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<?php
/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4 foldmethod=marker: */

/**
 * Elaborate example for the METAR/TAF-service
 *
 * Well, this is a more elaborate example how to create a neat little page
 * with fetching METAR/TAF data from NOAA and putting it into a design.
 * I'm not too proud of my design-skills, most of the stuff here is taken
 * from the metar-block which can be found within the Horde Framework,
 * courtesy of Rick Emery - creative pixelshoving isn't my domain :-P
 * I've used a Firefox for checking the design, so don't be too
 * disappointed, if the page looks shabby with the IE, not that I care
 * very much anyway ;-)
 * Have fun!
 * 
 * PHP versions 4 and 5
 *
 * <LICENSE>
 * Copyright (c) 2005-2011, Alexander Wirtz
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * o Redistributions of source code must retain the above copyright notice,
 * this list of conditions and the following disclaimer.
 * o Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following disclaimer in the documentation
 * and/or other materials provided with the distribution.
 * o Neither the name of the software nor the names of its contributors
 * may be used to endorse or promote products derived from this software
 * without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 * </LICENSE>
 * 
 * @category Web Services
 * @package Services_Weather
 * @author Alexander Wirtz <eru@php.net>
 * @copyright 2005-2011 Alexander Wirtz
 * @license http://www.opensource.org/licenses/bsd-license.php BSD License
 * @version SVN: $Id$
 * @link http://pear.php.net/package/Services_Weather
 * @filesource
 */

//-------------------------------------------------------------------------
// This is the area, where you can customize the script
//-------------------------------------------------------------------------
$location        = "Bonn, Germany"; // The city we want to fetch the data for.
                                    // Where the search function will look for
                                    // the ICAO database (generated with the
                                    // buildMetarDB.php script)
$dsn             = "sqlite://localhost//usr/local/lib/php/data/Services_Weather/servicesWeatherDB"; 
$sourceMetar     = "http";          // This script will pull the METAR data via http
$sourceTaf       = "http";          //                           TAF
$sourcePathMetar = "";              // Only needed when non-standard access is used
$sourcePathTaf   = "";              //
$cacheType       = "";              // Set a type (file, db, mdb, ...) to
                                    // enable caching.
$cacheOpt        = array();         // Cache needs various options, depending
                                    // on the container-type - please consult
                                    // the Cache manual / sourcecode!
$unitsFormat     = "metric";        // The format the units are displayed in -
                                    // metric, standard or some customization.
$dateFormat      = "j. M Y";        // Set the format the date is displayed in
$timeFormat      = "H:i";           //                    time
//-------------------------------------------------------------------------

// Load the Weather class
require_once "Services/Weather.php";

// Object initialization - error checking is important, because of
// handling exceptions such as missing PEAR modules
$metar = &Services_Weather::service("Metar");
if (Services_Weather::isError($metar)) {
    die("Error: ".$metar->getMessage()."\n");
}

// Set parameters for DB access, needed for location searches
$metar->setMetarDB($dsn);
if (Services_Weather::isError($metar)) {
    echo "Error: ".$metar->getMessage()."\n";
}

// Initialize caching
if (strlen($cacheType)) {
    $status = $metar->setCache($cacheType, $cacheOpt);
    if (Services_Weather::isError($status)) {
        echo "Error: ".$status->getMessage()."\n";
    }
}

// Define the units format, bring the retrieved format into
// something more common...
$metar->setUnitsFormat($unitsFormat);
$units = $metar->getUnitsFormat();
$units["temp"]   = "&deg;".strtoupper($units["temp"]);
$units["wind"]   = "&nbsp;".str_replace("kmh", "km/h", $units["wind"]);
$units["vis"]    = "&nbsp;".$units["vis"];
$units["height"] = "&nbsp;".$units["height"];
$units["pres"]   = "&nbsp;".$units["pres"];
$units["rain"]   = "&nbsp;".$units["rain"];

$metar->setMetarSource($sourceMetar, $sourcePathMetar, $sourceTaf, $sourcePathTaf);

