<?php
/**
 * 硬碎片转换为主表接口  POST /api/fragment/hard_convert.php
 * 入参：id（硬碎片ID，必填）/ target_type（company|person|product|need，必填）/
 *       补全字段：company_name, person_name, contact_phone, contact_email, target_product_category,
 *       description, industry, need_category, application_scenario, contact_person
 * 逻辑：按目标类型写入主表（product/need 缺公司时自动建公司）→ 标记碎片已转换（converted_type/id, processed_at）
 */
require_once __DIR__ . '/../common/db.php';
require_once __DIR__ . '/../common/response.php';
require_once __DIR__ . '/../common/auth.php';
require_once __DIR__ . '/../common/logger.php';
require_once __DIR__ . '/../common/completeness.php';
require_once __DIR__ . '/../common/duplicate_check.php';

checkAjax();
checkPermission('preliminary');

$id = (int)($_POST['id'] ?? 0);
$targetType = trim($_POST['target_type'] ?? '');
if ($id <= 0 || !in_array($targetType, ['company', 'person', 'product', 'need'], true)) {
    Response::error('参数错误', 400);
}

$pdo = DB::getInstance()->getPdo();

$stmt = $pdo->prepare("SELECT * FROM preliminary_data WHERE id = ? AND is_active = 1");
$stmt->execute([$id]);
$frag = $stmt->fetch();
if (!$frag) {
    Response::error('碎片不存在');
}
if (in_array($frag['status'], ['已转换', '已废弃'], true)) {
    Response::error('该碎片已处理（' . $frag['status'] . '）');
}

$companyName = trim($_POST['company_name'] ?? ($frag['company_name'] ?? ''));
$personName  = trim($_POST['person_name'] ?? ($frag['person_name'] ?? ''));
$phone       = trim($_POST['contact_phone'] ?? ($frag['contact_phone'] ?? ''));
$email       = trim($_POST['contact_email'] ?? ($frag['contact_email'] ?? ''));
$category    = trim($_POST['target_product_category'] ?? ($frag['target_product_category'] ?? ''));
$description = trim($_POST['description'] ?? ($frag['description'] ?? ''));
$industry    = trim($_POST['industry'] ?? '');
$sourceChannel = $frag['source_channel'] ?? null;

$convertedId = 0;

// 唯一性校验：按目标类型，收集全部重复
$dups = [];
if ($targetType === 'company' && $companyName !== '') {
    $dup = findDuplicate($pdo, 'company_name', $companyName);
    if ($dup) $dups[] = $dup;
}
if (in_array($targetType, ['person', 'company'], true)) {
    $dups = array_merge($dups, checkSingleAccountDuplicate($pdo, $phone !== '' ? 'phone' : '', $phone, ''));
    $dups = array_merge($dups, checkSingleAccountDuplicate($pdo, $email !== '' ? 'email' : '', $email, ''));
}
if (!empty($dups)) Response::duplicates($dups);

/** 创建 social_accounts（phone/email，常用） */
$saveContacts = function ($ownerType, $ownerId) use ($pdo, $phone, $email) {
    if ($phone !== '') {
        $pdo->prepare(
            "INSERT INTO social_accounts (owner_type, owner_id, platform, account_id, is_primary, is_defult)
             VALUES (?, ?, 'phone', ?, 1, 1)"
        )->execute([$ownerType, $ownerId, $phone]);
    }
    if ($email !== '') {
        $pdo->prepare(
            "INSERT INTO social_accounts (owner_type, owner_id, platform, account_id, is_primary, is_defult)
             VALUES (?, ?, 'email', ?, 1, 1)"
        )->execute([$ownerType, $ownerId, $email]);
    }
};

