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   1  <?php
   2  
   3  /**
   4   * Echoes an image tag of Google Charts map from sorted array of 'country_code' => 'number of visits' (sort by DESC)
   5   *
   6   * @param array $countries  Array of 'country_code' => 'number of visits'
   7   * @param string $id        Optional HTML element ID
   8   * @return void
   9   */
  10  function yourls_stats_countries_map($countries, $id = null) {
  11  
  12      yourls_do_action( 'pre_stats_countries_map' );
  13  
  14      // if $id is null then assign a random string
  15      if( $id === null )
  16          $id = uniqid ( 'yourls_stats_map_' );
  17  
  18      $data = array_merge( array( 'Country' => 'Hits' ), $countries );
  19      $data = yourls_google_array_to_data_table( $data );
  20  
  21      $options = array(
  22          'backgroundColor' => "white",
  23          'colorAxis'       => "{colors:['A8D0ED','99C4E4','8AB8DB','7BACD2','6BA1C9','5C95C0','4D89B7','3E7DAE','2E72A5','1F669C']}",
  24          'width'           => "550",
  25          'height'          => "340",
  26          'theme'           => 'maximized'
  27      );
  28      $options = yourls_apply_filter( 'stats_countries_map_options', $options );
  29  
  30      $map = yourls_google_viz_code( 'GeoChart', $data, $options, $id );
  31  
  32      echo yourls_apply_filter( 'stats_countries_map', $map, $countries, $options, $id );
  33  }
  34  
  35  
  36  /**
  37   * Echoes an image tag of Google Charts pie from sorted array of 'data' => 'value' (sort by DESC). Optional $limit = (integer) limit list of X first countries, sorted by most visits
  38   *
  39   * @param array $data  Array of 'data' => 'value'
  40   * @param int $limit   Optional limit list of X first countries
  41   * @param $size        Optional size of the image
  42   * @param $id          Optional HTML element ID
  43   * @return void
  44   */
  45  function yourls_stats_pie($data, $limit = 10, $size = '340x220', $id = null) {
  46  
  47      yourls_do_action( 'pre_stats_pie' );
  48  
  49      // if $id is null then assign a random string
  50      if( $id === null )
  51          $id = uniqid ( 'yourls_stats_pie_' );
  52  
  53      // Trim array: $limit first item + the sum of all others
  54      if ( count( $data ) > $limit ) {
  55          $i= 0;
  56          $trim_data = array( 'Others' => 0 );
  57          foreach( $data as $item=>$value ) {
  58              $i++;
  59              if( $i <= $limit ) {
  60                  $trim_data[$item] = $value;
  61              } else {
  62                  $trim_data['Others'] += $value;
  63              }
  64          }
  65          $data = $trim_data;
  66      }
  67  
  68      // Scale items
  69      $_data = yourls_scale_data( $data );
  70  
  71      list($width, $height) = explode( 'x', $size );
  72  
  73      $options = array(
  74          'theme'  => 'maximized',
  75          'width'   => $width,
  76          'height'   => $height,
  77          'colors'    => "['A8D0ED','99C4E4','8AB8DB','7BACD2','6BA1C9','5C95C0','4D89B7','3E7DAE','2E72A5','1F669C']",
  78          'legend'     => 'none',
  79          'chartArea'   => '{top: "5%", height: "90%"}',
  80          'pieSliceText' => 'label',
  81      );
  82      $options = yourls_apply_filter( 'stats_pie_options', $options );
  83  
  84      $script_data = array_merge( array( 'Country' => 'Value' ), $_data );
  85      $script_data = yourls_google_array_to_data_table( $script_data );
  86  
  87      $pie = yourls_google_viz_code( 'PieChart', $script_data, $options, $id );
  88  
  89      echo yourls_apply_filter( 'stats_pie', $pie, $data, $limit, $size, $options, $id );
  90  }
  91  
  92  
  93  /**
  94   * Build a list of all daily values between d1/m1/y1 to d2/m2/y2.