// Set date-/time-format
$metar->setDateTimeFormat($dateFormat, $timeFormat);

// Search for defined location and fetch the first item found.
// Bail out if something bad happens...
$search = $metar->searchLocation($location, true);
if (Services_Weather::isError($search)) {
    die("Error: ".$search->getMessage()."\n");
}

// Retrieve data, store in variables, bail out on error
$fetch = array(
    "location" => "getLocation",
    "weather"  => "getWeather",
    "forecast" => "getForecast"
);
foreach ($fetch as $variable => $function) {
    $$variable = $metar->$function($search);
    if (Services_Weather::isError($$variable)) {
        echo "Error: ".$$variable->getMessage()."\n";
        continue;
    }
}

// Now we output all the data, please don't expect extensive comments here, this is basic
// HTML/CSS stuff. Also this isn't a very fancy design, it's just to show you, what
// the script is able to do (and more ;-))...
?>
<html>
<head>
 <title>Services_Weather::METAR/TAF</title>
 <style type="text/css">
 .normal { font-family: Arial, Helvetica, sans-serif; font-size: 11pt; font-weight: normal; font-style: normal }
 .italic { font-weight: normal; font-style: italic }
 .bold { font-weight: bold; font-style: normal }
 .bolditalic { font-weight: bold; font-style: italic }
 .redbold { font-weight: bold; font-style: normal; color: #ff0000 }
 .bluebold { font-weight: bold; font-style: normal; color: #0000ff }
 .bggrey { background-color: #e9e9e9 }
 .bgkhaki { background-color: #d8d8c0 }
 .reg { font-size: 7pt; vertical-align: super }
 img { vertical-align: middle; border-style: none; border-width: 0px }
 a { font-weight: bold; font-style: italic; color: #993300; text-decoration: none }
 a:visited { font-weight: bold; font-style: italic; color: #993300; text-decoration: none }
 a:hover { font-weight: bold; font-style: italic; color: #cc3300; text-decoration: underline }
 table { border: 0px none black; border-spacing: 0px }
 td { font-family: Arial, Helvetica, sans-serif; font-size: 11pt; font-weight: normal; font-style: normal }
 </style>
</head>
<body class="normal">
<?php
// Debug outputs the raw data fetched by the foreach-loop above, just for checking...
if (isset($_GET["debug"])) {
 echo "<pre>\n";
 var_dump($location, $weather, $forecast);
 echo "</pre>\n";
} 
?>
Weather Forecast created with <a style="font-size: 13pt" href="http://pear.php.net/">PEARs</a> <a style="font-size: 13pt" href="http://pear.php.net/package/Services_Weather/">Services_Weather</a> 
<table style="width: 100%">
<tr>
 <td>
 <table border="0" style="border-top: 2px solid #524b98; border-bottom: 2px solid #e0e3ce; border-left: 2px solid #b8b6c1; border-right: 2px solid #8b87a0; width: 100%">
 <tr class="bgkhaki">
 <td colspan="4" style="border-bottom: 2px solid #abada2"><?=$location["name"]?> (<?=$search?>)</td>
 </tr>
