<?php
/**
 * 硬碎片公共逻辑：字段分层 / 完整度计算 / 内容摘要
 * 被 hard_list.php 与 hard_detail.php 共用
 */

/** 硬碎片字段分层（按 source_type） */
const HARD_LAYERS = [
    'company' => ['core' => ['company_name', 'contact_phone'], 'important' => ['contact_email'], 'supplementary' => ['person_name', 'description', 'target_product_category']],
    'person'  => ['core' => ['person_name', 'contact_phone'], 'important' => ['contact_email'], 'supplementary' => ['company_name', 'description', 'target_product_category']],
    'product' => ['core' => ['company_name', 'target_product_category'], 'important' => ['contact_phone', 'contact_email'], 'supplementary' => ['person_name', 'description']],
    'need'    => ['core' => ['company_name', 'target_product_category'], 'important' => ['contact_phone', 'contact_email'], 'supplementary' => ['person_name', 'description']],
    'mixed'   => ['core' => ['company_name', 'person_name'], 'important' => ['contact_phone', 'contact_email'], 'supplementary' => ['description', 'target_product_category']],
];
const HARD_LABELS = [
    'company_name' => '公司名称', 'person_name' => '联系人', 'contact_phone' => '电话',
    'contact_email' => '邮箱', 'target_product_category' => '产品品类', 'description' => '描述',
];

/** 计算硬碎片完整度与缺失层级 */
function hardCompleteness($row)
{
    $layers = HARD_LAYERS[$row['source_type']] ?? HARD_LAYERS['mixed'];
    $missing = ['core' => [], 'important' => [], 'supplementary' => []];
    foreach (['core', 'important', 'supplementary'] as $layer) {
        foreach ($layers[$layer] as $field) {
            if ($row[$field] === null || trim((string)$row[$field]) === '') {
                $missing[$layer][] = $field;
            }
        }
    }
    $score = 100 - count($missing['core']) * 20 - count($missing['important']) * 8 - count($missing['supplementary']) * 2;
    $score = max(0, $score);
    $level = 'complete';
    if (!empty($missing['core'])) {
        $level = 'core';
    } elseif (!empty($missing['important'])) {
        $level = 'important';
    } elseif (!empty($missing['supplementary'])) {
        $level = 'supplementary';
    }
    return ['score' => $score, 'level' => $level, 'missing' => $missing];
}

/** 内容摘要：拼接已有关键信息 */
function hardSummary($row)
{
    $parts = [];
    if (!empty($row['company_name'])) $parts[] = '公司:' . $row['company_name'];
    if (!empty($row['person_name'])) $parts[] = '联系人:' . $row['person_name'];
    if (!empty($row['contact_phone'])) $parts[] = '手机:' . $row['contact_phone'];
    if (!empty($row['contact_email'])) $parts[] = '邮箱:' . $row['contact_email'];
    if (!empty($row['target_product_category'])) $parts[] = '品类:' . $row['target_product_category'];
    if (empty($parts) && !empty($row['description'])) $parts[] = '描述:' . mb_substr($row['description'], 0, 20);
    return implode(' ', $parts);
}