<?php
// application/common/model/GiveGiftBases.php

namespace app\common\model;

use think\Model;
use think\Db;
use think\Log;
use app\common\library\GiftTableManager;
use app\common\library\Snowflake;

class GiveGiftBase extends Model
{
    // 关闭自动时间戳
    protected $autoWriteTimestamp = false;

    // 错误信息
    protected $error = '';

    /**
     * 获取错误信息
     * @return string
     */
    public function getError()
    {
        return $this->error;
    }

    /**
     * 获取当前表名
     * @param int $timestamp 时间戳
     * @return string
     */
    protected function getTableName($timestamp = null)
    {
        return GiftTableManager::getTableName($timestamp);
    }

    /**
     * 添加送礼记录（直接写入数据库）
     * @param array $data 数据
     * @return int|false
     */
    public function addGiftRecord($data)
    {
        try {
            // 生成雪花ID
//            $data['id'] = Snowflake::generate();

            // 设置时间
            if (empty($data['createtime'])) {
                $data['createtime'] = time();
            }
            $data['updatetime'] = time();

            // 确保字段完整
            $defaults = [
                'user_id' => 0,
                'gift_id' => 0,
                'gift_type' => 1,
                'number' => 0,
                'gift_user' => 0,
                'from_id' => 0,
                'pit_number' => 0,
                'total_price' => 0,
                'type' => 1,
                'from' => 1,
            ];

            $data = array_merge($defaults, $data);

            // 获取表名
            $tableName = $this->getTableName($data['createtime']);

            // 确保表存在
            $month = date('Ym', $data['createtime']);
            GiftTableManager::createMonthTable($month);

            // 插入数据
            $result = Db::table($tableName)->insert($data);

            if ($result) {
                Log::info("送礼记录写入成功，ID: {$data['id']}, 表: {$tableName}");
                return $data['id'];
            } else {
                $this->error = '写入数据库失败';
                Log::error("送礼记录写入失败: " . json_encode($data));
                return false;
            }
        } catch (\Exception $e) {
            $this->error = $e->getMessage();
            Log::error("添加送礼记录异常: " . $e->getMessage());
            return false;
        }
    }

    /**
     * 批量添加送礼记录
     * @param array $dataList 数据列表
     * @return int|false
     */
    public function addGiftRecords($dataList)
    {
        try {
            // 按月份分组
            $groupedData = [];
            foreach ($dataList as $data) {
                // 生成雪花ID
                $data['id'] = Snowflake::generate();

                // 设置时间
                if (empty($data['createtime'])) {
                    $data['createtime'] = time();
                }
                $data['updatetime'] = time();

                $month = date('Ym', $data['createtime']);
                $tableName = 'fa_vs_give_gift_' . $month;

                // 确保表存在
                GiftTableManager::createMonthTable($month);

                if (!isset($groupedData[$tableName])) {
                    $groupedData[$tableName] = [];
                }

                $groupedData[$tableName][] = $data;
            }

            // 批量插入
            $total = 0;
            foreach ($groupedData as $tableName => $data) {
                $result = Db::table($tableName)->insertAll($data);
                if ($result) {
                    $total += count($data);
                }
            }

            Log::info("批量送礼记录写入成功，总计: {$total} 条");
            return $total;
        } catch (\Exception $e) {
            $this->error = $e->getMessage();
            Log::error("批量添加送礼记录异常: " . $e->getMessage());
            return false;
        }
    }

    /**
     * 查询送礼记录
     * @param array $where 查询条件
     * @param array $options 查询选项
     * @return array
     */
    public function getGiftRecords($where = [], $options = [])
    {
        $defaultOptions = [
            'fields' => '*',
            'order' => 'createtime desc',
            'page' => 1,
            'limit' => 20,
            'start_time' => null,
            'end_time' => null,
        ];

        $options = array_merge($defaultOptions, $options);

        // 获取需要查询的表
        $tables = GiftTableManager::getTablesByTimeRange(
            $options['start_time'],
            $options['end_time']
        );

        if (empty($tables)) {
            return ['total' => 0, 'data' => [], 'page' => $options['page'], 'limit' => $options['limit']];
        }

        // 构建查询条件
        $queryConditions = $this->buildQueryConditions($where);

        // 多表查询
        return $this->unionQuery($tables, $queryConditions, $options);
    }

    /**
     * 构建查询条件
     * @param array $where
     * @return array
     */
    protected function buildQueryConditions($where)
    {
        $conditions = [];

