<?php 
function generateIntersectCache($mysqli, $baseDir) {
    global $tableProgramme;
    global $tableGeraete;
    global $tableNotenBezeichnungen;
    global $tableRankLiveConfigs;
    global $tableVar;

    // 1. Fetch all unique IDs you need to loop through
    $all_programms = array_column(db_select($mysqli, $tableProgramme, '`id`', '`aktiv` = ?', [1]) ?? [], 'id');
    $all_geraete   = array_column(db_select($mysqli, $tableGeraete, 'id') ?? [], 'id');

    // 2. Fetch the static DB configs ONCE before starting the massive loop
    $rang_note_id = db_get_variable($mysqli, $tableVar, ['rangNote']);
    
    $json_geraet = db_get_var($mysqli, "SELECT `all_noten_json` FROM $tableRankLiveConfigs WHERE `type_slug` = ?", ["rankLive-geraet"]) ?: '';
    $json_overview = db_get_var($mysqli, "SELECT `all_noten_json` FROM $tableRankLiveConfigs WHERE `type_slug` = ?", ["rankLive-overview"]) ?: '';
    $noten_rank_live_geraet = json_decode($json_geraet, true) ?? [];
    $noten_rank_live_overview = json_decode($json_overview, true) ?? [];
    
    $notenConfig_db = db_select($mysqli, $tableNotenBezeichnungen, '`berechnung_json`, `id`, `type`, `anzahl_laeufe_json`');
    $noten_config = array_column($notenConfig_db, null, 'id');
    $following_config_array = array_column($notenConfig_db, 'berechnung_json', 'id');
    $all_inputs_noten_ids = array_filter(array_column($notenConfig_db, 'type', 'id'), fn($type) => $type === 'input');

    $masterCache = [];

    // 2. Extract ALL possible unique IDs dynamically from your JSON configurations
    $max_runs      = 1; // Default fallback to at least 1 run

    foreach ($noten_config as $n_id => $data) {
        $config = json_decode($data['anzahl_laeufe_json'], true);
        foreach ($config as $geraetKey => $value) {
            if ($geraetKey === 'default') {
                $max_runs = max($max_runs, (int)$value);
                continue;
            }

            if (is_array($value)) {
                foreach ($value as $progKey => $runsCount) {
                    $max_runs = max($max_runs, (int)$runsCount);
                }
            }
        }
    }

    // Ensure we have array lists instead of associative maps
    $all_programms = array_values($all_programms);
    $all_geraete   = array_values($all_geraete);
    
    // Generate standard run sequences (e.g., if max_runs is 2, creates [1, 2])
    $all_runs = range(1, $max_runs);

    $masterCache = [];

    // 3. The Grand Loop
    foreach ($all_programms as $programm_id) {
        
        foreach ($all_geraete as $geraetId) {
            foreach ($all_runs as $initNoteRun) {

                $all_needed_noten = [];

                foreach ($noten_rank_live_geraet as $ind => $s_note) {

                    $n_id = $s_note['n_id'];

                    $anzahl_laeufe_json = $noten_config[$n_id]['anzahl_laeufe_json'] ?? '';

                    $anzahl_laeufe = json_decode($anzahl_laeufe_json, true);

                    $g_id = ($s_note['g_id'] === 'A') ? (int) $geraetId : (int) $s_note['g_id'];

                    $run = (int) $s_note['r'];

                    $runs = $anzahl_laeufe[$g_id][(int) $programm_id] ?? $anzahl_laeufe[$g_id]['all'] ?? $anzahl_laeufe['default'] ?? 0;

                    if (((int) $runs) < $run) {
                        unset($noten_rank_live_geraet[$ind]);
                        continue;
                    }

                    $key = "$n_id|$g_id|$run";
                        
                    if (!isset($all_needed_noten[$key])) {
                        $all_needed_noten[$key] = [
                            "r" => $run,
                            "g_id" => $g_id,
                            "n_id" => $n_id
                        ];
                    }
                }

                foreach ($noten_rank_live_overview as $s_note) {

                    $n_id = $s_note['n_id'];
                    $g_id = $s_note['g_id'];
                    $run = $s_note['r'];

