function api_v1_graphs($graph)
{
$start_time = microtime(true);
$result = array();
/**
* Graph rendering goes like this:
* 0. check graph rendering permissions
* 1. get raw graph data (from a {@link GraphRenderer} through {@link construct_graph_renderer()})
* 2. apply deltas as necessary
* 3. add technicals as necessary
* 4. strip dates outside of the requested ?days parameter (e.g. from extra_days)
* 5. construct heading and links
* 6. construct subheading and revise last_updated
* 7. return data
* that is, deltas and technicals are done on the server-side; not the client-side.
*/
$renderer = construct_graph_renderer($graph['graph_type'], $graph['arg0'], $graph['arg0_resolved']);
// 0. check graph rendering permissions
if ($renderer->requiresUser()) {
if (!isset($graph['user_id']) || !$graph['user_id']) {
throw new GraphException("No user specified for authenticated graph");
}
if (!isset($graph['user_hash']) || !$graph['user_hash']) {
throw new GraphException("No user hash specified for authenticated graph");
}
$user = get_user($graph['user_id']);
if (!$user) {
throw new GraphException("No such user found");
}
if (!has_expected_user_graph_hash($graph['user_hash'], $user)) {
throw new GraphException("Mismatched user hash for user " . $graph['user_id'] . " with graph type " . $graph['graph_type']);
}
if ($renderer->requiresAdmin()) {
if (!$user['is_admin']) {
throw new GraphException("Graph requires administrator privileges");
}
}
$renderer->setUser($user['id']);
}
if ($renderer->usesDays()) {
// 0.5 limit 'days' parameter as necessary
$get_permitted_days = get_permitted_days();
$has_valid_days = false;
foreach ($get_permitted_days as $key => $days) {
if ($days['days'] == $graph['days']) {
$has_valid_days = true;
}
}
if (!$has_valid_days) {
throw new GraphException("Invalid days '" . $graph['days'] . "' for graph that requires days");
}
}
// 1. get raw graph data
try {
$data = $renderer->getData($graph['days']);
$original_count = count($data['data']);
$result['type'] = $renderer->getChartType();
// 2. apply deltas as necessary
$data['data'] = calculate_graph_deltas($graph, $data['data'], false);
// if there is no data, bail out early
if (count($data['data']) == 0) {
$result['type'] = 'nodata';
} else {
if ($renderer->canHaveTechnicals()) {
// 3. add technicals as necessary
// (only if there is at least one point of data, otherwise calculate_technicals() will throw an error)
$technicals = calculate_technicals($graph, $data['data'], $data['columns'], false);
$data['columns'] = $technicals['headings'];
$data['data'] = $technicals['data'];
}
}
// 4. discard early data
if ($renderer->usesDays()) {
$data['data'] = discard_early_data($data['data'], $graph['days']);
$after_discard_count = count($data['data']);
}
$result['columns'] = $data['columns'];
$result['key'] = $data['key'];
$result['data'] = $data['data'];
// clean up columns
foreach ($result['columns'] as $key => $value) {
$result['columns'][$key]['technical'] = isset($result['columns'][$key]['technical']) && $result['columns'][$key]['technical'] ? true : false;
if ($result['columns'][$key]['technical']) {
if (!isset($result['columns'][$key]['type'])) {
$result['columns'][$key]['type'] = 'number';
}
}
}
} catch (NoDataGraphException_AddAccountsAddresses $e) {
$result['type'] = 'nodata';
$result['text'] = ct("Either you have not specified any accounts or addresses, or these addresses and accounts have not yet been updated by :site_name.");
$result['args'] = array(':site_name' => get_site_config('site_name'));
$result['data'] = array();
$data['last_updated'] = false;
$data['add_accounts_addresses'] = true;
} catch (NoDataGraphException_AddCurrencies $e) {
$result['type'] = 'nodata';
$result['text'] = ct("Either you have not enabled this currency, or your summaries for this currency have not yet been updated by :site_name.");
