package models

import (
    "time"
    
    "gorm.io/gorm"
)

// LastDaily 股票日线数据
type LastDaily struct {
    ID         uint      `gorm:"primarykey;autoIncrement" json:"id"`
    TsCode     string    `gorm:"type:varchar(20);not null;index:idx_ts_code;comment:股票代码" json:"ts_code"`
    TradeDate  time.Time `gorm:"type:date;not null;index:idx_trade_date;comment:交易日期" json:"trade_date"`
    Open       float64   `gorm:"type:decimal(10,4);comment:开盘价" json:"open"`
    High       float64   `gorm:"type:decimal(10,4);comment:最高价" json:"high"`
    Low        float64   `gorm:"type:decimal(10,4);comment:最低价" json:"low"`
    Close      float64   `gorm:"type:decimal(10,4);comment:收盘价" json:"close"`
    PreClose   float64   `gorm:"type:decimal(10,4);comment:昨收价(除权价)" json:"pre_close"`
    Change     float64   `gorm:"type:decimal(10,4);comment:涨跌额" json:"change"`
    PctChg     float64   `gorm:"type:decimal(10,6);comment:涨跌幅(%)" json:"pct_chg"`
    Vol        float64   `gorm:"type:decimal(15,2);comment:成交量(手)" json:"vol"`
    Amount     float64   `gorm:"type:decimal(20,2);comment:成交额(千元)" json:"amount"`
}


func init() {
	database.AppendMigrate(&LastDaily{})
}

// TableName 指定表名
func (LastDaily) TableName() string {
    return "last_daily"
}

// Indexes 定义复合索引（可选，也可以在migration中创建）
func (LastDaily) Indexes() []gorm.Index {
    return []gorm.Index{
        &gorm.IndexModel{
            Name: "idx_ts_code_trade_date",
            Fields: []string{"ts_code", "trade_date"},
        },
    }
}