<?php

namespace app\admin\model;

use think\Model;

use app\admin\model\Num;


class History extends Model
{


    // 表名
    protected $name = 'history';

    // 自动写入时间戳字段
    protected $autoWriteTimestamp = false;

    // 定义时间戳字段名
    protected $createTime = false;
    protected $updateTime = false;
    protected $deleteTime = false;

    // 追加属性
    protected $append = [

    ];

    /**
     * 获取走势图数据
     * @param int $periods 查询最近多少期
     * @param string $type 查询类型 all=全部号码 special=仅特码
     * @return array {expects: [], data: [[num1,...], ...], colorMap: []}
     */
    public function getTrendData($periods = 30, $type = 'all')
    {
        // 查询波色映射
        $num_model = new Num();
        $colorMap = $num_model->column('color', 'num');

        $history = $this
            ->field('expect,num1,num2,num3,num4,num5,num6,num7,openTime')
            ->order('openTime', 'asc')
            ->limit($periods)
            ->select();

        if (empty($history)) {
            return ['expects' => [], 'data' => [], 'colorMap' => []];
        }

        $expects = [];
        $data = [];
        foreach ($history as $row) {
            $expects[] = (string)$row['expect'];
            if ($type === 'special') {
                $data[] = ['num7' => (int)$row['num7']];
            } else {
                $row_data = [];
                for ($i = 1; $i <= 7; $i++) {
                    $row_data['num' . $i] = (int)$row['num' . $i];
                }
                $data[] = $row_data;
            }
        }

        return [
            'expects' => $expects,
            'data' => $data,
            'colorMap' => $colorMap
        ];
    }

    /**
     * 获取冷热号码
     * @param int $periods 查询最近多少期
     * @param string $type 查询类型 all=全部号码 special=仅特码
     * @return array {hot: [], cold: [], all: []}
     */
    public function getHotColdNumbers($periods = 30, $type = 'all')
    {
        $num_model = new Num();
        $colorMap = $num_model->column('color', 'num');
        $animalMap = $num_model->column('animal', 'num');

        $history = $this
            ->field('expect,num1,num2,num3,num4,num5,num6,num7,openTime')
            ->order('openTime', 'desc')
            ->limit($periods)
            ->select();

        if (empty($history)) {
            return ['hot' => [], 'cold' => [], 'all' => []];
        }

        $fields = ($type === 'special') ? ['num7'] : ['num1', 'num2', 'num3', 'num4', 'num5', 'num6', 'num7'];

        // 统计每个号码的出现次数
        $count = array_fill(1, 49, 0);
        $totalAppearances = 0;
        foreach ($history as $row) {
            foreach ($fields as $field) {
                $num = (int)$row[$field];
                if ($num >= 1 && $num <= 49) {
                    $count[$num]++;
                    $totalAppearances++;
                }
            }
        }

        $all = [];
        for ($num = 1; $num <= 49; $num++) {
            $percent = $totalAppearances > 0 ? round($count[$num] / $totalAppearances * 100, 1) : 0;
            $all[] = [
                'num' => $num,
                'count' => $count[$num],
                'percent' => $percent,
                'color' => $colorMap[$num] ?? '—',
                'animal' => $animalMap[$num] ?? '—'
            ];
        }

        // 按出现次数降序排序
        $sorted = $all;
        usort($sorted, function ($a, $b) {
            return $b['count'] - $a['count'];
        });

        // 热号: top 10, 冷号: bottom 10
        $hot = array_slice($sorted, 0, 10);
        $cold = array_slice($sorted, -10);
        $cold = array_reverse($cold);

        return ['hot' => $hot, 'cold' => $cold, 'all' => $all];
    }

    /**
     * 计算遗漏号码
     * @param int $periods 查询最近多少期
     * @param string $type 查询类型 all=全部号码 special=仅特码
     * @return array [{num: int, omit: int, color: string}, ...]
     */
    public function getMissingNumbers($periods = 10, $type = 'all')
    {
        // 查询最近 $periods 期开奖数据
        if ($type === 'special') {
            $history = $this
                ->field('expect,num7')
                ->order('openTime', 'desc')
                ->limit($periods)
                ->select();
        } else {
            $history = $this
                ->field('expect,num1,num2,num3,num4,num5,num6,num7')
                ->order('openTime', 'desc')
                ->limit($periods)
                ->select();
        }

        // 收集最近 $periods 期出现过的号码
        $appeared = [];
        foreach ($history as $row) {
            if ($type === 'special') {
                $fields = ['num7'];
            } else {
                $fields = ['num1', 'num2', 'num3', 'num4', 'num5', 'num6', 'num7'];
            }
            foreach ($fields as $field) {
                if ($row[$field] !== null && $row[$field] !== '') {
                    $appeared[(int)$row[$field]] = true;
                }
            }
        }

        // 获取遗漏号码（1-49中未出现的）
        $missing = [];
        for ($num = 1; $num <= 49; $num++) {
            if (!isset($appeared[$num])) {
                $missing[] = $num;
            }
        }

        // 查询更多历史数据用于计算遗漏期数
        if ($type === 'special') {
            $allHistory = $this
                ->field('num7')
                ->order('openTime', 'desc')
                ->limit(500)
                ->select();
        } else {
            $allHistory = $this
                ->field('num1,num2,num3,num4,num5,num6,num7')
                ->order('openTime', 'desc')
                ->limit(500)
                ->select();
        }

        // 查询波色映射
        $num_model = new Num();
        $colorMap = $num_model->column('color', 'num');

        // 计算遗漏期数并组装结果
        $result = [];
        foreach ($missing as $num) {
            $omitCount = $this->calcOmitCount($num, $allHistory, $type);
            $result[] = [
                'num' => $num,
                'omit' => $omitCount,
                'color' => $colorMap[$num] ?? '—'
            ];
        }

        // 按遗漏期数降序排序
        usort($result, function ($a, $b) {
            return $b['omit'] - $a['omit'];
        });

        return $result;
    }

    /**
     * 计算某个号码的遗漏期数
     * @param int $num 号码
     * @param array $allHistory 历史数据（已按openTime DESC排序）
     * @param string $type 查询类型 all=全部号码 special=仅特码
     * @return int 遗漏期数
     */
    private function calcOmitCount($num, $allHistory, $type = 'all')
    {
        foreach ($allHistory as $idx => $row) {
            if ($type === 'special') {
                if ((int)$row['num7'] === $num) {
                    return $idx;
                }
            } else {
                for ($i = 1; $i <= 7; $i++) {
                    if ((int)$row['num' . $i] === $num) {
                        return $idx;
                    }
                }
            }
        }
        return count($allHistory);
    }


}