        $fieldMap = [
            'user_id' => 'user_id',
            'gift_user' => 'gift_user',
            'from_id' => 'from_id',
            'gift_id' => 'gift_id',
            'type' => 'type',
            'from' => 'from',
            'gift_type' => 'gift_type',
            'createtime' => 'createtime',
        ];

        foreach ($where as $key => $value) {
            if (isset($fieldMap[$key])) {
                if (is_array($value) && isset($value[0]) && in_array(strtolower($value[0]), ['>', '<', '>=', '<=', '<>', '!=', 'like', 'not like', 'between'])) {
                    $conditions[$fieldMap[$key]] = $value;
                } else {
                    $conditions[$fieldMap[$key]] = ['=', $value];
                }
            }
        }

        return $conditions;
    }

    /**
     * 多表联合查询
     * @param array $tables
     * @param array $conditions
     * @param array $options
     * @return array
     */
    protected function unionQuery($tables, $conditions, $options)
    {
        $unionSql = '';
        $params = [];

        // 构建每个表的查询
        foreach ($tables as $table) {
            $sql = "SELECT {$options['fields']} FROM `{$table}` WHERE 1=1";

            foreach ($conditions as $field => $condition) {
                if (is_array($condition)) {
                    if (count($condition) == 2) {
                        $operator = $condition[0];
                        $value = $condition[1];
                        $sql .= " AND `{$field}` {$operator} ?";
                        $params[] = $value;
                    } elseif (count($condition) == 3 && strtolower($condition[0]) == 'between') {
                        $sql .= " AND `{$field}` BETWEEN ? AND ?";
                        $params[] = $condition[1];
                        $params[] = $condition[2];
                    }
                }
            }

            // 时间范围
            if ($options['start_time']) {
                $sql .= " AND createtime >= ?";
                $params[] = $options['start_time'];
            }

            if ($options['end_time']) {
                $sql .= " AND createtime <= ?";
                $params[] = $options['end_time'];
            }

            if ($unionSql) {
                $unionSql .= " UNION ALL ";
            }
            $unionSql .= "(" . $sql . ")";
        }

        // 计算总数
        $countSql = "SELECT COUNT(*) as total FROM ({$unionSql}) as tmp";
        try {
            $totalResult = Db::query($countSql, $params);
            $total = $totalResult[0]['total'] ?? 0;
        } catch (\Exception $e) {
            Log::error("查询送礼记录总数失败: " . $e->getMessage());
            $total = 0;
        }

        // 分页查询
        $data = [];
        if ($total > 0) {
            $offset = ($options['page'] - 1) * $options['limit'];
            $dataSql = "{$unionSql} ORDER BY {$options['order']} LIMIT {$offset}, {$options['limit']}";

            try {
                $data = Db::query($dataSql, $params);
            } catch (\Exception $e) {
                Log::error("查询送礼记录数据失败: " . $e->getMessage());
                $data = [];
            }
        }

        return [
            'total' => $total,
            'data' => $data,
            'page' => $options['page'],
            'limit' => $options['limit']
        ];
    }

    /**
     * 统计送礼数据
     * @param array $where 查询条件
     * @param array $options 统计选项
     * @return array
     */
    public function getGiftStatistics($where = [], $options = [])
    {
        $defaultOptions = [
            'group_by' => null, // 分组字段
            'start_time' => null,
            'end_time' => null,
        ];

        $options = array_merge($defaultOptions, $options);

        // 获取需要查询的表
        $tables = GiftTableManager::getTablesByTimeRange(
            $options['start_time'],
            $options['end_time']
        );

        if (empty($tables)) {
            return [];
        }

        // 构建查询条件
        $conditions = $this->buildQueryConditions($where);

        $unionSql = '';
        $params = [];

        // 构建统计SQL
        $fields = 'SUM(number) as total_number, SUM(total_price) as total_price, COUNT(*) as total_count';
        if ($options['group_by']) {
            $fields .= ", {$options['group_by']}";
        }

        foreach ($tables as $table) {
            $sql = "SELECT {$fields} FROM `{$table}` WHERE 1=1";

            foreach ($conditions as $field => $condition) {
                if (is_array($condition) && count($condition) == 2) {
                    $operator = $condition[0];
                    $value = $condition[1];
                    $sql .= " AND `{$field}` {$operator} ?";
                    $params[] = $value;
                }
            }

            // 时间范围
            if ($options['start_time']) {
                $sql .= " AND createtime >= ?";
                $params[] = $options['start_time'];
            }

            if ($options['end_time']) {
                $sql .= " AND createtime <= ?";
                $params[] = $options['end_time'];
            }

            if ($options['group_by']) {
                $sql .= " GROUP BY {$options['group_by']}";
            }

            if ($unionSql) {
                $unionSql .= " UNION ALL ";
            }
            $unionSql .= "(" . $sql . ")";
        }

        // 最终统计
        if ($options['group_by']) {
            $finalSql = "SELECT {$options['group_by']}, 
                                SUM(total_number) as total_number, 
                                SUM(total_price) as total_price, 
                                SUM(total_count) as total_count 
                         FROM ({$unionSql}) as tmp 
                         GROUP BY {$options['group_by']}";
        } else {
            $finalSql = "SELECT SUM(total_number) as total_number, 
                                SUM(total_price) as total_price, 
                                SUM(total_count) as total_count 
                         FROM ({$unionSql}) as tmp";
        }

        try {
            $result = Db::query($finalSql, $params);
            return $options['group_by'] ? $result : ($result[0] ?? []);
        } catch (\Exception $e) {
            Log::error("统计送礼数据失败: " . $e->getMessage());
            return [];
        }
    }

