<?php

use Illuminate\Support\Facades\Cache;


function get_value_hints($tableName) {
    // Tables that use value hints
    $weldingRelatedTables = [
        'weld_logs', 'w_p_s', 'prosedure_qualification_records', 
        'naks_certificates', 'naks_welders', 'welding_equipment',
        'fit_up_welding_follow_ups', 'deleted_joints', 'repair_logs',
        'radiographic_tests', 'ultrasonic_tests', 'magnetic_tests', 
        'dye_penetrant_tests', 'hardness_tests', 'p_m_i_tests', 'p_w_h_t_s', 'ferrits',
        'v_t_logs', 'p_t_logs', 'nde_matrices'
    ];
    
    // Columns that show hints
    $hintColumns = [
        'joint_type', 'joint_type_ru', 'type_of_joint', 'type_of_welds',
        'welding_method', 'welding_process', 'process'
    ];
    
    if (!in_array($tableName, $weldingRelatedTables)) {
        return ['hints' => [], 'columns' => []];
    }
    
    $hints = Cache::remember('value_hints_data', 3600, function() {
        $data = [];
        
        // Joint types: short_name_en/ru -> definition_en + definition_ru + title
        $jointTypes = db("joint_types")->whereNotNull("short_name_en")->get();
        foreach($jointTypes as $jt) {
            $hint = [];
            if(!empty($jt->definition_en)) $hint[] = $jt->definition_en;
            if(!empty($jt->definition_ru)) $hint[] = $jt->definition_ru;
            if(!empty($jt->title)) $hint[] = $jt->title;
            
            if(!empty($hint) && !empty($jt->short_name_en)) {
                $data[$jt->short_name_en] = implode(' / ', array_unique($hint));
            }
            if(!empty($jt->short_name_ru) && !empty($hint)) {
                $data[$jt->short_name_ru] = implode(' / ', array_unique($hint));
            }
        }
        
        // Welding methods: iso_short_name/aws_short_name/ru_short_name -> definitions
        $weldingMethods = db("welding_methods")->get();
        foreach($weldingMethods as $wm) {
            $hint = [];
            if(!empty($wm->iso_4063_definition)) $hint[] = $wm->iso_4063_definition;
            if(!empty($wm->russian_definition)) $hint[] = $wm->russian_definition;
            
            if(!empty($hint)) {
                if(!empty($wm->iso_short_name)) $data[$wm->iso_short_name] = implode(' / ', $hint);
                if(!empty($wm->aws_short_name)) $data[$wm->aws_short_name] = implode(' / ', $hint);
                if(!empty($wm->ru_short_name)) $data[$wm->ru_short_name] = implode(' / ', $hint);
                if(!empty($wm->en_welding_number)) $data[$wm->en_welding_number] = implode(' / ', $hint);
            }
        }
        
        return $data;
    });
    
    return ['hints' => $hints, 'columns' => $hintColumns];
}

function clear_value_hints_cache() {
    Cache::forget('value_hints_data');
}