<?php
/**
 * MSIN API ChronoTrack — Phase 2a : lecture MS1, diff, push manuel entries.
 */

define('MSIN_API_CHRONOTRACK_SYNC_BATCH_SIZE', 25);

function fxChronotrackApiSyncIso2ToIso3($strIso2) {
    static $tabMap = null;
    if ($tabMap === null) {
        $tabMap = array(
            'CA' => 'CAN', 'US' => 'USA', 'MX' => 'MEX', 'FR' => 'FRA', 'GB' => 'GBR', 'UK' => 'GBR',
            'DE' => 'DEU', 'ES' => 'ESP', 'IT' => 'ITA', 'BE' => 'BEL', 'CH' => 'CHE', 'AU' => 'AUS',
            'JP' => 'JPN', 'CN' => 'CHN', 'BR' => 'BRA', 'NL' => 'NLD', 'SE' => 'SWE', 'NO' => 'NOR',
            'DK' => 'DNK', 'FI' => 'FIN', 'IE' => 'IRL', 'PT' => 'PRT', 'PL' => 'POL', 'AT' => 'AUT',
            'NZ' => 'NZL', 'IN' => 'IND', 'KR' => 'KOR', 'AD' => 'AND', 'AE' => 'ARE', 'AF' => 'AFG',
        );
    }
    $strIso2 = strtoupper(trim((string)$strIso2));
    if ($strIso2 === '') {
        return '';
    }
    if (strlen($strIso2) === 3) {
        return $strIso2;
    }
    return isset($tabMap[$strIso2]) ? $tabMap[$strIso2] : '';
}

function fxChronotrackApiSyncMapEntryStatus($strMs1Status, $blnCancelled = false) {
    if ($blnCancelled) {
        return 'WITHDRAWN';
    }
    $strMs1Status = strtoupper(trim((string)$strMs1Status));
    switch ($strMs1Status) {
        case 'DQ':
            return 'DQ';
        case 'DNS':
            return 'DNS';
        case 'NP':
            return 'NP';
        case 'ABANDON':
            return 'DNF';
        case 'UNRANKED':
            return 'UNRANKED';
        case 'DEFERRED':
            return 'DEFERRED';
        case 'CONF':
        default:
            return 'CONF';
    }
}

function fxChronotrackApiSyncNormalizeSex($strSexe) {
    $strSexe = strtolower(trim((string)$strSexe));
    if ($strSexe === 'f' || $strSexe === 'F') {
        return 'F';
    }
    if ($strSexe === 'h' || $strSexe === 'm' || $strSexe === 'M') {
        return 'M';
    }
    if ($strSexe === '') {
        return 'U';
    }
    return strtoupper(substr($strSexe, 0, 1));
}

function fxChronotrackApiSyncNormalizeBirthdate($strDob) {
    $strDob = trim((string)$strDob);
    if ($strDob === '' || $strDob === '0000-00-00') {
        return '';
    }
    $intTs = strtotime($strDob);
    if ($intTs === false) {
        return '';
    }
    return date('Y-m-d', $intTs);
}

function fxChronotrackApiSyncLog($intEveId, $intParId, $strAction, $strStatus, $strMessage) {
    global $objDatabase;

    $sql = "INSERT INTO api_chronotrack_sync_log SET eve_id = " . intval($intEveId)
        . ", par_id = " . ($intParId > 0 ? intval($intParId) : 'NULL')
        . ", action = '" . $objDatabase->fxEscape(substr(trim($strAction), 0, 32)) . "'"
        . ", status = '" . $objDatabase->fxEscape($strStatus === 'ok' ? 'ok' : 'error') . "'"
        . ", message = '" . $objDatabase->fxEscape(substr(trim($strMessage), 0, 65000)) . "'"
        . ", created_at = '" . fxGetDateTime() . "'";
    $objDatabase->fxQuery($sql);
}

function fxChronotrackApiSyncPaysHasIso3Column() {
    static $blnHas = null;
    if ($blnHas !== null) {
        return $blnHas;
    }
    global $objDatabase;
    $arrRow = $objDatabase->fxGetRow("SHOW COLUMNS FROM inscriptions_pays LIKE 'pay_iso3'");
    $blnHas = ($arrRow !== null);
    return $blnHas;
}

function fxChronotrackApiSyncLoadMs1Participants($intEveId) {
    global $objDatabase;

