<?php

declare(strict_types=1);

namespace app\adminapi\controller\tcm;

use app\adminapi\controller\BaseAdminController;
use app\adminapi\logic\tcm\FollowupAudioLogic as Logic;
use app\common\service\followupaudio\FollowupAudioAccess as Access;
use app\common\service\followupaudio\FollowupAudioStream;
use app\common\service\followupaudio\FollowupAudioUpload as Upload;
use DomainException;

final class FollowupAudioController extends BaseAdminController
{
    public function capabilities()
    {
        return $this->handle(false, ['diagnosis_id'], fn (array $p): array =>
            Logic::capabilities($this->positive($p, 'diagnosis_id'), $this->adminId, $this->adminInfo));
    }

    public function uploadSession()
    {
        return $this->handle(true, ['diagnosis_id', 'file_name', 'total_bytes'], function (array $p): array {
            Logic::requireEnabled(true);
            return Upload::createSession($this->positive($p, 'diagnosis_id'), $this->textValue($p, 'file_name', 240),
                $this->positive($p, 'total_bytes'), $this->adminId, $this->adminInfo);
        });
    }

    public function uploadChunk()
    {
        return $this->handle(true, ['upload_id', 'index'], function (array $p): array {
            Logic::requireEnabled(true);
            $index = $p['index'] ?? null;
            if (!(is_int($index) || is_string($index)) || !preg_match('/^\d{1,5}$/D', (string) $index)) {
                throw new DomainException('录音分片序号无效');
            }
            $file = $this->request->file('file');
            if (!$file instanceof \think\file\UploadedFile || !$file->isValid()) {
                throw new DomainException('录音分片上传失败，请检查文件大小限制');
            }
            return Upload::putChunk($this->textValue($p, 'upload_id', 64), (int) $index,
                $file->getPathname(), $this->adminId, $this->adminInfo);
        });
    }

    public function uploadComplete()
    {
        return $this->handle(true, ['upload_id'], function (array $p): array {
            Logic::requireEnabled(true);
            return Upload::complete($this->textValue($p, 'upload_id', 64), $this->adminId, $this->adminInfo);
        });
    }

    public function create()
    {
        return $this->handle(true, ['diagnosis_id', 'upload_id', 'recorded_at', 'model_key', 'channel_roles'], fn (array $p): array =>
            Logic::create([
                'diagnosis_id' => $this->positive($p, 'diagnosis_id'),
                'upload_id' => $this->textValue($p, 'upload_id', 64),
                'recorded_at' => $this->textValue($p, 'recorded_at', 19),
                'model_key' => $this->textValue($p, 'model_key', 16),
                // Preserve raw JSON type and exact enum, including null/whitespace rejection.
                'channel_roles' => array_key_exists('channel_roles', $p) ? $p['channel_roles'] : 'unconfirmed',
            ], $this->adminId, $this->adminInfo), true);
    }

    public function lists()
    {
        return $this->handle(false, ['diagnosis_id'], fn (array $p): array =>
            Logic::lists($this->positive($p, 'diagnosis_id'), $this->adminId, $this->adminInfo));
    }

    public function detail()
    {
        return $this->handle(false, ['id'], fn (array $p): array =>
            Logic::detail($this->positive($p, 'id'), $this->adminId, $this->adminInfo));
    }

    public function saveDraft()
    {
        return $this->handle(true, ['id', 'version', 'items', 'channel_roles'], fn (array $p): array =>
            Logic::saveDraft($this->positive($p, 'id'), $this->positive($p, 'version'),
                $this->items($p), $this->adminId, $this->adminInfo,
                array_key_exists('channel_roles', $p) ? $this->textValue($p, 'channel_roles', 20) : null), true);
    }

    public function apply()
    {
        return $this->handle(true, ['id', 'version', 'items'], fn (array $p): array =>
            Logic::apply($this->positive($p, 'id'), $this->positive($p, 'version'),
                $this->items($p), $this->adminId, $this->adminInfo), true);
    }

    public function retry()
    {
        return $this->handle(true, ['id'], fn (array $p): array =>
            Logic::retry($this->positive($p, 'id'), $this->adminId, $this->adminInfo));
    }

    public function audio()
    {
        return $this->handle(false, ['id'], function (array $p): FollowupAudioStream {
            $task = Access::task($this->positive($p, 'id'), $this->adminId, $this->adminInfo);
            $upload = Upload::session((string) $task['upload_id']);
            return new FollowupAudioStream(Upload::path($upload), (string) $upload['extension']);
        });
    }

    private function handle(bool $post, array $allowed, callable $handler, bool $typedJson = false)
    {
        if ($post ? !$this->request->isPost() : !$this->request->isGet()) {
            return $this->fail('请求方式错误');
        }
        // Review JSON carries strict booleans/integers and exact source evidence. Global trim
        // would stringify scalars and alter quotations; keep all explicit validators below.
        $params = $post ? $this->request->post('', null, $typedJson ? null : '') : $this->request->get();
        if (array_diff(array_keys($params), $allowed) !== []) {
            return $this->fail('请求包含不支持的字段');
        }
        try {
            $this->adminInfo = Access::actor($this->adminId);
            $result = $handler($params);
            return $result instanceof \think\Response ? $result : $this->data($result);
        } catch (DomainException $e) {
            if (str_contains($e->getMessage(), 'FOLLOWUP_AUDIO_STALE_REVIEW')) {
                return $this->fail('病历或日常记录已发生变化，请重新审阅差异后确认', [
                    'code' => 'FOLLOWUP_AUDIO_STALE_REVIEW',
                ]);
            }
            return $this->fail($e->getMessage());
        } catch (\Throwable $e) {
            // Never expose raw SQL, audio paths, transcripts, provider responses or keys.
            return $this->fail('回访录音服务暂不可用，请联系管理员检查部署');
        }
    }

    private function positive(array $p, string $key): int
    {
        $raw = $p[$key] ?? null;
        if (!(is_int($raw) || is_string($raw)) || !preg_match('/^[1-9]\d{0,17}$/D', (string) $raw)) {
            throw new DomainException('记录标识或版本无效');
        }
        return (int) $raw;
    }

    private function textValue(array $p, string $key, int $max): string
    {
        $raw = $p[$key] ?? '';
        if (!is_string($raw) || strlen($raw) > $max) {
            throw new DomainException('文本参数无效');
        }
        return trim($raw);
    }

    private function items(array $p): array
    {
        $items = $p['items'] ?? null;
        if (!is_array($items) || !array_is_list($items) || count($items) > 500
            || strlen(json_encode($items, JSON_UNESCAPED_UNICODE | JSON_THROW_ON_ERROR)) > 2097152) {
            throw new DomainException('审阅项目无效或数量超限');
        }
        return $items;
    }
}