/** 按名称找公司，找不到则自动创建 */
$resolveCompany = function () use ($pdo, $companyName, $sourceChannel, $industry) {
    $stmt = $pdo->prepare("SELECT id FROM companies WHERE display_name = ? AND is_active = 1 LIMIT 1");
    $stmt->execute([$companyName]);
    $cid = (int)$stmt->fetchColumn();
    if ($cid > 0) {
        return $cid;
    }
    $pdo->prepare(
        "INSERT INTO companies (display_name, name_zh, industry, source_channel) VALUES (?, ?, ?, ?)"
    )->execute([$companyName, $companyName, $industry !== '' ? $industry : null, $sourceChannel]);
    return (int)$pdo->lastInsertId();
};

switch ($targetType) {
    case 'company':
        if ($companyName === '') {
            Response::error('公司名称为必填项', 400);
        }
        $pdo->prepare(
            "INSERT INTO companies (display_name, name_zh, industry, business_scope, source_channel, source_detail)
             VALUES (?, ?, ?, ?, ?, ?)"
        )->execute([
            $companyName, $companyName,
            $industry !== '' ? $industry : null,
            $description !== '' ? $description : null,
            $sourceChannel,
            $frag['description'] ?? null,
        ]);
        $convertedId = (int)$pdo->lastInsertId();
        $saveContacts('company', $convertedId);
        updateIncomplete($pdo, 'companies', $convertedId);
        updateAccountsIncomplete($pdo, 'company', $convertedId);
        break;

    case 'person':
        if ($personName === '') {
            Response::error('联系人为必填项', 400);
        }
        $unionId = 'P' . date('YmdHis') . substr(uniqid(), -6);
        $pdo->prepare(
            "INSERT INTO persons (union_id, full_name, source_channel, source_detail) VALUES (?, ?, ?, ?)"
        )->execute([$unionId, $personName, $sourceChannel, $frag['description'] ?? null]);
        $convertedId = (int)$pdo->lastInsertId();
        $saveContacts('person', $convertedId);
        updateIncomplete($pdo, 'persons', $convertedId);
        updateAccountsIncomplete($pdo, 'person', $convertedId);
        break;

    case 'product':
        if ($companyName === '') {
            Response::error('公司名称为必填项', 400);
        }
        if ($category === '') {
            Response::error('产品品类为必填项', 400);
        }
        $companyId = $resolveCompany();
        $pdo->prepare(
            "INSERT INTO company_products (company_id, category_name, category_description)
             VALUES (?, ?, ?)"
        )->execute([$companyId, $category, $description !== '' ? $description : null]);
        $convertedId = (int)$pdo->lastInsertId();
        updateIncomplete($pdo, 'companies', $companyId);
        break;

    case 'need':
        if ($companyName === '') {
            Response::error('公司名称为必填项', 400);
        }
        $companyId = $resolveCompany();
        $contactPerson = trim($_POST['contact_person'] ?? ($frag['person_name'] ?? ''));
        $needCategory  = trim($_POST['need_category'] ?? '');
        $scenario      = trim($_POST['application_scenario'] ?? '');
        $pdo->prepare(
            "INSERT INTO company_needs (company_id, contact_person, need_category, target_product_category, application_scenario, description)
             VALUES (?, ?, ?, ?, ?, ?)"
        )->execute([
            $companyId,
            $contactPerson !== '' ? $contactPerson : null,
            $needCategory !== '' ? $needCategory : null,
            $category !== '' ? $category : null,
            $scenario !== '' ? $scenario : null,
            $description !== '' ? $description : null,
        ]);
        $convertedId = (int)$pdo->lastInsertId();
        updateIncomplete($pdo, 'companies', $companyId);
        break;
}

// 标记碎片已转换
$pdo->prepare(
    "UPDATE preliminary_data SET status = '已转换', converted_type = ?, converted_id = ?, processed_at = NOW() WHERE id = ?"
)->execute([$targetType, $convertedId, $id]);

logCurrent('convert', 'fragment', 'preliminary_data', $id, [
    'target_type' => $targetType,
    'converted_id' => $convertedId,
    'fields' => ['company_name' => $companyName, 'person_name' => $personName, 'phone' => $phone, 'email' => $email],
]);

Response::success(['converted_type' => $targetType, 'converted_id' => $convertedId], '转换成功');