<?php

namespace App\Http\Controllers;

use App\LinkCode;
use App\Services\CodeGeneratorService;
use App\Services\LodestoneApiService;
use App\Services\LodestoneCacheService;
use App\UserLink;
use Carbon\Carbon;

class LodestoneLinkController extends Controller
{
    private $codeGeneratorService;
    private $lodestoneCacheService;
    private $lodestoneApiService;

    public function __construct(
        CodeGeneratorService $codeGeneratorService,
        LodestoneCacheService $lodestoneCacheService,
        LodestoneApiService $lodestoneApiService
    )
    {
        $this->codeGeneratorService = $codeGeneratorService;
        $this->lodestoneCacheService = $lodestoneCacheService;
        $this->lodestoneApiService = $lodestoneApiService;
    }

    public function checkDiscordName(
        string $server,
        string $name,
        int $discordGuildId,
        int $discordUserId
    ) {
        $character = $this->lodestoneCacheService->getCharacterByName($server, $name, $this->lodestoneApiService)->content;

        // Check already linked
        if (UserLink::where('lodestoneId', $character['Character']['ID'])->count() > 0) {
            return [
                'linked' => true,
                'linkCode' => null,
                'expires' => null
            ];
        }

        // Check code exists
        $linkCode = LinkCode::where('lodestoneId', $character['Character']['ID'])->first();
        $expirationTime = Carbon::now()->addMinutes(5);
        if ($linkCode !== null && $linkCode->expires > Carbon::now()) {
            $linkCode->expires = $expirationTime;
            $linkCode->save();
        } else {
            if ($linkCode !== null)
                $linkCode->delete();
            $identifier = $this->codeGeneratorService->generateIdentifierDiscordName($server, $name, $discordGuildId, $discordUserId);
            $code = $this->codeGeneratorService->generateCode(
                'discord',
                $identifier
            );
            $linkCode = LinkCode::create([
                'lodestoneId' => $character['Character']['ID'],
                'discordUserId' => $discordUserId,
                'expires' => $expirationTime,
                'code' => $code
            ]);
        }

        return [
            'linked' => false,
            'linkCode' => $linkCode->code,
            'expires' => $linkCode->expires
        ];
    }

    public function checkDiscordId(
        int $lodestoneId,
        int $discordGuildId,
        int $discordUserId
    ) {
        $character = $this->lodestoneCacheService->getCharacterById($lodestoneId, $this->lodestoneApiService)->content;

        // Check already linked
        if (UserLink::where('lodestoneId', $character['Character']['ID'])->count() > 0) {
            return [
                'linked' => true,
                'linkCode' => null,
                'expires' => null
            ];
        }

        // Check code exists
        $linkCode = LinkCode::where('lodestoneId', $character['Character']['ID'])->first();
        $expirationTime = Carbon::now()->addMinutes(5);
        if ($linkCode !== null && $linkCode->expires > Carbon::now()) {
            $linkCode->expires = $expirationTime;
            $linkCode->save();
        } else {
            if ($linkCode !== null)
                $linkCode->delete();
            $identifier = $this->codeGeneratorService->generateIdentifierDiscordId($lodestoneId, $discordGuildId, $discordUserId);
            $code = $this->codeGeneratorService->generateCode(
                'discord',
                $identifier
            );
            $linkCode = LinkCode::create([
                'lodestoneId' => $character['Character']['ID'],
                'discordUserId' => $discordUserId,
                'expires' => $expirationTime,
                'code' => $code
            ]);
        }

        return [
            'linked' => false,
            'linkCode' => $linkCode->code,
            'expires' => $linkCode->expires
        ];
    }

    public function checkWebsiteName(
        string $server,
        string $name,
        string $hostname,
        int $websiteUserId
    ) {
        $character = $this->lodestoneCacheService->getCharacterByName($server, $name, $this->lodestoneApiService)->content;

        // Check already linked
        if (UserLink::where('lodestoneId', $character['Character']['ID'])->count() > 0) {
            return [
                'linked' => true,
                'linkCode' => null,
                'expires' => null
            ];
        }

        // Check code exists
        $linkCode = LinkCode::where('lodestoneId', $character['Character']['ID'])->first();
        $expirationTime = Carbon::now()->addMinutes(5);
        if ($linkCode !== null && $linkCode->expires > Carbon::now()) {
            $linkCode->expires = $expirationTime;
            $linkCode->save();
        } else {
            if ($linkCode !== null)
                $linkCode->delete();
            $identifier = $this->codeGeneratorService->generateIdentifierWebsiteName($server, $name, $hostname, $websiteUserId);
            $code = $this->codeGeneratorService->generateCode(
                'discord',
                $identifier
            );
            $linkCode = LinkCode::create([
                'lodestoneId' => $character['Character']['ID'],
                'websiteUserId' => $websiteUserId,
                'expires' => $expirationTime,
                'code' => $code
            ]);
        }

        return [
            'linked' => false,
            'linkCode' => $linkCode->code,
            'expires' => $linkCode->expires
        ];
    }

    public function checkWebsiteId(
        int $lodestoneId,
        string $hostname,
        int $websiteUserId
    ) {
        $character = $this->lodestoneCacheService->getCharacterById($lodestoneId, $this->lodestoneApiService)->content;

        // Check already linked
        if (UserLink::where('lodestoneId', $character['Character']['ID'])->count() > 0) {
            return [
                'linked' => true,
                'linkCode' => null,
                'expires' => null
            ];
        }

        // Check code exists
        $linkCode = LinkCode::where('lodestoneId', $character['Character']['ID'])->first();
        $expirationTime = Carbon::now()->addMinutes(5);
        if ($linkCode !== null && $linkCode->expires > Carbon::now()) {
            $linkCode->expires = $expirationTime;
            $linkCode->save();
        } else {
            if ($linkCode !== null)
                $linkCode->delete();
            $identifier = $this->codeGeneratorService->generateIdentifierWebsiteId($lodestoneId, $hostname, $websiteUserId);
            $code = $this->codeGeneratorService->generateCode(
                'discord',
                $identifier
            );
            $linkCode = LinkCode::create([
                'lodestoneId' => $character['Character']['ID'],
                'websiteUserId' => $websiteUserId,
                'expires' => $expirationTime,
                'code' => $code
            ]);
        }

        return [
            'linked' => false,
            'linkCode' => $linkCode->code,
            'expires' => $linkCode->expires
        ];
    }

    public function linkDiscord(
        int $lodestoneId,
        int $discordGuildId,
        int $discordUserId
    ) {}

    public function linkWebsite(
        int $lodestoneId,
        string $hostname,
        int $websiteId
    ) {}
}