<?php
/*
  Copyright 2010-2011 Grégory Soutadé

  This file is part of KissCount.

  KissCount is free software: you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation, either version 3 of the License, or
  (at your option) any later version.

  KissCount is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with KissCount.  If not, see <http://www.gnu.org/licenses/>.
*/

$BDD_FILE = '/var/nfs/kc.bdd';

try {
    $db = new SQLite3($BDD_FILE, SQLITE3_OPEN_READONLY);
}
catch(Exception $e)
{
    die('Unable to load BDD');
}

function GetUsers()
{
    global $db;

    $res = array();

    $result = $db->query("SELECT name FROM user ORDER BY name");

    while ($row = $result->fetchArray())
        array_push($res, $row['name']);

    return $res;
}

function IsUserValid($user, $password)
{
    global $db;

    $result = $db->query("SELECT id FROM user WHERE name='" . $db->escapeString($user) . "' AND password='" . sha1($db->escapeString($password)) . "'");

    return $result->fetchArray();
}

function ExtractStyle(&$category)
{
    $s = "background-color:" . $category["backcolor"] . ";";
    $s .= "color:" . $category["forecolor"] . ";";

    if ($category["font"] != "")
    {
        $params = explode(";", $category["font"]);

        // size ; xx ; 93 italic ; 92 bold ; face name                                                                                                                  

        $s .= "font-size:" . $params[0] . "px;";
        if ($params[2] == "93")
            $s .= "font-style:italic;";
        if ($params[3] == "92")
            $s .= "font-weight:bold;";
        $s .= "font-family:" . $params[4] . ";";
    }

    $category["style"] = $s;
}

function LoadUser($name)
{
    global $db;

    $user = new User();

    $name = $db->escapeString($name);

    $result = $db->query("SELECT * FROM user WHERE name='$name'");

    if (!($row = $result->fetchArray()))
        return NULL;

    $user->id = $row["id"];
  
    $result = $db->query("SELECT * FROM account WHERE user='$user->id' ORDER BY default_account DESC, name ASC");

    $user->accounts = array();

    while ($row = $result->fetchArray())
        array_push($user->accounts, $row);

    // Shared accounts
    $result = $db->query("SELECT * FROM account WHERE id IN (SELECT account FROM shared_account WHERE user='$user->id') ORDER BY name ASC");

    while ($row = $result->fetchArray())
        array_push($user->accounts, $row);

    $result = $db->query("SELECT * FROM category WHERE user='$user->id' ORDER by name");

    $user->categories = array();

    while ($row = $result->fetchArray())
    {
        ExtractStyle($row);
        array_push($user->categories, $row);
    }

    $result = $db->query("SELECT * FROM preference WHERE user='$user->id' ORDER by name");

    $user->preferences = array();

    $user->preferences["operation_order"] = "ASC";

    while ($row = $result->fetchArray())
        array_push($user->preferences, $row);

    return $user;
}

function LoadCategory(&$user, $id)
{
    $result = $db->query("SELECT * FROM category WHERE id='$id'");

    if ($row = $result->fetchArray())
    {
        ExtractStyle($row);
        array_push($user->categories, $row);

        return $row;
    }

    return "";
}

function GetAccountAmount($id, $month, $year)
{
    global $db;

    $req = "SELECT amount FROM account_amount WHERE account='$id' AND month='$month' AND year='$year'";

    $result = $db->query($req);

    if ($row = $result->fetchArray())
        return $row["amount"];

    return 0;
}

function LoadMonth($user, $month, $year)
{
    global $db;

    if (!isset($user->accounts[0])) return;

    $req = "SELECT * FROM operation WHERE (account IN('" . $user->accounts[0]["id"] ;
    foreach($user->accounts as $i => $account)
    {
        $req .= "', '" . $account["id"];
    }

    $req .= "')";
    $req .= " OR user='$user->id')";
    $req .= " AND year='$year' AND month='$month'";
    $req .= " ORDER BY fix_cost DESC, year, month ASC, day ";
    $req .= $user->preferences["operation_order"];

    return $db->query($req);
}

function MetaPositiveAmount($id)
{
    global $db;

    $req = "SELECT SUM(amount) as amount FROM operation WHERE amount > 0 AND parent='$id'";

    $result = $db->query($req);

    if ($row = $result->fetchArray())
        return $row["amount"];
    else
        return 0.0;
}

function GetAllOperations($user, &$last_year, &$last_month)
{
    $res;
    global $db;

    if (!isset($user->accounts[0])) return $res;

    $req = "SELECT DISTINCT year FROM account_amount WHERE account IN('" . $user->accounts[0]["id"] ;
    foreach($user->accounts as $i => $account)
    {
        $req .= "', '" . $account["id"];
    }
    $req .= "')"; 

    $req2 = "SELECT DISTINCT year FROM operation WHERE account IN('" .$user->accounts[0]["id"] ;
    foreach($user->accounts as $i => $account)
    {
        $req2 .= "', '" . $account["id"];
    }
    $req2 .= "')"; 
    $req2 .= " OR user='" . $user->id . "'"; 
    $req2 .= " ORDER BY year ASC";

    $reqUnion = $req . " UNION " . $req2;

    $result = $db->query($reqUnion);

    while ($row = $result->fetchArray())
    {
        $last_year = $year = $row["year"];
        
        $req = "SELECT DISTINCT month FROM account_amount WHERE account IN('" . $user->accounts[0]["id"] ;
        foreach($user->accounts as $i => $account)
        {
            $req .= "', '" . $account["id"];
        }
        $req .= "')"; 
        $req .= " AND year='" . $year . "'";

        $req2 = "SELECT DISTINCT month FROM operation WHERE (account IN('" . $user->accounts[0]["id"] ;
        foreach($user->accounts as $i => $account)
        {
            $req2 .= "', '" . $account["id"];
        }
        $req2 .= "')"; 
        $req2 .= " OR user='" . $user->id . "')"; 
        $req2 .= " AND year='" . $year . "'";
        $req2 .= " ORDER BY month ASC";

        $reqUnion = $req . " UNION " . $req2;

        $result2 = $db->query($reqUnion);

        while ($row = $result2->fetchArray())
        {
            if (!isset($res[$year])) $res[$year] = array();
            array_push($res[$year], $row["month"]);
            $last_month = $row["month"];
        }
    }
    
    return $res;
}
?>