  95   *
  96   * @param array $dates
  97   * @return array[]  Array of arrays of days, months, years
  98   */
  99  function yourls_build_list_of_days($dates) {
 100      /* Say we have an array like:
 101      $dates = array (
 102          2009 => array (
 103              '08' => array (
 104                  29 => 15,
 105                  30 => 5,
 106                  ),
 107              '09' => array (
 108                  '02' => 3,
 109                  '03' => 5,
 110                  '04' => 2,
 111                  '05' => 99,
 112                  ),
 113              ),
 114          )
 115      */
 116  
 117      if( !$dates )
 118          return array();
 119  
 120      // Get first & last years from our range. In our example: 2009 & 2009
 121      $first_year = key( $dates );
 122      $_keys      = array_keys( $dates );
 123      $last_year  = end( $_keys );
 124      reset( $dates );
 125  
 126      // Get first & last months from our range. In our example: 08 & 09
 127      $first_month = key( $dates[ $first_year ] );
 128      $_keys       = array_keys( $dates[ $last_year ] );
 129      $last_month  = end( $_keys );
 130      reset( $dates );
 131  
 132      // Get first & last days from our range. In our example: 29 & 05
 133      $first_day = key( $dates[ $first_year ][ $first_month ] );
 134      $_keys     = array_keys( $dates[ $last_year ][ $last_month ] );
 135      $last_day  = end( $_keys );
 136  
 137      unset( $_keys );
 138  
 139      // Now build a list of all years (2009), month (08 & 09) and days (all from 2009-08-29 to 2009-09-05)
 140      $list_of_years  = array();
 141      $list_of_months = array();
 142      $list_of_days   = array();
 143      for ( $year = $first_year; $year <= $last_year; $year++ ) {
 144          $_year = sprintf( '%04d', $year );
 145          $list_of_years[ $_year ] = $_year;
 146          $current_first_month = ( $year == $first_year ? $first_month : '01' );
 147          $current_last_month  = ( $year == $last_year ? $last_month : '12' );
 148          for ( $month = $current_first_month; $month <= $current_last_month; $month++ ) {
 149              $_month = sprintf( '%02d', $month );
 150              $list_of_months[ $_month ] = $_month;
 151              $current_first_day = ( $year == $first_year && $month == $first_month ? $first_day : '01' );
 152              $current_last_day  = ( $year == $last_year && $month == $last_month ? $last_day : yourls_days_in_month( $month, $year) );
 153              for ( $day = $current_first_day; $day <= $current_last_day; $day++ ) {
 154                  $day = sprintf( '%02d', $day );
 155                  $key = date( 'M d, Y', mktime( 0, 0, 0, $_month, $day, $_year ) );
 156                  $list_of_days[ $key ] = isset( $dates[$_year][$_month][$day] ) ? $dates[$_year][$_month][$day] : 0;
 157              }
 158          }
 159      }
 160  
 161      return array(
 162          'list_of_days'   => $list_of_days,
 163          'list_of_months' => $list_of_months,
 164          'list_of_years'  => $list_of_years,
 165      );
 166  }
 167  
 168  
 169  /**
 170   * Echoes an image tag of Google Charts line graph from array of values (eg 'number of clicks').
 171   *
 172   * $legend1_list & legend2_list are values used for the 2 x-axis labels. $id is an HTML/JS id
 173   *
 174   * @param array $values  Array of values (eg 'number of clicks')
 175   * @param string $id     HTML element id
 176   * @return void
 177   */
 178  function yourls_stats_line($values, $id = null) {
 179  
 180      yourls_do_action( 'pre_stats_line' );
 181  
 182      // if $id is null then assign a random string
 183      if( $id === null )
 184          $id = uniqid ( 'yourls_stats_line_' );
 185  
 186      // If we have only 1 day of data, prepend a fake day with 0 hits for a prettier graph
 187      if ( count( $values ) == 1 )
 188          array_unshift( $values, 0 );
 189  
 190      // Keep only a subset of values to keep graph smooth
 191      $values = yourls_array_granularity( $values, 30 );
 192  
 193      $data = array_merge( array( 'Time' => 'Hits' ), $values );
 194      $data = yourls_google_array_to_data_table( $data );
 195  
 196      $options = array(
 197          "legend"      => "none",
 198          "pointSize"   => "3",
 199          "theme"       => "maximized",
 200          "curveType"   => "function",
 201          "width"       => 430,
 202          "height"      => 220,
 203          "hAxis"       => "{minTextSpacing: 80, maxTextLines: 1, maxAlternation: 1}",
 204          "vAxis"       => "{minValue: 0, format: '#'}",
 205          "colors"      => "['#2a85b3']",
 206      );
 207      $options = yourls_apply_filter( 'stats_line_options', $options );
 208  
 209      $lineChart = yourls_google_viz_code( 'LineChart', $data, $options, $id );
 210  
 211      echo yourls_apply_filter( 'stats_line', $lineChart, $values, $options, $id );
 212  }
 213  
 214  
 215  /**
 216   * Return the number of days in a month. From php.net.
 217   *
 218   * @param int $month
 219   * @param int $year
 220   * @return int
 221   */
 222  function yourls_days_in_month($month, $year) {
 223      // calculate number of days in a month
 224      return $month == 2 ? ( $year % 4 ? 28 : ( $year % 100 ? 29 : ( $year % 400 ? 28 : 29 ) ) ) : ( ( $month - 1 ) % 7 % 2 ? 30 : 31 );
 225  }
 226  
 227  
 228  /**
 229   * Get max value from date array of 'Aug 12, 2012' = '1337'
 230   *
 231   * @param array $list_of_days
 232   * @return array
 233   */
 234  function yourls_stats_get_best_day($list_of_days) {
 235      $max = max( $list_of_days );
 236      foreach( $list_of_days as $k=>$v ) {
 237          if ( $v == $max )
 238              return array( 'day' => $k, 'max' => $max );
 239      }
 240  }
 241  
 242  /**
 243   * Return domain of a URL
 244   *
 245   * @param string $url
 246   * @param bool $include_scheme
 247   * @return string
 248   */
 249  function yourls_get_domain($url, $include_scheme = false) {
 250      $parse = @parse_url( $url ); // Hiding ugly stuff coming from malformed referrer URLs
 251  
 252      // Get host & scheme. Fall back to path if not found.
