<?php
/*
 * Du début au 2020-02-28 données Worldtrading Datas
 * Après 2020-02-28 données AlphaVantage (au 17/12/2020) datas moins sûres à priori
 */
require_once(__DIR__ . '/../wp-load.php');

getFinancialHistoryData();

//Fonction pour récupérer les données historiques de l'action (A utiliser dans un cron toutes les nuits)
function getFinancialHistoryData()
{
    global $wpdb;
    $token = ALPHAVANTAGE_API_KEY;
    //Get historical data for financial data
    $url_historical = 'https://www.alphavantage.co/query?apikey=' . $token . '&function=TIME_SERIES_DAILY&symbol=LOUP.PA&outputsize=full';

    $ch = curl_init();
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
    curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_URL, $url_historical);
    $response = curl_exec($ch);

    if (!curl_errno($ch)) {
        $http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
        if ($http_code !== 200) {
            email(MAIL_ADMIN, '[ERROR] Erreur "API" Alphavantage : getFinancialHistoryData', 'Code HTTP de l\'erreur : ' . $http_code);
            die();
        }
    }else{
        email(MAIL_ADMIN, '[ERROR] Erreur "API" Alphavantage : getFinancialHistoryData', 'Erreur cURL');
        die();
    }

    curl_close($ch);

    $history = json_decode($response, true);

    if (!isset($history['Time Series (Daily)'])) {
        return;
    }

    // Get last Day to byPass
    $lastDate = $wpdb->get_results("SELECT date FROM wp_financialdata_history ORDER BY DATE DESC LIMIT 1");
    if (!empty($lastDate))
        $lastDate = strtotime($lastDate[0]->date);
    else
        $lastDate = strtotime('1995-01-01');

    foreach ($history['Time Series (Daily)'] as $date => $day) {

        $oDate = strtotime($date);

        // Skip current day datas
        if ($oDate === strtotime(date('Y-m-d')))
            continue;

        // Skip already in base datas
        if ($oDate <= $lastDate)
            continue;

        $open = $day['1. open'];
        $high = $day['2. high'];
        $low = $day['3. low'];
        $close = $day['4. close'];
        $volume = $day['5. volume'];

        $wpdb->insert(
            'wp_financialdata_history',
            [
                'date' => $date,
                'open' => $open,
                'high' => $high,
                'low' => $low,
                'close' => $close,
                'volume' => $volume
            ], [
                '%s',
                '%f',
                '%f',
                '%f',
                '%f',
                '%f',
                '%d'
            ]
        );
    }
}

function email($email, $subject, $message)
{
    $headers[] = 'From: Groupe LDC <nepasrepondre@ldc.fr>';
    wp_mail($email, $subject, $message, $headers);
}