    $intEveId = intval($intEveId);
    if ($intEveId <= 0) {
        return array();
    }

    $strCountryCols = " (SELECT pay_iso FROM inscriptions_pays WHERE pay_id = p.pay_id) AS country_iso2";
    if (fxChronotrackApiSyncPaysHasIso3Column()) {
        $strCountryCols = " (SELECT pay_iso3 FROM inscriptions_pays WHERE pay_id = p.pay_id) AS country_iso3,"
            . " (SELECT pay_iso FROM inscriptions_pays WHERE pay_id = p.pay_id) AS country_iso2";
    }

    $sql = "SELECT p.par_id, p.par_id_original, p.epr_id, p.par_prenom, p.par_nom, p.par_sexe,"
        . " p.par_naissance, p.no_bib, p.par_statut_course, p.par_ville, p.par_adresse, p.par_codepostal,"
        . " p.is_cancelled,"
        . " (SELECT pro_iso FROM inscriptions_provinces WHERE pro_id = p.pro_id) AS state_iso,"
        . $strCountryCols
        . " FROM resultats_participants p"
        . " JOIN resultats_epreuves_commandees ec ON p.pec_id = ec.pec_id_original"
        . " WHERE ec.pec_actif = 1 AND ec.is_cancelled = 0 AND p.is_cancelled = 0"
        . " AND p.eve_id = " . $intEveId
        . " ORDER BY p.par_id_original, p.par_id";

    $tabRows = $objDatabase->fxGetResults($sql);
    if (!is_array($tabRows)) {
        return array();
    }

    $tabOut = array();
    for ($i = 1; $i <= count($tabRows); $i++) {
        $tabOut[] = $tabRows[$i];
    }
    return $tabOut;
}

function fxChronotrackApiSyncBuildEntryPayload(array $arrRow, array $arrRaceMap) {
    $intEprId = intval($arrRow['epr_id'] ?? 0);
    $intCtRaceId = intval($arrRaceMap[$intEprId]['ct_race_id'] ?? 0);
    if ($intCtRaceId <= 0) {
        return null;
    }

    $intExternalId = intval($arrRow['par_id_original'] ?? 0);
    if ($intExternalId <= 0) {
        return null;
    }

    $strCountry = strtoupper(trim((string)($arrRow['country_iso3'] ?? '')));
    if ($strCountry === '') {
        $strCountry = fxChronotrackApiSyncIso2ToIso3($arrRow['country_iso2'] ?? '');
    }
    $strState = strtoupper(trim((string)($arrRow['state_iso'] ?? '')));

    $arrEntry = array(
        'external_id'  => (string)$intExternalId,
        'race_id'      => $intCtRaceId,
        'first_name'   => trim((string)($arrRow['par_prenom'] ?? '')),
        'last_name'    => trim((string)($arrRow['par_nom'] ?? '')),
        'sex'          => fxChronotrackApiSyncNormalizeSex($arrRow['par_sexe'] ?? ''),
        'entry_status' => fxChronotrackApiSyncMapEntryStatus(
            $arrRow['par_statut_course'] ?? '',
            intval($arrRow['is_cancelled'] ?? 0) === 1
        ),
    );

    $strDob = fxChronotrackApiSyncNormalizeBirthdate($arrRow['par_naissance'] ?? '');
    if ($strDob !== '') {
        $arrEntry['birthdate'] = $strDob;
    }

    $strBib = trim((string)($arrRow['no_bib'] ?? ''));
    if ($strBib !== '' && $strBib !== '0') {
        $arrEntry['bib'] = $strBib;
    }

