<?php

namespace app\adminapi\logic\doctor;

use app\common\logic\BaseLogic;
use app\common\model\doctor\DoctorNote;
use app\common\service\FileService;

class DoctorNoteLogic extends BaseLogic
{
    /**
     * 按 diagnosis_id + 当天 find-or-create，追加 content / tongue_images / report_files
     */
    public static function addOrAppend(array $params): bool
    {
        try {
            $diagnosisId = (int) $params['diagnosis_id'];
            $doctorId    = (int) ($params['doctor_id'] ?? 0);
            $today       = date('Y-m-d');
            $time        = date('H:i');

            $existing = DoctorNote::where('diagnosis_id', $diagnosisId)
                ->where('note_date', $today)
                ->whereNull('delete_time')
                ->find();

            $newContent = trim($params['content'] ?? '');
            $newImages  = array_map([self::class, 'toRelativePath'], self::parseJsonArray($params['tongue_images'] ?? []));
            $newReports = array_map([self::class, 'toRelativePath'], self::parseJsonArray($params['report_files'] ?? []));

            if ($existing) {
                $data = [];

                if ($newContent !== '') {
                    $prev = trim($existing->content ?? '');
                    $line = "[{$time}] {$newContent}";
                    $data['content'] = $prev !== '' ? ($prev . "\n" . $line) : $line;
                }

                if (!empty($newImages)) {
                    $prev = self::parseJsonArray($existing->tongue_images);
                    $merged = array_values(array_unique(array_merge($prev, $newImages)));
                    $data['tongue_images'] = json_encode($merged, JSON_UNESCAPED_UNICODE);
                }

                if (!empty($newReports)) {
                    $prev = self::parseJsonArray($existing->report_files);
                    $merged = array_values(array_unique(array_merge($prev, $newReports)));
                    $data['report_files'] = json_encode($merged, JSON_UNESCAPED_UNICODE);
                }

                if (!empty($data)) {
                    $existing->save($data);
                }
            } else {
                $content = $newContent !== '' ? "[{$time}] {$newContent}" : '';
                DoctorNote::create([
                    'diagnosis_id'  => $diagnosisId,
                    'doctor_id'     => $doctorId,
                    'note_date'     => $today,
                    'content'       => $content,
                    'tongue_images' => !empty($newImages)
                        ? json_encode($newImages, JSON_UNESCAPED_UNICODE)
                        : null,
                    'report_files'  => !empty($newReports)
                        ? json_encode($newReports, JSON_UNESCAPED_UNICODE)
                        : null,
                ]);
            }

            return true;
        } catch (\Exception $e) {
            self::setError($e->getMessage());
            return false;
        }
    }

    /**
     * 按 diagnosis_id 获取备注列表（note_date DESC）
     */
    public static function getByDiagnosis(int $diagnosisId, int $limit = 30): array
    {
        try {
            if ($diagnosisId <= 0) {
                return [];
            }

            $records = DoctorNote::where('diagnosis_id', $diagnosisId)
                ->whereNull('delete_time')
                ->order('note_date', 'desc')
                ->limit($limit)
                ->select()
                ->toArray();

            foreach ($records as &$record) {
                $record['tongue_images'] = array_map(function ($url) {
                    return empty($url) ? $url : FileService::getFileUrl($url);
                }, self::parseJsonArray($record['tongue_images'] ?? []));
                $record['report_files'] = array_map(function ($url) {
                    return empty($url) ? $url : FileService::getFileUrl($url);
                }, self::parseJsonArray($record['report_files'] ?? []));
            }

            return $records;
        } catch (\Exception $e) {
            self::setError($e->getMessage());
            return [];
        }
    }

    /**
     * 删除备注中的单张图片
     */
    public static function deleteImage(int $noteId, string $imageType, string $imagePath): bool
    {
        try {
            $note = DoctorNote::where('id', $noteId)->whereNull('delete_time')->find();
            if (!$note) {
                self::setError('记录不存在');
                return false;
            }
            if (!in_array($imageType, ['tongue_images', 'report_files'])) {
                self::setError('类型无效');
                return false;
            }
            $images = self::parseJsonArray($note->$imageType);
            // 统一转为相对路径再匹配
            $targetPath = self::toRelativePath($imagePath);
            $images = array_values(array_filter($images, fn($url) => self::toRelativePath($url) !== $targetPath));
            $note->$imageType = empty($images) ? null : json_encode($images, JSON_UNESCAPED_UNICODE);
            $note->save();
            return true;
        } catch (\Exception $e) {
            self::setError($e->getMessage());
            return false;
        }
    }

    /**
     * 聚合某诊单所有备注中的图片（供 DiagnosisLogic::detail 使用）
     */
    public static function getAggregatedImages(int $diagnosisId): array
    {
        $records = DoctorNote::where('diagnosis_id', $diagnosisId)
            ->whereNull('delete_time')
            ->select();

        $tongueImages = [];
        $reportFiles = [];
        foreach ($records as $r) {
            $tongueImages = array_merge($tongueImages, self::parseJsonArray($r->tongue_images));
            $reportFiles = array_merge($reportFiles, self::parseJsonArray($r->report_files));
        }

        return [
            'tongue_images' => array_map(
                fn($u) => empty($u) ? $u : FileService::getFileUrl($u),
                array_values(array_unique($tongueImages))
            ),
            'report_files' => array_map(
                fn($u) => empty($u) ? $u : FileService::getFileUrl($u),
                array_values(array_unique($reportFiles))
            ),
        ];
    }

    /**
     * 如果 URL 的域名是当前配置的存储域名则去掉，否则原样保留
     */
    private static function toRelativePath(string $url): string
    {
        if (empty($url)) return $url;
        if (stripos($url, 'http://') !== 0 && stripos($url, 'https://') !== 0) {
            return $url;
        }
        // 获取当前存储域名
        $domain = self::getStorageDomain();
        if ($domain && stripos($url, rtrim($domain, '/')) === 0) {
            $relative = substr($url, strlen(rtrim($domain, '/')));
            return ltrim($relative, '/');
        }
        // 非当前存储域名，保留完整 URL
        return $url;
    }

    private static function getStorageDomain(): string
    {
        $default = \app\common\service\ConfigService::get('storage', 'default', 'local');
        if ($default === 'local') {
            return request()->domain() . '/';
        }
        $storage = \app\common\service\ConfigService::get('storage', $default);
        return $storage ? ($storage['domain'] ?? '') : '';
    }

    private static function parseJsonArray($value): array
    {
        if (is_array($value)) return $value;
        if (is_string($value)) {
            $decoded = json_decode($value, true);
            return is_array($decoded) ? $decoded : [];
        }
        return [];
    }
}