<?php

declare(strict_types=1);

require_once __DIR__.'/../vendor/autoload.php';

use Doctrine\DBAL\DriverManager;

$conn = DriverManager::getConnection([
    'driver' => 'pdo_pgsql',
    'host' => 'localhost',
    'port' => 5432,
    'dbname' => 'inventory',
    'user' => 'ferme_user',
    'password' => 'fermerecette',
]);

echo "=== CUSTOM FIELDS HEALTH CHECK ===\n\n";

// 1. Orphaned CFs (should be 0)
$orphanedCfs = $conn->fetchOne('SELECT COUNT(*) FROM custom_fields WHERE typecomposantid IS NULL AND typepieceid IS NULL AND typeproductid IS NULL');
echo sprintf("1. Orphaned CF definitions: %d %s\n", $orphanedCfs, 0 == $orphanedCfs ? '[OK]' : '[PROBLEM]');

// 2. Orphaned CFValues (pointing to orphaned CFs)
$orphanedCfvs = $conn->fetchOne('
    SELECT COUNT(*) FROM custom_field_values cfv
    JOIN custom_fields cf ON cf.id = cfv.customfieldid
    WHERE cf.typecomposantid IS NULL AND cf.typepieceid IS NULL AND cf.typeproductid IS NULL
');
echo sprintf("2. Orphaned CF values: %d %s\n", $orphanedCfvs, 0 == $orphanedCfvs ? '[OK]' : '[PROBLEM]');

// 3. Duplicate CFValues (same entity + same field name)
$duplicatePieces = $conn->fetchOne("
    SELECT COUNT(*) FROM (
        SELECT cfv.pieceid, cf.name, COUNT(*) as cnt
        FROM custom_field_values cfv
        JOIN custom_fields cf ON cf.id = cfv.customfieldid
        WHERE cfv.pieceid IS NOT NULL
        GROUP BY cfv.pieceid, cf.name
        HAVING COUNT(*) > 1
    ) t
");
$duplicateComposants = $conn->fetchOne("
    SELECT COUNT(*) FROM (
        SELECT cfv.composantid, cf.name, COUNT(*) as cnt
        FROM custom_field_values cfv
        JOIN custom_fields cf ON cf.id = cfv.customfieldid
        WHERE cfv.composantid IS NOT NULL
        GROUP BY cfv.composantid, cf.name
        HAVING COUNT(*) > 1
    ) t
");
$totalDuplicates = $duplicatePieces + $duplicateComposants;
echo sprintf("3. Duplicate CF values: %d %s\n", $totalDuplicates, 0 == $totalDuplicates ? '[OK]' : '[PROBLEM]');

// 4. Spot check known pieces
echo "\n--- Spot checks ---\n";

$checks = [
    ['Arbre du palier pied E1', 'cl3d978dd4b071daff8fb185f7', 'pieceid', 'diamètre', '50'],
    ['Arbre du palier tête E1', 'cmkr0qjw5004s1eq6pen63x7j', 'pieceid', 'diamètre', '70'],
    ['Cage écureuil pied E1', 'clbe710810fd7ccd09811957b3', 'composantid', 'Diamètre', ''],
];

foreach ($checks as [$name, $id, $fk, $fieldName, $expectedValue]) {
    $row = $conn->fetchAssociative(
        "SELECT cfv.value FROM custom_field_values cfv JOIN custom_fields cf ON cf.id = cfv.customfieldid WHERE cfv.{$fk} = ? AND cf.name = ?",
        [$id, $fieldName]
    );
    $value = $row ? $row['value'] : '(NOT FOUND)';
    $ok = '' === $expectedValue ? ('' !== $value && null !== $value) : ($value === $expectedValue);
    echo sprintf("  %s → %s = '%s' %s\n", $name, $fieldName, $value, $ok ? '[OK]' : '[CHECK]');
}

// 5. Summary of empty vs filled values
echo "\n--- Value fill rates ---\n";
$stats = $conn->fetchAllAssociative("
    SELECT
        CASE WHEN cfv.pieceid IS NOT NULL THEN 'piece'
             WHEN cfv.composantid IS NOT NULL THEN 'composant'
             WHEN cfv.productid IS NOT NULL THEN 'product'
             ELSE 'unknown' END as entity_type,
        COUNT(*) as total,
        COUNT(*) FILTER (WHERE cfv.value != '' AND cfv.value IS NOT NULL) as filled,
        COUNT(*) FILTER (WHERE cfv.value = '' OR cfv.value IS NULL) as empty
    FROM custom_field_values cfv
    GROUP BY entity_type
    ORDER BY entity_type
");
foreach ($stats as $s) {
    $pct = $s['total'] > 0 ? round(100 * $s['filled'] / $s['total']) : 0;
    echo sprintf("  %s: %d/%d filled (%d%%)\n", $s['entity_type'], $s['filled'], $s['total'], $pct);
}

echo "\n=== DONE ===\n";