                    $key = "$n_id|$g_id|$run";

                    if (!isset($all_needed_noten[$key])) {
                        $all_needed_noten[$key] = [
                            "r" => $run,
                            "g_id" => $g_id,
                            "n_id" => $n_id
                        ];
                    }
                }

                $all_updating_noten = [];

                foreach ($following_config_array as $this_note_id => $s_note_abhaenige_rechnungen_json) {
                    $s_note_abhaenige_rechnungen = json_decode($s_note_abhaenige_rechnungen_json ?? '') ?? [];
                    foreach ($s_note_abhaenige_rechnungen as $s_rechnung) {
                        $this_note_geraet_id = $s_rechnung[1];

                        if ($this_note_geraet_id !== 'A' && (int) $this_note_geraet_id !== (int) $geraetId) {
                            continue;
                        }

                        $target_note_id = $s_rechnung[0];
                        $target_run_raw = $s_rechnung[2][0] ?? 'A';
                        $target_geraet_id_raw = $s_rechnung[2][1] ?? 'A';

                        $target_run = ($target_run_raw === 'A') ? $initNoteRun : (int) $target_run_raw;
                        $target_geraet_id = ($target_geraet_id_raw === 'A') ? $geraetId : (int) $target_geraet_id_raw;

                        $key = "$target_note_id|$target_geraet_id|$target_run";
                        
                        if (!isset($all_updating_noten[$key])) {
                            $all_updating_noten[$key] = [
                                "r" => $target_run,
                                "g_id" => $target_geraet_id,
                                "n_id" => $target_note_id
                            ];
                        }
                    }
                }

                foreach ($all_inputs_noten_ids as $n_id => $_) {

                    $anzahl_laeufe_json = $noten_config[$n_id]['anzahl_laeufe_json'] ?? '';

                    $anzahl_laeufe = json_decode($anzahl_laeufe_json, true);

                    $runs = $anzahl_laeufe[$geraetId][(int) $programm_id] ?? $anzahl_laeufe[$geraetId]['all'] ?? $anzahl_laeufe['default'] ?? 0;

                    if ($initNoteRun > $runs) {
                        continue;
                    }

                    $key = "$n_id|$geraetId|$initNoteRun";

                    if (!isset($all_updating_noten[$key])) {
                        $all_updating_noten[$key] = [
                            "r" => $initNoteRun,
                            "g_id" => $geraetId,
                            "n_id" => $n_id
                        ];
                    }
                }

                $intersect_noten = array_intersect_key($all_updating_noten, $all_needed_noten);

                $key = "$rang_note_id|0|1";

                if (!isset($all_updating_noten[$key])) {
                    $all_updating_noten[$key] = [
                        "r" => 1,
                        "g_id" => 0,
                        "n_id" => $rang_note_id
                    ];
                }

                $sql_where_array = [];
                $sql_where_values = [];

                $i = 1;

                foreach ($intersect_noten as $s_note) {
                    $sql_where_values[] = $s_note['n_id'];
                    $sql_where_values[] = $s_note['g_id'];
                    $sql_where_values[] = $s_note['r'];

                    $sql_where_array[] = '(`note_bezeichnung_id` = ? AND `geraet_id` = ? AND `run_number` = ?)';
                }

                $sql_where_string = '';

                if (!empty($sql_where_values)) {
                    $sql_where_string = implode(' OR ', $sql_where_array);
                }

                
                if (!empty($intersect_noten)) {
                    $masterCache[$programm_id][$geraetId][$initNoteRun] = ["SQL" => $sql_where_string, "values" => $sql_where_values, "intersect_noten" => $intersect_noten];
                }
            }
        }
    }

    // 4. Save to file
    $fileContent = "<?php\nreturn " . var_export($masterCache, true) . ";";
    file_put_contents($baseDir . '/../scripts/cache/display-dependencies.php', $fileContent);
}