 <tr>
 <td>Sunrise: <img style="width: 28px; height: 13px; vertical-align: baseline" alt="Sunrise" src="images/sunrise.gif"> <?=$location["sunrise"]?></td>
 <td>Sunset: <img style="width: 30px; height: 15px; vertical-align: baseline" alt="Sunset" src="images/sunset.gif"> <?=$location["sunset"]?></td>
 <td style="width: 190px">&nbsp;</td>
 <td style="width: auto">&nbsp;</td>
 </tr>
 <tr style="height: 15px">
 <td nowrap>Temperature: <?=round($weather["temperature"], 1).$units["temp"]?></td>
 <td nowrap>Dew point: <?=round($weather["dewPoint"], 1).$units["temp"]?></td>
 <td nowrap>Felt temperature: <?=round($weather["feltTemperature"], 1).$units["temp"]?></td>
 <td rowspan="4" valign="top">
 Trend: 
<?php
if (isset($weather["trend"]) && sizeof($weather["trend"])) {
 // Output the trends, loop through the arrays,
 // convert the stuff to nice looking design, jadda, jadda...
 foreach ($weather["trend"] as $trend) {
 foreach ($trend as $key => $val) {
 switch ($key) {
 case "type":
 switch ($val) {
 case "NOSIG":
 $string = "No Significant Weather";
 break;
 case "TEMPO":
 $string = "Temporary Weather";
 break;
 case "BECMG":
 $string = "Weather Becoming";
 break;
 }
 $value = "";
 foreach (array("from", "to", "at") as $time) {
 if (isset($trend[$time])) {
 $value .= " ".$time." ".$trend[$time];
 }
 }
 ($value != "") ? $value = trim($value).":":"";
 $string = ''.$string.'';
 $value = ''.$value.'';
 break;
 case "wind":
 $string = "Wind:";
 $value = (strtolower($trend["windDirection"]) == "calm") ? "Calm" : "From the ".$trend["windDirection"]." (".$trend["windDegrees"]."&deg;) at ".round($trend["wind"], 1).$units["wind"];
 if (isset($trend["windVariability"])) {
 $value .= ", variable from ".$trend["windVariability"]["from"]."&deg; to ".$trend["windVariability"]["to"]."&deg;";
 }
 if (isset($trend["windGust"])) {
 $value .= ", with gusts up to ".round($trend["windGust"], 1).$units["wind"];
 }
 break;
 case "visibility":
 $string = "Visibility:";
 $value = strtolower($trend["visQualifier"])." ".round($trend["visibility"], 1).$units["vis"];
 break;
 case "clouds":
 $string = "Clouds:";
 $value = "";
 for ($i = 0; $i < sizeof($val); $i++) {
 $cloud = ucwords($val[$i]["amount"]);
 if (isset($val[$i]["type"])) {
 $cloud .= " ".$val[$i]["type"];
 }
 if (isset($val[$i]["height"])) {
 $cloud .= " at ".$val[$i]["height"].$units["height"];
 }
 $value .= $cloud." ";
 }
 break;
 case "condition":
 $string = "Condition:";
 $value = ucwords($val);
 break;
 case "pressure":
 $string = "Pressure:";
 $value = round($val, 1).$units["pres"];
 break;
 case "from":
 case "to":
 case "at":
 case "windDirection":
 case "windDegrees":
 case "windVariability":
 case "windGust":
 case "visQualifier":
 continue 2;
 default:
 $string = ""; $value = "";
 var_dump($key, $val);
 break;
 }
?>
 <?=$string?> <?=$value?> 
<?php
 }