    $strStreet = trim((string)($arrRow['par_adresse'] ?? ''));
    if ($strStreet !== '') {
        $arrEntry['street'] = $strStreet;
    }

    $strCity = trim((string)($arrRow['par_ville'] ?? ''));
    if ($strCity !== '') {
        $arrEntry['city'] = $strCity;
    }

    $strPostal = trim((string)($arrRow['par_codepostal'] ?? ''));
    if ($strPostal !== '') {
        $arrEntry['postal_code'] = $strPostal;
    }

    if ($strState !== '') {
        $arrEntry['state_code'] = $strState;
    }

    if ($strCountry !== '') {
        $arrEntry['country_code'] = $strCountry;
    }

    return $arrEntry;
}

function fxChronotrackApiSyncFetchCtEntriesIndexed($intCtEventId) {
    $intCtEventId = intval($intCtEventId);
    $tabIndexed = array();
    $intPage = 1;
    $intPageSize = 100;
    $intMaxPages = 50;

    while ($intPage <= $intMaxPages) {
        $arrApi = fxChronotrackApiOAuthApiGet('event/' . $intCtEventId . '/entry', array(
            'page'      => $intPage,
            'page_size' => $intPageSize,
        ));
        if ($arrApi['state'] !== 'ok') {
            return array(
                'state'   => 'error',
                'message' => $arrApi['message'] ?? 'Erreur lecture entries CT',
                'entries' => $tabIndexed,
            );
        }

        $arrEntities = fxChronotrackApiNormalizeEntityList($arrApi['json'], 'entry');
        if (count($arrEntities) === 0) {
            break;
        }

        foreach ($arrEntities as $arrEntity) {
            if (!is_array($arrEntity)) {
                continue;
            }
            $strExt = fxChronotrackApiEntityExternalId($arrEntity);
            if ($strExt === '') {
                continue;
            }
            $tabIndexed[$strExt] = $arrEntity;
        }

        if (count($arrEntities) < $intPageSize) {
            break;
        }
        $intPage++;
    }

    return array(
        'state'   => 'ok',
        'message' => '',
        'entries' => $tabIndexed,
    );
}

function fxChronotrackApiSyncBuildPreview($intEveId) {
    $arrConfig = fxChronotrackApiConfigGet($intEveId);
    if ($arrConfig === null) {
        return array('state' => 'error', 'message' => 'Événement non lié à ChronoTrack');
    }

    if (!fxChronotrackApiSettingsConfigured()) {
        return array('state' => 'error', 'message' => fxChronotrackApiSettingsErrorMessage());
    }

    $intCtEventId = intval($arrConfig['ct_event_id']);
    $arrRaceMap = fxChronotrackApiRaceMapGetForEvent($intEveId);
    $tabParticipants = fxChronotrackApiSyncLoadMs1Participants($intEveId);

    $intMs1Total = count($tabParticipants);
    $intEligible = 0;
    $intSkippedNoRace = 0;
    $intSkippedNoExternal = 0;

    $tabEligibleKeys = array();
    foreach ($tabParticipants as $arrRow) {
        $arrPayload = fxChronotrackApiSyncBuildEntryPayload($arrRow, $arrRaceMap);
        if ($arrPayload === null) {
            if (intval($arrRow['par_id_original'] ?? 0) <= 0) {
                $intSkippedNoExternal++;
            } else {
                $intSkippedNoRace++;
            }
            continue;
        }
        $intEligible++;
        $tabEligibleKeys[$arrPayload['external_id']] = true;
    }

    $arrCtFetch = fxChronotrackApiSyncFetchCtEntriesIndexed($intCtEventId);
    if ($arrCtFetch['state'] !== 'ok') {
        return array(
            'state'   => 'error',
            'message' => $arrCtFetch['message'],
        );
    }

