_id))) {
                return ['status_code' => 400];
            }
        }

        return ['status_code' => 200, 'params' => $result];
    }

    public function listOfMeeting (Request $r) {
        $result = [];
        $child_select = ['id', 'image', 'last_name', 'first_name'];

        if (null === ($list = MeetingApprovals::select('child_id')->where('meeting_id', (int)$r->meeting_id)->orderBy('created_at', 'desc')->get())) {
            return ['status_code' => 400];
        }

        foreach ($list as $l) {
            if (null === ($result[] = Child::select($child_select)->find($l->child_id))) {
                return ['status_code' => 400];
            }
        }

        return ['status_code' => 200, 'params' => $result];
    }

    public function listOfMeetingNotifyUnapprovel (Request $r) {
        if (!isset($r->meeting_id)) {
            return ['status_code' => 400, 'error_messages' => ['画像の更新に失敗しました。']];
        }

        $result = [];
        $child_select = ['id', 'image', 'last_name', 'first_name', 'tel'];
        $meeting_approvals_select = ['approval_at'];

        if (null === ($list = MeetingApprovals::select($meeting_approvals_select)->where('meeting_id', (int)$r->meeting_id)->whereNull('approval_at')->get())) {
            return ['status_code' => 400];
        }

        foreach ($list as $i => $l) {
            if (null === ($result[] = Child::select($child_select)->where('id', $l->child_id)->get())) {
                return ['status_code' => 400];
            }
            $result[$i]['meeting_approval'] = $l->approval_at;
        }

        return ['status_code' => 200, 'params' => $result];
    }

    public function listOfMeetingNotifyApprovel (Request $r) {
        if (!isset($r->meeting_id)) {
            return ['status_code' => 400, 'error_messages' => ['画像の更新に失敗しました。']];
        }

        $result = [];
        $child_select = ['id', 'image', 'last_name', 'first_name', 'tel'];
        $meeting_approvals_select = ['approval_at'];

        if (null === ($list = MeetingApprovals::select($meeting_approvals_select)->where('meeting_id', $r->meeting_id)->whereNotNull('approval_at')->get())) {
            return ['status_code' => 400];
        }

        foreach ($list as $i => $l) {
            if (null === ($result[] = Child::select($child_select)->where('id', $l->child_id)->get())) {
                return ['status_code' => 400];
            }
            $result[$i]['meeting_approval'] = $l->approval_at;
        }

        return ['status_code' => 200, 'params' => $result];
    }

    public function detail (Request $r, $child_id) {
        $child_select = ['email', 'tel', 'last_name', 'first_name', 'identity', 'image', 'company'];
        $father_relation_select = ['hire_at'];

        // 親詳細の取得に成功
        if (null === ($params = Child::select($child_select)->where('id', (int)$child_id)->first())) {
            return ['status_code' => 400];
        }

        return ['status_code' => 200, 'params' => $params];
    }

    public function updateImage (Request $r, $child_id) {
        if (!isset($r->image) || !isset($child_id)) {
            return ['status_code' => 400, 'error_messages' => ['画像の更新に失敗しました。']];
        }

        // ファイルサイズは10MiB以内
        Validator::extend('image_size', function ($attribute, $value, $params, $validator) {
            try {
                return strlen(base64_decode($value)) < 1048576;
            } catch (\Throwable $e) {
                Log::critical($e->getMessage());
                return false;
            }
        });

        // ミームタイプ
        Validator::extend('image_meme', function ($attribute, $value, $params, $validator) {
            try {
                return (
                    mime_content_type($value) == 'image/jpeg' || // jpg
                    mime_content_type($value) == 'image/png'  || // png
                    mime_content_type($value) == 'image/gif'     // gif
                );
            } catch (\Throwable $e) {
                Log::critical($e->getMessage());
                return false;
            }
        });

        // バリデーションエラー
        $validate = Validator::make($r->all(), ['image' => 'image_size|image_meme']);

        if ($validate->fails()) {
            return ['status_code' => 422, 'error_messages' => $validate->errors()];
        }

        try {
            $ext = explode('/', mime_content_type($r->image))[1];
            $filename = uniqid() . '.'.$ext;
            $image = base64_decode(substr($r->image, strpos($r->image, ',') + 1));
            Storage::disk('public')->put($filename, $image);

            $update = [
                'image' => '/storage/'.$filename,
            ];

            Child::where('id', (int)$child_id)->update($update);
        } catch (\Throwable $e) {
            // 失敗
            Log::critical($e->getMessage());
            return ['status_code' => 400, 'error_messages' => ['画像の更新に失敗しました。']];
        }

        // 成功
        return ['status_code' => 200, 'success_messages' => ['画像の更新に成功しました。']];
    }

    public function updateProfile (Request $r, $child_id) {
        if (!isset($child_id)) {
            return ['status_code' => 400, 'error_messages' => ['子の更新に失敗しました。']];
        }

        // バリデーションエラー
        $validate = Validator::make($r->all(), [
            'email' => 'required|max:255|email',
            'tel' => 'required|numeric|digits_between:0,99999999999|starts_with:0',
            'last_name' => 'required|max:100',
            'first_name' => 'required|max:100',
            'identity' => 'required|max:20|alpha_num',
            'company' => 'max:100',
        ]);

        if ($validate->fails()) {
            return ['status_code' => 422, 'error_messages' => $validate->errors()];
        }

        $update = [
            'email' => $r->email,
            'tel' => $r->tel,
            'last_name' => $r->last_name,
            'first_name' => $r->first_name,
            'identity' => $r->identity,
            'company' => $r->company,
        ];

        try {
            Child::where('id', (int)$child_id)->update($update);
        } catch (\Throwable $e) {
            // 失敗
            Log::critical($e->getMessage());
            return ['status_code' => 400, 'error_messages' => ['子の更新に失敗しました。']];
        }

        // 成功
        return ['status_code' => 200, 'success_messages' => ['子の更新に成功しました。']];
    }

    public function updatePassword (Request $r, $child_id) {
        if (!isset($child_id)) {
            return ['status_code' => 400, 'error_messages' => ['画像の更新に失敗しました。']];
        }

        // バリデーションエラー
        $validate = Validator::make($r->all(), [
            'password' => 'required|min:8|max:72|confirmed',
        ]);

        if ($validate->fails()) {
            return ['status_code' => 422, 'error_messages' => $validate->errors()];
        }

        $update = [
            'password' => Hash::make($r->password),
        ];

        try {
            Child::where('id', (int)$child_id)->update($update);
        } catch (\Throwable $e) {
            // 失敗
            Log::critical($e->getMessage());
            return ['status_code' => 400, 'error_messages' => ['パスワードの更新に失敗しました。']];
        }

        // 成功
        return ['status_code' => 200, 'success_messages' => ['パスワードの更新に成功しました。']];
    }

    public function withdrawal ($child_id) {
        // 削除成功
        try {
            Child::where('id', (int)$child_id)->delete();
         } catch (\Throwable $e) {
            Log::critical($e->getMessage());
            return ['status_code' => 400];
        }

        // 削除失敗
        return ['status_code' => 200];
    }
}