 253      $host = isset( $parse['host'] ) ? $parse['host'] : '';
 254      $scheme = isset( $parse['scheme'] ) ? $parse['scheme'] : '';
 255      $path = isset( $parse['path'] ) ? $parse['path'] : '';
 256      if( !$host )
 257          $host = $path;
 258  
 259      if ( $include_scheme && $scheme )
 260          $host = $scheme.'://'.$host;
 261  
 262      return $host;
 263  }
 264  
 265  
 266  /**
 267   * Return favicon URL
 268   *
 269   * @param string $url
 270   * @return string
 271   */
 272  function yourls_get_favicon_url($url) {
 273      return yourls_match_current_protocol( '//www.google.com/s2/favicons?domain=' . yourls_get_domain( $url, false ) );
 274  }
 275  
 276  /**
 277   * Scale array of data from 0 to 100 max
 278   *
 279   * @param array $data
 280   * @return array
 281   */
 282  function yourls_scale_data($data ) {
 283      $max = max( $data );
 284      if( $max > 100 ) {
 285          foreach( $data as $k=>$v ) {
 286              $data[$k] = intval( $v / $max * 100 );
 287          }
 288      }
 289      return $data;
 290  }
 291  
 292  
 293  /**
 294   * Tweak granularity of array $array: keep only $grain values.
 295   *
 296   * This make less accurate but less messy graphs when too much values.
 297   * See https://developers.google.com/chart/image/docs/gallery/line_charts?hl=en#data-granularity
 298   *
 299   * @param array $array
 300   * @param int $grain
 301   * @param bool $preserve_max
 302   * @return array
 303   */
 304  function yourls_array_granularity($array, $grain = 100, $preserve_max = true) {
 305      if ( count( $array ) > $grain ) {
 306          $max = max( $array );
 307          $step = intval( count( $array ) / $grain );
 308          $i = 0;
 309          // Loop through each item and unset except every $step (optional preserve the max value)
 310          foreach( $array as $k=>$v ) {
 311              $i++;
 312              if ( $i % $step != 0 ) {
 313                  if ( $preserve_max == false ) {
 314                      unset( $array[$k] );
 315                  } else {
 316                      if ( $v < $max )
 317                          unset( $array[$k] );
 318                  }
 319              }
 320          }
 321      }
 322      return $array;
 323  }
 324  
 325  /**
 326   * Transform data array to data table for Google API
 327   *
 328   * @param array $data
 329   * @return string
 330   */
 331  function yourls_google_array_to_data_table($data){
 332      $str  = "var data = google.visualization.arrayToDataTable([\n";
 333      foreach( $data as $label => $values ){
 334          if( !is_array( $values ) ) {
 335              $values = array( $values );
 336          }
 337          $str .= "\t['$label',";
 338          foreach( $values as $value ){
 339              if( !is_numeric( $value ) && strpos( $value, '[' ) !== 0 && strpos( $value, '{' ) !== 0 ) {
 340                  $value = "'$value'";
 341              }
 342              $str .= "$value";
 343          }
 344          $str .= "],\n";
 345      }
 346      $str = substr( $str, 0, -2 ) . "\n"; // remove the trailing comma/return, reappend the return
 347      $str .= "]);\n"; // wrap it up
 348      return $str;
 349  }
 350  
 351  /**
 352   * Return javascript code that will display the Google Chart
 353   *
 354   * @param string $graph_type
 355   * @param string $data
 356   * @param var $options
 357   * @param string $id
 358   * @return string
 359   */
 360  function yourls_google_viz_code($graph_type, $data, $options, $id ) {
 361      $function_name = 'yourls_graph' . $id;
 362      $code  = "\n<script id=\"$function_name\" type=\"text/javascript\">\n";
 363      $code .= "function $function_name() { \n";
 364  
 365      $code .= "$data\n";
 366  
 367      $code .= "var options = {\n";
 368      foreach( $options as $field => $value ) {
 369          if( !is_numeric( $value ) && strpos( $value, '[' ) !== 0 && strpos( $value, '{' ) !== 0 ) {
 370              $value = "\"$value\"";
 371          }
 372          $code .= "\t'$field': $value,\n";
 373      }
 374      $code  = substr( $code, 0, -2 ) . "\n"; // remove the trailing comma/return, reappend the return
 375      $code .= "\t}\n";
 376  
 377      $code .= "new google.visualization.$graph_type( document.getElementById('visualization_$id') ).draw( data, options );";
 378      $code .= "}\n";
 379      $code .= "google.setOnLoadCallback( $function_name );\n";
 380      $code .= "</script>\n";
 381      $code .= "<div id=\"visualization_$id\"></div>\n";
 382  
 383      return $code;
 384  }