    $tabCtEntries = $arrCtFetch['entries'];
    $intCtTotal = count($tabCtEntries);
    $intAlreadyInCt = 0;
    $intToCreate = 0;

    foreach ($tabEligibleKeys as $strExt => $blnTrue) {
        if (isset($tabCtEntries[$strExt])) {
            $intAlreadyInCt++;
        } else {
            $intToCreate++;
        }
    }

    return array(
        'state'              => 'ok',
        'ct_event_id'        => $intCtEventId,
        'ms1_total'          => $intMs1Total,
        'eligible'           => $intEligible,
        'skipped_no_race'    => $intSkippedNoRace,
        'skipped_no_external'=> $intSkippedNoExternal,
        'ct_total'           => $intCtTotal,
        'already_in_ct'      => $intAlreadyInCt,
        'to_create'          => $intToCreate,
        'to_push'            => $intEligible,
    );
}

function fxChronotrackApiSyncPushEvent($intEveId) {
    $arrPreview = fxChronotrackApiSyncBuildPreview($intEveId);
    if ($arrPreview['state'] !== 'ok') {
        return $arrPreview;
    }

    $intCtEventId = intval($arrPreview['ct_event_id']);
    $arrRaceMap = fxChronotrackApiRaceMapGetForEvent($intEveId);
    $tabParticipants = fxChronotrackApiSyncLoadMs1Participants($intEveId);

    $tabBatch = array();
    $tabMeta = array();
    $intSkipped = 0;

    foreach ($tabParticipants as $arrRow) {
        $arrPayload = fxChronotrackApiSyncBuildEntryPayload($arrRow, $arrRaceMap);
        if ($arrPayload === null) {
            $intSkipped++;
            continue;
        }
        $tabBatch[] = $arrPayload;
        $tabMeta[] = array(
            'par_id'      => intval($arrRow['par_id']),
            'external_id' => $arrPayload['external_id'],
        );
    }

    if (count($tabBatch) === 0) {
        return array(
            'state'   => 'error',
            'message' => 'Aucun participant éligible (vérifiez le mapping des épreuves).',
        );
    }

    $intOk = 0;
    $intErr = 0;
    $tabErrors = array();
    $intBatchSize = MSIN_API_CHRONOTRACK_SYNC_BATCH_SIZE;
    $intTotal = count($tabBatch);

    for ($intOffset = 0; $intOffset < $intTotal; $intOffset += $intBatchSize) {
        $tabSlice = array_slice($tabBatch, $intOffset, $intBatchSize);
        $tabSliceMeta = array_slice($tabMeta, $intOffset, $intBatchSize);

        $arrPost = fxChronotrackApiOAuthApiPost(
            'event/' . $intCtEventId . '/entry',
            array('event_entry' => $tabSlice)
        );

        if ($arrPost['state'] === 'ok') {
            $intOk += count($tabSlice);
            foreach ($tabSliceMeta as $arrM) {
                fxChronotrackApiSyncLog(
                    $intEveId,
                    $arrM['par_id'],
                    'push_entry',
                    'ok',
                    'external_id=' . $arrM['external_id']
                );
            }
            continue;
        }

        $strErrMsg = $arrPost['message'] ?? 'Erreur POST entry';
        $intErr += count($tabSlice);
        $tabErrors[] = $strErrMsg;
        foreach ($tabSliceMeta as $arrM) {
            fxChronotrackApiSyncLog(
                $intEveId,
                $arrM['par_id'],
                'push_entry',
                'error',
                'external_id=' . $arrM['external_id'] . ' — ' . $strErrMsg
            );
        }
    }

    $strState = ($intErr === 0) ? 'ok' : (($intOk > 0) ? 'partial' : 'error');

    return array(
        'state'        => $strState,
        'message'      => ($intErr === 0)
            ? ($intOk . ' participant(s) envoyé(s) vers ChronoTrack.')
            : ($intOk . ' OK, ' . $intErr . ' erreur(s).'),
        'pushed_ok'    => $intOk,
        'pushed_error' => $intErr,
        'skipped'      => $intSkipped,
        'errors'       => array_slice($tabErrors, 0, 5),
        'preview'      => $arrPreview,
    );
}