$result['args'] = array(':site_name' => get_site_config('site_name'));
$result['data'] = array();
$data['last_updated'] = false;
$data['add_more_currencies'] = true;
}
// 5. construct heading and links
$result['heading'] = array('label' => $renderer->getTitle(), 'args' => $renderer->getTitleArgs(), 'url' => $renderer->getURL(), 'title' => $renderer->getLabel());
if (isset($data['h1'])) {
$result['h1'] = $data['h1'];
}
if (isset($data['h2'])) {
$result['h2'] = $data['h2'];
}
if (isset($data['no_header'])) {
$result['noHeader'] = $data['no_header'];
}
// 6. construct subheading and revise last_updated\
if ($result['type'] != 'nodata' && $renderer->hasSubheading()) {
$suffix = "";
if ($graph['delta'] == 'percent') {
$suffix .= '%';
}
if ($renderer->getCustomSubheading() !== false) {
$result['subheading'] = number_format_html($renderer->getCustomSubheading(), 4, $suffix);
} else {
if ($result['type'] == 'piechart') {
// sum up the first row and use that as a total
if (count($data['data']) != 1) {
throw new GraphException("Expected one row of data for a piechart, got " . count($data['data']));
}
$sum = 0;
foreach ($data['data'] as $ignored => $row) {
foreach ($row as $value) {
$sum += $value;
}
}
$result['subheading'] = number_format_html($sum, 4, $suffix);
} else {
$result['subheading'] = format_subheading_values_objects($graph, $data['data'], $data['columns']);
}
}
}
$result['lastUpdated'] = recent_format_html($data['last_updated']);
$result['timestamp'] = iso_date();
$result['classes'] = $renderer->getClasses();
$result['graph_type'] = $graph['graph_type'];
if (is_localhost()) {
$result['_debug'] = $graph;
if (isset($after_discard_count)) {
$result['_debug']['data_discarded'] = $original_count - $after_discard_count;
} else {
$result['_debug']['data_not_discarded'] = true;
}
}
// make sure that all 'number'-typed data is numeric
foreach ($result['data'] as $i => $row) {
foreach ($row as $key => $value) {
$column = $result['columns'][$key];
if ($column['type'] == 'number' || $column['type'] == 'percent') {
$result['data'][$i][$key] = (double) $value;
if (is_localhost()) {
$result['_debug']['number_formatted'] = true;
}
}
}
}
// make sure that all data rows are numeric arrays and not objects
// i.e. reindex everything to be numeric arrays, so they aren't output as JSON objects
foreach ($result['data'] as $i => $row) {
$new_row = array_values($row);
foreach ($row as $key => $value) {
$new_row[$key] = $value;
}
$result['data'][$i] = $new_row;
}
// format any extra text from the result
if (isset($data['add_more_currencies'])) {
$result['extra'] = array('classes' => 'add_accounts', 'href' => url_for('wizard_currencies'), 'label' => ct("Add more currencies"), 'args' => array());
}
if (isset($data['add_accounts_addresses'])) {
$result['extra'] = array('classes' => 'add_accounts', 'href' => url_for('wizard_accounts'), 'label' => ct("Add accounts and addresses"), 'args' => array());
}
// 7. calculate if the graph data may be out of date
if ($renderer->requiresUser() && $renderer->getUser()) {
$user = get_user($renderer->getUser());
if ($user && $renderer->usesSummaries() && (!$user['has_added_account'] || !$user['is_first_report_sent'] || strtotime($user['last_account_change']) > strtotime($user['last_sum_job']))) {
$result['outofdate'] = true;
}
}
$end_time = microtime(true);
$time_diff = ($end_time - $start_time) * 1000;
$result['time'] = (double) number_format_autoprecision($time_diff, 1, '.', '');
$result['hash'] = $graph['hash'];
// 7. return data
return $result;
}
?>
MH/s</td>
</tr>
<?php
$first_tab = false;
}
?>
</tbody>
<tfoot>
<tr>
<th colspan="2"><?php
echo t("Total :currency", array(':currency' => get_currency_name($currency)));
?>
></th>
<th class="number"><?php
echo number_format_html($sum, 4);
?>
MH/s</th>
</tr>
</tfoot>
</table>
