<?php

namespace Modules\StaffPayroll\Services;

use App\Models\User;
use Carbon\Carbon;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\Facades\Auth;
use Modules\StaffPayroll\Entities\Invoice;
use Modules\StaffPayroll\Entities\InvoiceSetting;
use Modules\StaffPayroll\Transformers\InvoiceResource;
use Modules\StudioPlus\Entities\StudioPlusVideo;
use Modules\StudioPlusWtiiabaddon\Entities\StudioPlusIncentive;

class InvoiceService
{
    public function getInvoiceAmount(Invoice $invoice): float
    {
        $amount = 0;
        $items = $invoice->items;

        foreach ($items as $item) {
            $amount += $item->quantity * $item->amount;
        }

        return $amount;
    }

    public function getUserInvoiceOfMonth(User $user): Invoice
    {
        $latestInvoice = Invoice::query()
            ->where('user_id', $user->id)
            ->latest()
            ->first();

        if (!$latestInvoice) {
            $invoiceSetting = InvoiceSetting::query()
                ->where('name', 'start_invoice_number')
                ->first()
                ->value ?? 1;
        }

        $latestInvoiceNumber = $latestInvoice
            ? $latestInvoice->invoice_number
            : $invoiceSetting;

        return Invoice::query()
            ->whereBetween(DB::raw('created_at'), [now()->startOfMonth()->toDateString(), now()->lastOfMonth()->toDateString()])
            ->firstOrCreate(
                [
                    'user_id' => $user->id,
                ],
                [
                    'invoice_number' => $latestInvoiceNumber,
                    'issue_date' => now()->toDateString(),
                    'created_by' => Auth::check() ? auth()->id() : null,
                ]
            );
    }

    public function reprocess($invoice, $apply = false)
    {
        $user = $invoice->user;
        $downlines = $user->downlines;
        //$start_date = $invoice->created_at->firstOfMonth();
        //$end_date = $invoice->created_at->lastOfMonth();
        $start_date = Carbon::parse("{$invoice->issue_date}")->firstOfMonth()->startOfDay();
        $end_date = Carbon::parse("{$invoice->issue_date}")->lastOfMonth()->endOfDay();
        $video_upload_count = 0;

        /*$videos = StudioPlusVideo::whereHas('channel.user', function($query) use($user) {
            $query->where('id', $user->id);
        })
        ->whereBetween('created_at', [$start_date, $end_date])
        ->where('status', StudioPlusVideo::STATUS_PUBLISHED_TO_AMAZON)
        ->get();*/

        $videos = $user->getPublishedVideos($start_date, $end_date);
        $invoice->reprocessedItems()->delete();

        // Add 10/25/50 incentive bonus
        $bonus10_incentive = StudioPlusIncentive::where('code', 'bonus-10')->first();
        $bonus25_incentive = StudioPlusIncentive::where('code', 'bonus-25')->first();
        $bonus50_incentive = StudioPlusIncentive::where('code', 'bonus-50')->first();

        $video_upload_count_b10 = 0;
        $video_upload_count_b25 = 0;
        $video_upload_count_b50 = 0;

        foreach ($videos as $video) {
            $video_upload_count++;
            $invoice->addVideoUploadPayout($video, 'reprocessed');

            if ($this->isIncentiveApplicable($bonus10_incentive, $video) && ($video->videoType->vertical_video || $video->asinData->payout_amount > 0)) {
                $video_upload_count_b10++;
            }

            if ($this->isIncentiveApplicable($bonus25_incentive, $video)  && ($video->videoType->vertical_video || $video->asinData->payout_amount > 0)) {
                $video_upload_count_b25++;
            }

            if ($this->isIncentiveApplicable($bonus50_incentive, $video)  && ($video->videoType->vertical_video || $video->asinData->payout_amount > 0)) {
                $video_upload_count_b50++;
            }
        }

        if ($bonus10_incentive) {
            if ($video_upload_count_b10 >= $bonus10_incentive->target_rule) {
                $invoice->addIncentive($bonus10_incentive, 'reprocessed');
            }
        }

        if ($bonus25_incentive) {
            if ($video_upload_count_b25 >= $bonus25_incentive->target_rule) {
                $invoice->addIncentive($bonus25_incentive, 'reprocessed');
            }
        }

        if ($bonus50_incentive) {
            if ($video_upload_count_b50 >= $bonus50_incentive->target_rule) {
                $invoice->addIncentive($bonus50_incentive, 'reprocessed');
            }
        }

        $downline_incentive = StudioPlusIncentive::with('roles')->where('code', 'vcm-downline-bonus')->first();
        if ($downline_incentive && in_array($user->role_id, $downline_incentive->roles->pluck('id')->toArray())) {
            foreach ($downlines as $downline) {
                $videos = $downline->getPublishedVideos($start_date, $end_date);
                
                foreach ($videos as $video) {
                    if ($this->isIncentiveApplicable($downline_incentive, $video)) {
                        $invoice->addIncentive($downline_incentive, 'reprocessed', [
                            'name' => 'Downline Incentives',
                            'description' => "Downline bonus ({$downline->first_name})",
                        ]);
                    }
                }
            }
        }

        //add incentives manually added
        foreach($invoice->items()->whereNull('type')->get() as $incentive){
            $invoice->reprocessedItems()->firstOrCreate(
                [ 
                    'description' =>  $incentive->description 
                ],
                [
                    'item_no' => $invoice->reprocessedItems()->count() + 1,
                    'name' => $incentive->name,
                    'amount' => $incentive->amount,
                    'quantity' => $incentive->quantity,
                    'issue_date' => $incentive->created_at->toDateString(),
                    'created_at' => $incentive->created_at
                ]
            );
        }

        if ($apply) {
            $invoice->applyReprocessedItems();
        }

        return response()->json([
            'invoice' => InvoiceResource::make($invoice->load(['payout', 'user', 'items', 'reprocessedItems']))
        ]);
    }

    public function reprocessAllPending()
    {
        $invoices = Invoice::where('is_approved', false)->get();

        foreach ($invoices as $invoice) {
            $this->reprocess($invoice, true);
        }
    }

    public function isUserIncentiveQualified($user, $incentive)
    {
        $role = $incentive->roles()->where('id', $user->role->id)->first();

        if ($role) {
            return true;
        }

        return false;
    }

    public function isIncentiveApplicable($incentive, $video)
    {
        if ($incentive) {

            $video_types = $incentive->videoTypes()->pluck('studio_plus_video_type_id');
            if ($video_types->count() > 0) {
                return $video_types->contains($video->studio_plus_video_type_id);
            }

            return true;
        }
        
        return false;
    }

    protected function toVideoVariants($variants)
    {
        return array_map(function($variant) {
            if ($variant == 'based-on-a-job') {
                return 'VIDEO BASED ON A JOB';
            } else if ($variant == 'reach-out') {
                return 'REACH OUT';
            } else if ($variant == 'sponsored-product') {
                return 'SPONSORED PRODUCT';
            }
        }, $variants);
    }
}