<?php

/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */


// Detect if loaded by the user or by PHP
if (count(get_included_files()) == 1) {
    define("LOADED", true);
} else {
    define("LOADED", false);
}

require_once __DIR__ . "/../required.php";

// Allow access with a download code, for mobile app and stuff
$date = date("Y-m-d H:i:s");
if (isset($VARS['code']) && LOADED) {
    if (!$database->has('report_access_codes', ["AND" => ['code' => $VARS['code'], 'expires[>]' => $date]])) {
        dieifnotloggedin();
    }
} else {
    dieifnotloggedin();
}

// Delete old DB entries
$database->delete('report_access_codes', ['expires[<=]' => $date]);

if (LOADED) {
    if (isset($VARS['type']) && isset($VARS['format'])) {
        generateReport($VARS['type'], $VARS['format'], $VARS['register'], $VARS['startdate'], $VARS['enddate']);
        die();
    } else {
        $Strings->get("invalid parameters");
        die();
    }
}

function getCashFlowReport($register = null, $start = null, $end = null) {
    global $database, $Strings;
    $where = [];

    if (!is_null($register) && $database->has('registers', ['registerid' => $register])) {
        $where["registers.registerid"] = $register;
    }

    if ((bool) strtotime($start) == TRUE) {
        $where["OR #open"] = [
            "open[>=]" => date("Y-m-d", strtotime($start)),
            "close[>=]" => date("Y-m-d", strtotime($start))
        ];
    }
    if ((bool) strtotime($end) == TRUE) {
        // Make the date be the end of the day, not the start
        $where["close[<=]"] = date("Y-m-d", strtotime($end)) . " 23:59:59";
    }

    if (count($where) > 1) {
        $where = ["AND" => $where];
    }
    $cash = $database->select(
            "cash_drawer", [
        '[>]registers' => ['cash_drawer.registerid' => 'registerid'],
        '[>]transactions' => ['cash_drawer.cashid' => 'cashid'],
        '[>]payments' => ['transactions.txid' => 'txid'],
        '[>]payment_types' => ['payments.type' => 'typeid']
            ], [
        "cash_drawer.cashid",
        "registers.registername",
        "cash_drawer.registerid",
        "open",
        "close",
        "payments.type",
        "payments.amount",
        "payment_types.typename"
            ], $where
    );

    $report = new Report($Strings->get("cashflow", false));
    $report->setHeader([$Strings->get("register", false), $Strings->get("open", false), $Strings->get("close", false), $Strings->get("cash", false), $Strings->get("card", false), $Strings->get("check", false), $Strings->get("crypto", false), $Strings->get("gift card", false), $Strings->get("free", false)]);

    $registers = [];

    foreach ($cash as $c) {
        $registers[$c['registerid']]['name'] = $c['registername'];
        $registers[$c['registerid']]['id'] = $c['registerid'];
        $registers[$c['registerid']]['open'] = date(DATETIME_FORMAT, strtotime($c['open']));
        if (is_null($c['close'])) {
            $registers[$c['registerid']]['close'] = date(DATETIME_FORMAT);
        } else {
            $registers[$c['registerid']]['close'] = date(DATETIME_FORMAT, strtotime($c['close']));
        }
        if (!isset($registers[$c['registerid']][$c['typename']])) {
            $registers[$c['registerid']][$c['typename']] = 0.0;
        }
        $registers[$c['registerid']][$c['typename']] += $c['amount'];
    }

    foreach ($registers as $r) {
        $types = $database->select('payment_types', 'typename');
        foreach ($types as $t) {
            if (!isset($r[$t])) {
                $r[$t] = 0.0;
            }
        }
        $report->addDataRow([
            $r['name'],
            $r['open'],
            $r['close'],
            $r['cash'] . "",
            $r['card'] . "",
            $r['check'] . "",
            $r['crypto'] . "",
            $r['giftcard'] . "",
            $r['free'] . ""
        ]);
    }

    return $report;
}

function getReport(string $type, $register = null, $start = null, $end = null): Report {
    switch ($type) {
        case "cashflow":
            return getCashFlowReport($register, $start, $end);
        default:
            return new Report("error", ["ERROR"], ["Invalid report type."]);
    }
}

function generateReport($type, $format, $register = null, $start = null, $end = null) {
    $report = getReport($type, $register, $start, $end);
    $report->output($format);
}