<?php
ini_set('display_errors', '0');
require_once __DIR__ . '/../config.php';
session_start_safe();

header('Content-Type: application/json');

if ($_SERVER['REQUEST_METHOD'] !== 'POST') { http_response_code(405); echo json_encode(['error' => 'Method not allowed']); exit; }
if (empty($_SESSION['access_token']))       { echo json_encode(['reauth' => true]); exit; }
if (($_SESSION['token_expires'] ?? 0) <= time()) { echo json_encode(['reauth' => true]); exit; }

$reportCode  = preg_replace('/[^a-zA-Z0-9]/', '', $_POST['report_code'] ?? '');
$fightId     = (int)($_POST['fight_id']    ?? 0);
$startTime   = (float)($_POST['start_time'] ?? 0);
$endTime     = (float)($_POST['end_time']   ?? 0);
$playerName  = trim($_POST['player_name']  ?? '');
$eventType   = trim($_POST['event_type']  ?? '');
$abilityId   = (int)($_POST['ability_id'] ?? 0);
$limit       = max(1, min(500, (int)($_POST['limit'] ?? 20)));
$startOffset = (float)($_POST['start_offset'] ?? 0) * 1000; // s → ms
$endOffset   = isset($_POST['end_offset']) && $_POST['end_offset'] !== ''
               ? (float)$_POST['end_offset'] * 1000
               : null;

$allowedTypes = ['DamageTaken', 'DamageDone', 'Healing', 'Casts', 'Buffs', 'Deaths'];
$dataType     = in_array($_POST['data_type'] ?? '', $allowedTypes) ? $_POST['data_type'] : 'DamageTaken';

if (!$reportCode || !$fightId) { http_response_code(400); echo json_encode(['error' => 'Missing params']); exit; }

$queryStart = $startTime + $startOffset;
$queryEnd   = $endOffset !== null ? $startTime + $endOffset : $endTime;
$queryEnd   = min($queryEnd, $endTime);

$token = $_SESSION['access_token'];

function dbg_gql(string $query): array {
    global $token;
    $ch = curl_init(GRAPHQL_URI);
    curl_setopt_array($ch, [
        CURLOPT_POST           => true,
        CURLOPT_POSTFIELDS     => json_encode(['query' => $query]),
        CURLOPT_RETURNTRANSFER => true,
        CURLOPT_HTTPHEADER     => ['Content-Type: application/json', 'Authorization: Bearer ' . $token],
        CURLOPT_SSL_VERIFYPEER => !DEV_MODE,
    ]);
    $body = curl_exec($ch);
    curl_close($ch);
    return json_decode($body, true) ?? [];
}

// Resolve player name → actor IDs (source + target)
$playerIds = [];
if ($playerName !== '') {
    $pd = dbg_gql(<<<GQL
    {
      reportData {
        report(code: "$reportCode") {
          playerDetails(fightIDs: [$fightId])
        }
      }
    }
    GQL);

    $pdRaw    = $pd['data']['reportData']['report']['playerDetails'] ?? null;
    $pdParsed = is_string($pdRaw) ? json_decode($pdRaw, true) : $pdRaw;
    $pdGroups = $pdParsed['data']['playerDetails'] ?? [];

    foreach (['tanks', 'healers', 'dps'] as $group) {
        foreach ($pdGroups[$group] ?? [] as $p) {
            if (stripos($p['name'], $playerName) !== false) {
                $playerIds[] = (int)$p['id'];
            }
        }
    }
}

// Fetch events
$includeResources = in_array($dataType, ['DamageTaken', 'DamageDone']) ? 'includeResources: true,' : '';

$result = dbg_gql(<<<GQL
{
  reportData {
    report(code: "$reportCode") {
      events(
        fightIDs: [$fightId],
        dataType: $dataType,
        $includeResources
        startTime: $queryStart,
        endTime: $queryEnd
      ) {
        data
      }
    }
  }
}
GQL);

$events = $result['data']['reportData']['report']['events']['data'] ?? [];

// Filter by raw event type, player (source OR target), then apply limit
$filtered = [];
foreach ($events as $ev) {
    if ($eventType !== '' && ($ev['type'] ?? '') !== $eventType) continue;
    if ($abilityId  > 0  && (int)($ev['abilityGameID'] ?? 0) !== $abilityId) continue;
    if (!empty($playerIds)) {
        $srcId = (int)($ev['sourceID'] ?? -1);
        $tgtId = (int)($ev['targetID'] ?? -1);
        if (!in_array($srcId, $playerIds) && !in_array($tgtId, $playerIds)) continue;
    }
    $filtered[] = $ev;
    if (count($filtered) >= $limit) break;
}

echo json_encode([
    'data_type'   => $dataType,
    'event_type'  => $eventType  ?: null,
    'ability_id'  => $abilityId  ?: null,
    'player_name' => $playerName ?: null,
    'player_ids'  => $playerIds ?: null,
    'time_range'  => [
        'from_ms' => (int)$queryStart,
        'to_ms'   => (int)$queryEnd,
    ],
    'total_before_limit' => count($events),
    'count'       => count($filtered),
    'events'      => $filtered,
], JSON_PRETTY_PRINT);