}
} else {
?>
 none 
<?php
}
?>
 Remarks: 
<?php
if (isset($weather["remark"]) && sizeof($weather["remark"])) {
 // Same for the remarks, even less spectacular...
 foreach($weather["remark"] as $key => $val) {
 switch ($key) {
 case "autostation":
 case "presschg":
 case "nospeci":
 case "sunduration":
 case "maintain":
 $string = "";
 $value = $val;
 break;
 case "seapressure":
 $string = "Pressure at sealevel:";
 $value = round($val, 1).$units["pres"];
 break;
 case "1htemp":
 $string = "Temperature for last hour:";
 $value = round($val, 1).$units["temp"];
 break;
 case "1hdew":
 $string = "Dew Point for last hour:";
 $value = round($val, 1).$units["temp"];
 break;
 case "6hmaxtemp":
 case "6hmintemp":
 if (!isset($weather["remark"]["6hmaxtemp"]) && !isset($weather["remark"]["6hmintemp"])) {
 continue(2);
 }
 $string = "Max/Min Temp for last 6 hours:";
 $value = (isset($weather["remark"]["6hmaxtemp"])) ? round($weather["remark"]["6hmaxtemp"], 1).$units["temp"] : "-";
 $value .= "/";
 $value .= (isset($weather["remark"]["6hmintemp"])) ? round($weather["remark"]["6hmintemp"], 1).$units["temp"] : "-";
 unset($weather["remark"]["6hmaxtemp"]); unset($weather["remark"]["6hmintemp"]);
 break;
 case "24hmaxtemp":
 case "24hmintemp":
 if (!isset($weather["remark"]["24hmaxtemp"]) && !isset($weather["remark"]["24hmintemp"])) {
 continue(2);
 }
 $string = "Max/Min Temp for last 24 hours:";
 $value = (isset($weather["remark"]["24hmaxtemp"])) ? round($weather["remark"]["24hmaxtemp"], 1).$units["temp"] : "-";
 $value .= "/";
 $value .= (isset($weather["remark"]["24hmintemp"])) ? round($weather["remark"]["24hmintemp"], 1).$units["temp"] : "-";
 unset($weather["remark"]["24hmaxtemp"]); unset($weather["remark"]["24hmintemp"]);
 break;
 case "snowdepth":
 $string = "Snow depth:";
 $value = $val.$units["rain"];
 break;
 case "snowequiv":
 $string = "Water equivalent of snow:";
 $value = $val.$units["rain"];
 break;
 case "sensors":
 $string = "";
 $value = implode(" ", $val);
 break;
 default:
 $string = ""; $value = "";
 var_dump($key, $val);
 break;
 }
?>
 <?=$string?> <?=$value?> 
<?php
 }
} else {
?>
 none 
<?php
}
?>
 </td>
 </tr>
 <tr style="height: 15px">
 <td colspan="2" style="width: 310px" nowrap>Pressure: <?=round($weather["pressure"], 1).$units["pres"]?></td>
 <td nowrap>Humidity: <?=round($weather["humidity"], 2)?>%</td>
 </tr>
 <tr style="height: 15px">
 <td colspan="2" nowrap>
 Wind: <?=strtolower($weather["windDirection"]) == "calm" ? "Calm" : "From the ".$weather["windDirection"]." (".$weather["windDegrees"]."&deg;) at ".round($weather["wind"], 1).$units["wind"]?> 
 <?=isset($weather["windVariability"]) ? " variable from ".$weather["windVariability"]["from"]."&deg; to ".$weather["windVariability"]["to"]."&deg;" : ""?> 
 <?=isset($weather["windGust"]) ? " with gusts up to ".round($weather["windGust"], 1).$units["wind"] : ""?> 
 </td>
 <td valign="top" nowrap>Visibility: <?=strtolower($weather["visQualifier"])?> <?=round($weather["visibility"], 1).$units["vis"]?></td>
 </tr>
 <tr>
