<?php
declare(strict_types=1);

namespace app\service\school_approval;

use app\model\school_approval\SchoolApprovalConfig;
use app\model\school_approval\SchoolApprovalConfigNode;
use think\Exception;
use think\facade\Db;

/**
 * 审批流配置服务
 * Class SchoolApprovalConfigService
 * @package app\service\school_approval
 */
class SchoolApprovalConfigService
{
    /**
     * 获取审批流配置列表
     * @param array $where
     * @param int $page
     * @param int $limit
     * @return array
     */
    public function getList(array $where = [], int $page = 1, int $limit = 10): array
    {
        $field = 'id, config_name, description, status, creator_id, created_at, updated_at';
        $order = 'id desc';

        $list = (new SchoolApprovalConfig())
            ->where($where)
            ->field($field)
            ->order($order)
            ->page($page, $limit)
            ->select()
            ->toArray();

        $count = (new SchoolApprovalConfig())->where($where)->count();

        return [
            'list' => $list,
            'count' => $count
        ];
    }

    /**
     * 获取审批流配置详情
     * @param int $id
     * @return array
     */
    public function getInfo(int $id): array
    {
        $info = (new SchoolApprovalConfig())->with(['nodes'])->where(['id' => $id])->find();


        if (empty($info)) {
            return [];
        }
        return $info->toArray();
    }

    /**
     * 添加审批流配置
     * @param array $data
     * @return int
     * @throws \Exception
     */
    public function add(array $data): int
    {
        Db::startTrans();
        try {
            $config = [
                'config_name' => $data['config_name'],
                'description' => $data['description'] ?? '',
                'status'      => $data['status'] ?? 1,
                'creator_id'  => $data['creator_id']
            ];

            $config_id = (new SchoolApprovalConfig())->insertGetId($config);

            // 添加节点
            if (!empty($data['nodes'])) {
                $nodes = [];
                foreach ($data['nodes'] as $sequence => $node) {
                    $nodes[] = [
                        'config_id'     => $config_id,
                        'node_name'     => $node['node_name'],
                        'approver_type' => $node['approver_type'],
                        'approver_ids'  => is_array($node['approver_ids']) ? implode(',', $node['approver_ids']) : $node['approver_ids'],
                        'sign_type'     => $node['sign_type'] ?? SchoolApprovalConfigNode::SIGN_TYPE_OR,
                        'sequence'      => $sequence + 1
                    ];
                }

                (new SchoolApprovalConfigNode())->insertAll($nodes);
            }

            Db::commit();
            return $config_id;
        } catch (\Exception $e) {
            Db::rollback();
            throw new Exception($e->getMessage());
        }
    }

    /**
     * 编辑审批流配置
     * @param array $data
     * @return bool
     * @throws \Exception
     */
    public function edit(array $data): bool
    {
        Db::startTrans();
        try {
            $config = [
                'config_name' => $data['config_name'],
                'description' => $data['description'] ?? '',
                'status'      => $data['status'] ?? 1
            ];

            (new SchoolApprovalConfig())->where(['id' => $data['id']])->update($config);

            // 先删除原有节点
            (new SchoolApprovalConfigNode())->where(['config_id' => $data['id']])->delete();

            // 添加新节点
            if (!empty($data['nodes'])) {
                $nodes = [];
                foreach ($data['nodes'] as $sequence => $node) {
                    $nodes[] = [
                        'config_id'     => $data['id'],
                        'node_name'     => $node['node_name'],
                        'approver_type' => $node['approver_type'],
                        'approver_ids'  => is_array($node['approver_ids']) ? implode(',', $node['approver_ids']) : $node['approver_ids'],
                        'sign_type'     => $node['sign_type'] ?? SchoolApprovalConfigNode::SIGN_TYPE_OR,
                        'sequence'      => $sequence + 1
                    ];
                }

                (new SchoolApprovalConfigNode())->insertAll($nodes);
            }

            Db::commit();
            return true;
        } catch (\Exception $e) {
            Db::rollback();
            throw new Exception($e->getMessage());
        }
    }

    /**
     * 删除审批流配置
     * @param int $id
     * @return bool
     * @throws \Exception
     */
    public function delete(int $id): bool
    {
        Db::startTrans();
        try {
            // 删除配置
            (new SchoolApprovalConfig())->where(['id' => $id])->delete();

            // 删除节点
            (new SchoolApprovalConfigNode())->where(['config_id' => $id])->delete();

            Db::commit();
            return true;
        } catch (\Exception $e) {
            Db::rollback();
            throw new Exception($e->getMessage());
        }
    }

    /**
     * 修改状态
     * @param int $id
     * @param int $status
     * @return bool
     */
    public function changeStatus(int $id, int $status): bool
    {
        return (new SchoolApprovalConfig())->where(['id' => $id])->update(['status' => $status]) !== false;
    }
}