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 $result;
}
function render_external_graph($graph)
{
if (!isset($graph['arg0_resolved'])) {
$q = db()->prepare("SELECT * FROM external_status_types WHERE id=?");
$q->execute(array($graph['arg0']));
$resolved = $q->fetch();
if (!$resolved) {
render_text($graph, "Invalid external status type ID.");
return;
} else {
$graph['arg0_resolved'] = $resolved['job_type'];
}
}
$job_type = $graph['arg0_resolved'];
$data = array();
$data[0] = array(t("Date"), array('title' => t("% success"), 'line_width' => 2, 'color' => default_chart_color(0), 'min' => 0, 'max' => 100));
$last_updated = false;
$days = get_graph_days($graph);
$extra_days = extra_days_necessary($graph);
$sources = array(array('query' => "SELECT * FROM external_status WHERE job_type=:job_type\n AND created_at >= DATE_SUB(NOW(), INTERVAL " . ($days + $extra_days) . " DAY)\n ORDER BY is_recent ASC, created_at DESC", 'key' => 'created_at', 'balance_key' => 'balance'));
foreach ($sources as $source) {
$q = db()->prepare($source['query']);
$q->execute(array('job_type' => $job_type));
while ($ticker = $q->fetch()) {
$data[date('Y-m-d', strtotime($ticker[$source['key']]))] = array('new Date(' . date('Y, n-1, j', strtotime($ticker[$source['key']])) . ')', graph_number_format(100 * (1 - $ticker['job_errors'] / $ticker['job_count'])));
$last_updated = max($last_updated, strtotime($ticker['created_at']));
}
}
// discard early data
$data = discard_early_data($data, $days);
// sort by key, but we only want values
uksort($data, 'cmp_time');
$graph['subheading'] = format_subheading_values($graph, $data, "%");
$graph['last_updated'] = $last_updated;
if (count($data) > 1) {
render_linegraph_date($graph, array_values($data));
} else {
render_text($graph, t("There is not yet any historical data for this external API."));
}
}