 <td>Current condition: <?=isset($weather["condition"]) ? ucwords($weather["condition"]) : "No Significant Weather"?></td>
 <td><img style="height: 32px; width: 32px" alt="<?=isset($weather["condition"]) ? ucwords($weather["condition"]) : "No Significant Weather"?>" src="images/32x32/<?=$weather["conditionIcon"]?>.png"></td>
<?php
if (isset($weather["precipitation"]) && sizeof($weather["precipitation"])) {
 // Output a line for each type of precipitation,
 // distinguish between string and numeric values
?>
 Precipitation: 
<?php
 for ($i = 0; $i < sizeof($weather["precipitation"]); $i++) {
 $precip = "last ".$weather["precipitation"][$i]["hours"]."h: ".$weather["precipitation"][$i]["amount"];
 $precip .= (ctype_alpha($weather["precipitation"][$i]["amount"])) ? "" : $units["rain"];
?>
 <?=$precip?> 
<?php
 }
}
?>
 </td>
 <td valign="top">
 Clouds: 
<?php
if (isset($weather["clouds"]) && sizeof($weather["clouds"])) {
 // Yeah, clouds... same as in the trend handling...
 for ($i = 0; $i < sizeof($weather["clouds"]); $i++) {
 $cloud = ucwords($weather["clouds"][$i]["amount"]);
 if (isset($weather["clouds"][$i]["type"])) {
 $cloud .= " ".$weather["clouds"][$i]["type"];
 }
 if (isset($weather["clouds"][$i]["height"])) {
 $cloud .= " at ".$weather["clouds"][$i]["height"].$units["height"];
 }
?>
 <?=$cloud?> 
<?php
 }
} else {
?>
 Clear Below <?=$metar->convertDistance(12000, "ft", $units["height"]).$units["height"]?> 
<?php
}
?>
 </td>
 </tr>
 </table>
 </td>
</tr>
<tr>
 <td>
 <table style="border-top: 2px solid #524b98; border-bottom: 2px solid #e0e3ce; border-left: 2px solid #b8b6c1; border-right: 2px solid #8b87a0; width: 100%">
 <tr class="bgkhaki">
 <td colspan="3" align="center" style="border-bottom: 2px solid #abada2">Forecast (TAF) valid from <?=$forecast["validFrom"]?> to <?=$forecast["validTo"]?></td>
 </tr>
 <tr valign="top">
 <td colspan="3">
 <table style="width: 100%">
 <tr>
 <td align="center" class="bgkhaki" style="height: 15px; border-top: 2px solid #d8d8c0; border-right: 2px solid #8b87a0; border-left: 2px solid #d8d8c0">&nbsp;</td>
 <td align="center" style="width: 18%">Meteorological Conditions</td>
 <td align="center" style="width: 18%" class="bggrey">Wind</td>
 <td align="center" style="width: 18%">Visibility</td>
 <td align="center" style="width: 18%" class="bggrey">Clouds</td>
 <td align="center" style="width: 18%">Condition</td>
 </tr>
<?php
$times = array_keys($forecast["time"]);
$pre = array("wind" => 0, "vis" => 0, "clouds" => 0, "cond" => 0);
// Ok, the forecast is a bit more interesting, as I'm taking a few
// precautions here so that the table isn't filled up to the max.
// o If a value is repeated in the next major timeslot (not when
// significant weather changes are processed), it's not printed
// o Significant weather gets its own rows, with times printed normal
// as in opposition to bold print for major timeslots
// o The while($row)-construct below is for handling the significant
// weather, as I point $row to $row["fmc"] afterwards, where the
// smaller changes are mentioned
for ($i = 0; $i < sizeof($forecast["time"]); $i++) {
 $row = $forecast["time"][$times[$i]];

