<?php

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

function ImportaDadosDesvio($dbcon) {
    if (!$_SESSION["SSatuDesvio"]) {
        //atualiza a table usada para o cálculo do desvio padrao
        $query = "  insert into pbx_media_atendimento(
                    mat_dac, mat_data, mat_semana, mat_dia_semana,  mat_num_ca, mat_num_opr, mat_med_ca_opr)
                    SELECT D.id,
                           CAST((CALLDATE) AS DATE) AS DATA,
                           0,
                           DATE_PART('DOW',  CAST((CALLDATE) AS DATE)) + 1 AS DIA_SEMANA,
                           COUNT(*) AS CHAMADAS,
                           COUNT(DISTINCT DSTCHANNEL) AS OPR,
                           (COUNT(*) / COUNT(DISTINCT DSTCHANNEL)) AS MEDIA
                      FROM PBX_BILHETES A, PBX_EVENTOS_DACS B, PBX_DACS D
                     WHERE B.UID2 = A.UNIQUEID
                       AND D.NOME = B.FILA
                       AND B.EVENTO = 'ENTERQUEUE'
                       and A.lastapp <> 'Transferred Call'
                       AND CAST(CALLDATE AS DATE) > coalesce((select max(mat_data) from pbx_media_atendimento), '2006-01-01')
                       AND NOT EXISTS(SELECT '' FROM PBX_MEDIA_ATENDIMENTO WHERE mat_data = cast(a.calldate as date))
                    GROUP BY D.id, CAST((CALLDATE) AS DATE)
                      ORDER BY 1, 2 ";

        //  --((CAST(NOW() AS DATE) - (DATE_PART('DOW',  NOW()) + 1)::INT) - (52 * 7))
        // --AND CAST(CALLDATE AS DATE) <= (CAST(NOW() AS DATE) - (DATE_PART('DOW',  NOW()) + 1)::INT)
        $_SESSION["SSatuDesvio"] = pg_query($dbcon, $query);
    }
}

function ImportaDadosDesvioDia($dbcon) {
    if (!$_SESSION["SSatuDesvioDia"]) {
        $query = "insert into pbx_media_atendimento_dia
                    (  mat_dac, mat_data, mat_periodo, mat_hora_ini, mat_hora_fim,
                      mat_dia_semana, mat_num_ca, mat_num_opr, mat_med_ca_opr
                    )
                    SELECT d.id, CAST((CALLDATE) AS DATE) AS DATA, c.periodo, hora_ini, hora_fim,
                           DATE_PART('DOW',  CAST((CALLDATE) AS DATE)) + 1 AS DIA_SEMANA,
                           COUNT(*) AS CHAMADAS,
                           COUNT(DISTINCT DSTCHANNEL) AS OPR,
                           (COUNT(*) / COUNT(DISTINCT DSTCHANNEL)) AS MEDIA
                      FROM pbx_hora_dia c
                     INNER JOIN pbx_bilhetes a on cast(a.calldate as time) >= c.hora_ini and cast(a.calldate as time) < c.hora_fim  and a.lastapp <> 'Transferred Call'
                     INNER JOIN pbx_eventos_dacs b  on b.uid2 = a.uniqueid
                     INNER JOIN pbx_dacs d on d.nome = b.fila
                     WHERE b.evento = 'ENTERQUEUE'
                       AND a.calldate IS NOT NULL
                       AND CAST(CALLDATE AS DATE) > coalesce((select max(mat_data) from PBX_MEDIA_ATENDIMENTO_DIA), '2006-01-01')
                       AND NOT EXISTS(SELECT '' FROM PBX_MEDIA_ATENDIMENTO_DIA WHERE mat_data = cast(a.calldate as date))
                     group by d.id, CAST((CALLDATE) AS DATE), c.periodo, hora_ini, hora_fim
                     order by periodo ";
        $_SESSION["SSatuDesvioDia"] = pg_query($dbcon, $query);
    }
}

function GetDadosMes($dbcon, $dac, $dt) {
    $query = "  select  (DATE_PART('DOW', cast('$dt' as date)) + 1) as diaSemana, ((CAST('$dt' AS DATE) - (52 * 7))) as dataIni,  (cast('$dt' AS DATE) - (DATE_PART('DOW', cast('$dt' as date)) + 1)::INT) as dataFim";
    $result = pg_query($dbcon, $query);
    $row = pg_fetch_row($result);
    $diaSemana = $row[0];
    $dataIni = $row[1];
    $dataFim = $row[2];

    $query = "select mat_data, mat_dia_semana, mat_num_ca from  pbx_media_atendimento where mat_dac = $dac and mat_data <= '$dataFim'  and mat_dia_semana = $diaSemana  order by mat_data desc limit 52";
    $result = pg_query($dbcon, $query);
    return $result;
}

function GetDadosDia($dbcon, $dac, $dt, $periodo) {
    $query = "  select  (DATE_PART('DOW', cast('$dt' as date)) + 1) as diaSemana, ((CAST('$dt' AS DATE) - (52 * 7))) as dataIni,  (cast('$dt' AS DATE) - (DATE_PART('DOW', cast('$dt' as date)) + 1)::INT) as dataFim";
    $result = pg_query($dbcon, $query);
    $row = pg_fetch_row($result);
    $diaSemana = $row[0];
    $dataIni = $row[1];
    $dataFim = $row[2];

    $query = "select mat_data, mat_dia_semana, mat_num_ca from  pbx_media_atendimento_dia where mat_dac = $dac and mat_data <= '$dataFim'  and mat_dia_semana = $diaSemana and mat_periodo = $periodo  order by mat_data desc, mat_periodo desc limit 52 ";
    //print $query; exit;
    $result = pg_query($dbcon, $query);
    return $result;
}

function GetDesvio($result, &$mediaCalc) {

    $media = array();


    $totalSemnas = 0;
    while ($row = pg_fetch_array($result)) {
        $media[$totalSemnas] = $row["mat_num_ca"];
        $totalSemnas++;
    }

    //calcula a media das semanas
    $mediaSemanas = 0;
    for ($i = 0; $i < $totalSemnas; $i++)
        $mediaSemanas += $media[$i];

    $mediaSemanas = $totalSemnas == 0 ? 0 : $mediaSemanas / $totalSemnas;
    $mediaCalc = $mediaSemanas;

    //calcula variancia
    $variancia = 0;
    for ($i = 0; $i < $totalSemnas; $i++) {
        //echo "Media: $media[$i]" . " - " . $mediaSemanas . " = " . ($media[$i] - $mediaSemanas) . " Quadrado = " . Quadrado(($media[$i] - $mediaSemanas)) . " <br>" ;
        $variancia += Quadrado(($media[$i] - $mediaSemanas));
    }

    $variancia = ($totalSemnas - 1) == 0 ? 0 : round($variancia / ($totalSemnas - 1));

    $_SESSION[SS_DESVIO_PADRAO] = round(sqrt($variancia), 4);

    return $_SESSION[SS_DESVIO_PADRAO];
}

function Quadrado($num) {
    return pow($num, 2);
}

?>