    /**
     * 获取时间范围内的送礼趋势
     * @param int $startTime 开始时间
     * @param int $endTime 结束时间
     * @param string $interval 间隔 day, week, month
     * @return array
     */
    public function getTrendStatistics($startTime, $endTime, $interval = 'day')
    {
        $tables = GiftTableManager::getTablesByTimeRange($startTime, $endTime);

        if (empty($tables)) {
            return [];
        }

        $dateFormat = '';
        switch ($interval) {
            case 'day':
                $dateFormat = '%Y-%m-%d';
                break;
            case 'week':
                $dateFormat = '%Y-%u';
                break;
            case 'month':
                $dateFormat = '%Y-%m';
                break;
            default:
                $dateFormat = '%Y-%m-%d';
        }

        $unionSql = '';
        $params = [];

        foreach ($tables as $table) {
            $sql = "SELECT 
                    DATE_FORMAT(FROM_UNIXTIME(createtime), '{$dateFormat}') as date_group,
                    SUM(total_price) as total_price,
                    COUNT(*) as total_count,
                    COUNT(DISTINCT user_id) as user_count,
                    COUNT(DISTINCT gift_user) as receiver_count
                FROM `{$table}` 
                WHERE createtime >= ? AND createtime <= ?
                GROUP BY date_group";

            if ($unionSql) {
                $unionSql .= " UNION ALL ";
            }
            $unionSql .= "(" . $sql . ")";
            $params[] = $startTime;
            $params[] = $endTime;
        }

        $finalSql = "SELECT 
                date_group,
                SUM(total_price) as total_price,
                SUM(total_count) as total_count,
                SUM(user_count) as user_count,
                SUM(receiver_count) as receiver_count
            FROM ({$unionSql}) as tmp
            GROUP BY date_group
            ORDER BY date_group";

        try {
            $result = Db::query($finalSql, $params);
            return $result;
        } catch (\Exception $e) {
            Log::error("获取送礼趋势失败: " . $e->getMessage());
            return [];
        }
    }


    /**
     * 统计送礼数据排行
     * @param array $where 查询条件
     * @param array $options 统计选项
     * @return array
     */
    public function getGiftStatisticsRanking($where = [], $options = [])
    {
        $defaultOptions = [
            'group_by' => null, // 分组字段
            'start_time' => null,
            'end_time' => null,
        ];

        $options = array_merge($defaultOptions, $options);

        // 获取需要查询的表
        $tables = GiftTableManager::getTablesByTimeRange(
            $options['start_time'],
            $options['end_time']
        );

        if (empty($tables)) {
            return [];
        }

        // 构建查询条件
        $conditions = $this->buildQueryConditions($where);

        $unionSql = '';
        $params = [];

        // 构建统计SQL
        $fields = 'SUM(total_price) as total_price';
        if ($options['group_by']) {
            $fields .= ", {$options['group_by']}";
        }

        foreach ($tables as $table) {
            $sql = "SELECT {$fields} FROM `{$table}` WHERE 1=1";

            foreach ($conditions as $field => $condition) {
                if (is_array($condition) && count($condition) == 2) {
                    $operator = $condition[0];
                    $value = $condition[1];
                    $sql .= " AND `{$field}` {$operator} ?";
                    $params[] = $value;
                }
            }

            // 时间范围
            if ($options['start_time']) {
                $sql .= " AND createtime >= ?";
                $params[] = $options['start_time'];
            }

            if ($options['end_time']) {
                $sql .= " AND createtime <= ?";
                $params[] = $options['end_time'];
            }

            if ($options['group_by']) {
                $sql .= " GROUP BY {$options['group_by']}";
            }

            if ($unionSql) {
                $unionSql .= " UNION ALL ";
            }
            $unionSql .= "(" . $sql . ")";
        }

        // 最终统计
        if ($options['group_by']) {
            $finalSql = "SELECT {$options['group_by']}, 
                                SUM(total_price) * 10 as total
                         FROM ({$unionSql}) as tmp 
                         GROUP BY {$options['group_by']}
                         ORDER BY total desc";
        } else {
            $finalSql = "SELECT SUM(total_number) as total_number, 
                                SUM(total_price) as total, 
                                SUM(total_count) as total_count 
                         FROM ({$unionSql}) as tmp";
        }

        try {
            $result = Db::query($finalSql, $params);
            return $options['group_by'] ? $result : ($result[0] ?? []);
        } catch (\Exception $e) {
            Log::error("统计送礼数据失败: " . $e->getMessage());
            return [];
        }
    }
}