// Create timestamp
 $start = $times[$i];
 if ($i + 1 < sizeof($forecast["time"])) {
 $end = $times[$i + 1];
 } else {
 $end = substr($forecast["validRaw"], -2).":00";
 $end = ($end == "24:00") ? "00:00" : $end;
 }
 $time = $start." - ".$end;
 $class = ' class="bold"';
 // This is for outputting "Becoming", "Temporary" and such
 $fmc = isset($row["fmc"]) ? $row["fmc"] : false; 
 $fmctype = "";
 $fmccnt = 0;

while ($row) {
?>
 <tr class="bgkhaki">
 <td style="height: 1px; empty-cells: show; border-right: 2px solid #8b87a0; border-left: 2px solid #d8d8c0"></td>
 <td style="height: 1px" colspan="5"></td>
 </tr>
 <tr>
 <td align="center" class="bgkhaki" style="border-right: 2px solid #8b87a0; border-left: 2px solid #d8d8c0" nowrap><span<?=$class?>><?=$time?></td>
 <td align="center"><?=$fmctype?></td>
<?php
 // This loops through the available data and processes it
 // for output, the different methods were already used above
 // (Only difference is the checking for the pre-values.)
 foreach(array("wind", "vis", "clouds", "cond") as $val) {
 switch ($val) {
 case "wind":
 if (!isset($row["windDirection"])) {
 $string = "&nbsp;";
 } else {
 $string = strtolower($row["windDirection"]) == "calm" ? "Calm" : "From the ".$row["windDirection"]." (".$row["windDegrees"]."&deg;) at ".round($row["wind"], 1).$units["wind"];
 if (isset($row["windProb"])) {
 $string .= " (".$row["windProb"]."%&nbsp;Prob.)";
 }
 if ($string === $pre["wind"]) {
 $string = "&nbsp;";
 } else {
 $pre["wind"] = $string;
 }
 }
 $class = ' class="bggrey"';
 break;
 case "vis":
 if (!isset($row["visibility"])) {
 $string = "&nbsp;";
 } else {
 $string = strtolower($row["visQualifier"])." ".round($row["visibility"], 1).$units["vis"];
 if (isset($row["visProb"])) {
 $string .= " (".$row["visProb"]."%&nbsp;Prob.)";
 }
 if ($string === $pre["vis"]) {
 $string = "&nbsp;";
 } else {
 $pre["vis"] = $string;
 }
 }
 $class = '';
 break;
 case "clouds":
 if (!isset($row["clouds"])) {
 $string = "&nbsp;";
 } else { 
 $clouds = "";
 for ($j = 0; $j < sizeof($row["clouds"]); $j++) {
 $cloud = ucwords($row["clouds"][$j]["amount"]);
 if (isset($row["clouds"][$j]["type"])) {
 $cloud .= " ".$row["clouds"][$j]["type"];
 }
 if (isset($row["clouds"][$j]["height"])) {
 $cloud .= " at ".$row["clouds"][$j]["height"].$units["height"];
 }
 if (isset($row["clouds"][$j]["prob"])) {
 $cloud .= " (".$row["clouds"][$j]["prob"]."%&nbsp;Prob.)";
 }
 $clouds .= $cloud." ";
 }
 if ($clouds === $pre["clouds"]) {
 $string = "&nbsp;";
 } else {
 $string = $clouds;
 $pre["clouds"] = $clouds;
 }
 }
 $class = ' class="bggrey"';
 break;
 case "cond":
 if (!isset($row["condition"]) || (isset($prerow) && $prerow["condition"] == $row["condition"])) {
 $string = "&nbsp;";
 } else {
 $string = ucwords($row["condition"]);
 }
 $class = '';
 }
?>
 <td valign="top"<?=$class?>><?=$string?></td>
<?php
 }
?> 
 </tr>
<?php
 // Now check for significant weather changes and move
 // the row accordingly... maybe ugly coding, but this
 // is for showing design, not for fany programming ;-)
 if ($fmc && $fmccnt < sizeof($fmc)) {
 $row = $fmc[$fmccnt];
 $fmccnt++;
 $fmctype = $row["type"];
 // Check if we have a timestamp, don't output if it's
 // the same as the major-timeslot
 if (!isset($row["from"]) || $row["from"]." - ".$row["to"] == $time) {
 $time = "&nbsp;";
 } else {
 $time = $row["from"]." - ".$row["to"];
 }
 switch ($row["type"]) {
 case "PROB":
 $fmctype = "";
 break;
 case "TEMPO":
 $fmctype = "Temporary";
 break;
 case "BECMG":
 $fmctype = "Becoming";
 break;
 }
 if (isset($row["probability"])) {
 $fmctype .= " (".$row["probability"]."%&nbsp;Prob.)";
 }
 } else {
 $row = false;
 }
 }
}
?> 
 <tr>
 <td class="bgkhaki" style="height: 1px; empty-cells: show; border-bottom: 2px solid #d8d8c0; border-left: 2px solid #d8d8c0; border-right: 2px solid #8b87a0"></td>
 <td style="height: 1px" colspan="5"></td>
 </tr>
 </table>
 </td>
 </tr>
 <tr class="bgkhaki">
 	 <td style="width: 93px; border-top: 2px solid #abada2">&nbsp;</td>
 <td style="border-top: 2px solid #abada2">Updated: (<?=substr($weather["update"], -5)?>&nbsp;/&nbsp;<?=substr($forecast["update"], -5)?>)</td>
 <td style="border-top: 2px solid #abada2" align="right">All times UTC</td>
 </tr>
 </table>
 </td>
</tr>
</table>
<a href="javascript:history.back()">back</a>
</body>
</html>