<?php
/**
 * AccountRepository.php
 * Copyright (C) 2016 thegrumpydictator@gmail.com
 *
 * This software may be modified and distributed under the terms of the
 * Creative Commons Attribution-ShareAlike 4.0 International License.
 *
 * See the LICENSE file for details.
 */

declare(strict_types = 1);


namespace FireflyIII\Repositories\Account;

use Carbon\Carbon;
use DB;
use FireflyIII\Models\Account;
use FireflyIII\Models\Transaction;
use FireflyIII\User;
use Illuminate\Support\Collection;
use Log;


/**
 *
 * Class AccountRepository
 *
 * @package FireflyIII\Repositories\Account
 */
class AccountRepository implements AccountRepositoryInterface
{

    /** @var User */
    private $user;

    /**
     * AttachmentRepository constructor.
     *
     * @param User $user
     */
    public function __construct(User $user)
    {
        $this->user = $user;
    }

    /**
     * Moved here from account CRUD
     *
     * @param array $types
     *
     * @return int
     */
    public function count(array $types):int
    {
        $count = $this->user->accounts()->accountTypeIn($types)->count();

        return $count;
    }

    /**
     * Moved here from account CRUD.
     *
     * @param Account $account
     * @param Account $moveTo
     *
     * @return bool
     */
    public function destroy(Account $account, Account $moveTo): bool
    {
        if (!is_null($moveTo->id)) {
            DB::table('transactions')->where('account_id', $account->id)->update(['account_id' => $moveTo->id]);
        }
        if (!is_null($account)) {
            $account->delete();
        }

        return true;
    }

    /**
     * @param $accountId
     *
     * @return Account
     */
    public function find(int $accountId): Account
    {
        $account = $this->user->accounts()->find($accountId);
        if (is_null($account)) {
            return new Account;
        }

        return $account;
    }

    /**
     * @param string $number
     * @param array  $types
     *
     * @return Account
     */
    public function findByAccountNumber(string $number, array $types): Account
    {
        $query = $this->user->accounts()
                            ->leftJoin('account_meta', 'account_meta.account_id', '=', 'accounts.id')
                            ->where('account_meta.name', 'accountNumber')
                            ->where('account_meta.data', json_encode($number));

        if (count($types) > 0) {
            $query->leftJoin('account_types', 'accounts.account_type_id', '=', 'account_types.id');
            $query->whereIn('account_types.type', $types);
        }

        /** @var Collection $accounts */
        $accounts = $query->get(['accounts.*']);
        if ($accounts->count() > 0) {
            return $accounts->first();
        }

        return new Account;
    }

    /**
     * @param string $iban
     * @param array  $types
     *
     * @return Account
     */
    public function findByIban(string $iban, array $types): Account
    {
        $query = $this->user->accounts()->where('iban', '!=', '')->whereNotNull('iban');

        if (count($types) > 0) {
            $query->leftJoin('account_types', 'accounts.account_type_id', '=', 'account_types.id');
            $query->whereIn('account_types.type', $types);
        }

        $accounts = $query->get(['accounts.*']);
        /** @var Account $account */
        foreach ($accounts as $account) {
            if ($account->iban === $iban) {
                return $account;
            }
        }

        return new Account;
    }

    /**
     * @param string $name
     * @param array  $types
     *
     * @return Account
     */
    public function findByName(string $name, array $types): Account
    {
        $query = $this->user->accounts();

        if (count($types) > 0) {
            $query->leftJoin('account_types', 'accounts.account_type_id', '=', 'account_types.id');
            $query->whereIn('account_types.type', $types);

        }
        Log::debug(sprintf('Searching for account named %s of the following type(s)', $name), ['types' => $types]);

        $accounts = $query->get(['accounts.*']);
        /** @var Account $account */
        foreach ($accounts as $account) {
            if ($account->name === $name) {
                Log::debug(sprintf('Found #%d (%s) with type id %d', $account->id, $account->name, $account->account_type_id));

                return $account;
            }
        }
        Log::debug('Found nothing.');

        return new Account;
    }

    /**
     * @param array $accountIds
     *
     * @return Collection
     */
    public function getAccountsById(array $accountIds): Collection
    {
        /** @var Collection $result */
        $query = $this->user->accounts();

        if (count($accountIds) > 0) {
            $query->whereIn('accounts.id', $accountIds);
        }

        $result = $query->get(['accounts.*']);
        $result = $result->sortBy(
            function (Account $account) {
                return strtolower($account->name);
            }
        );

        return $result;
    }

    /**
     * @param array $types
     *
     * @return Collection
     */
    public function getAccountsByType(array $types): Collection
    {
        /** @var Collection $result */
        $query = $this->user->accounts();
        if (count($types) > 0) {
            $query->accountTypeIn($types);
        }

        $result = $query->get(['accounts.*']);
        $result = $result->sortBy(
            function (Account $account) {
                return strtolower($account->name);
            }
        );

        return $result;
    }

    /**
     * @param array $types
     *
     * @return Collection
     */
    public function getActiveAccountsByType(array $types): Collection
    {
        /** @var Collection $result */
        $query = $this->user->accounts()->with(
            ['accountmeta' => function (HasMany $query) {
                $query->where('name', 'accountRole');
            }]
        );
        if (count($types) > 0) {
            $query->accountTypeIn($types);
        }
        $query->where('active', 1);
        $result = $query->get(['accounts.*']);
        $result = $result->sortBy(
            function (Account $account) {
                return strtolower($account->name);
            }
        );

        return $result;
    }

    /**
     * Returns the date of the very first transaction in this account.
     *
     * @param Account $account
     *
     * @return Carbon
     */
    public function oldestJournalDate(Account $account): Carbon
    {
        $first = new Carbon;

        /** @var Transaction $first */
        $date = $account->transactions()
                        ->leftJoin('transaction_journals', 'transaction_journals.id', '=', 'transactions.transaction_journal_id')
                        ->orderBy('transaction_journals.date', 'ASC')
                        ->orderBy('transaction_journals.order', 'DESC')
                        ->orderBy('transaction_journals.id', 'ASC')
                        ->first(['transaction_journals.date']);
        if (!is_null($date)) {
            $first = new Carbon($date->date);
        }

        return $first;
    }

}