</li>
<?php
}
?>
<?php
if (!$balances) {
?>
<li>
public function getData($days)
{
$key_column = array('type' => 'string', 'title' => ct("Currency"));
$columns = array();
$last_updated = false;
$columns[] = array('type' => 'string', 'title' => "", 'heading' => true);
// a matrix table of each currency vs. each currency, and their current
// last_trade and volume on each exchange the user is interested in
$currencies = get_all_currencies();
$summaries = get_all_summary_currencies($this->getUser());
$conversion = get_all_conversion_currencies($this->getUser());
$graph["last_updated"] = 0;
$interested = array();
foreach ($currencies as $c) {
if (isset($summaries[$c])) {
$interested[] = $c;
$columns[] = array('type' => 'string', 'title' => get_currency_abbr($c));
}
}
foreach ($interested as $c1) {
$row = array(get_currency_abbr($c1));
foreach ($interested as $c2) {
// go through each exchange pair
$cell = "";
foreach (get_exchange_pairs() as $exchange => $pairs) {
foreach ($pairs as $pair) {
if ($c1 == $pair[0] && $c2 == $pair[1]) {
$q = db()->prepare("SELECT * FROM ticker_recent WHERE exchange=? AND currency1=? AND currency2=? LIMIT 1");
$q->execute(array($exchange, $c1, $c2));
if ($ticker = $q->fetch()) {
// TODO currency_format should be a graph option
$exchange_short = strlen($exchange) > 8 ? substr($exchange, 0, 7) . "..." : $exchange;
$cell .= "<li><span class=\"rate\">" . number_format_html($ticker['last_trade'], 4) . "</span> " . ($ticker['volume'] == 0 ? "" : "<span class=\"volume\">(" . number_format_html($ticker['volume'], 4) . ")</span>");
$cell .= " <span class=\"exchange\" title=\"" . htmlspecialchars(get_exchange_name($exchange)) . "\">[" . htmlspecialchars($exchange_short) . "]</span>";
$cell .= "</li>\n";
$last_updated = max($last_updated, strtotime($ticker['created_at']));
} else {
$cell .= "<li class=\"warning\">" . t("Could not find rate for :exchange: :pair", array(':exchange' => $exchange, ':pair' => $c1 . "/" . $c2)) . "</li>\n";
}
}
}
}
if ($cell) {
$cell = "<ul class=\"rate_matrix\">" . $cell . "</ul>";
}
$row[] = $cell;
}
$data[] = $row;
}
// now delete any empty rows or columns
// columns
$deleteRows = array();
$deleteColumns = array();
for ($i = 0; $i < count($data) - 1; $i++) {
$empty = true;
for ($j = 1; $j < count($data[$i]); $j++) {
if ($data[$i][$j]) {
$empty = false;
break;
}
}
if ($empty) {
$deleteRows[] = $i;
}
}
for ($i = 1; $i < count($data); $i++) {
$empty = true;
for ($j = 0; $j < count($data[$i]) - 1; $j++) {
if ($data[$j][$i]) {
$empty = false;
break;
}
}
if ($empty) {
$deleteColumns[] = $i;
}
}
$new_data = array();
foreach ($data as $i => $row) {
if (in_array($i, $deleteRows)) {
continue;
}
$x = array();
foreach ($data[$i] as $j => $cell) {
if (in_array($j, $deleteColumns)) {
continue;
}
$x[] = $cell;
}
$new_data[] = $x;
}
foreach ($deleteColumns as $i) {
unset($columns[$i]);
}
$columns = array_values($columns);
return array('key' => $key_column, 'columns' => $columns, 'data' => $new_data, 'last_updated' => $last_updated, 'add_more_currencies' => true);
}
/**
* Same as format_subheading_values(), but sum all values together.
*/
function format_subheading_values_subtotal($graph, $input, $suffix = false)
{
$array = array_slice($input, 1, 1, true);
$array = array_pop($array);
// array_slice returns an array(array(...))
// array[0] is always the date; the remaining values are the formatted data
// remove any data that is a Date heading or a technical value
foreach ($input[0] as $key => $heading) {
if ($key === 0 || is_array($heading) && isset($heading['technical']) && $heading['technical']) {
unset($array[$key]);
}
}
if (!$array) {
return "";
}
$total = 0;
foreach ($array as $key => $value) {
$total += $value;
}
if ($graph['delta'] == 'percent') {
$suffix .= '%';
}
return number_format_html($total, 4, $suffix);
}
