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use crate::tcp::Tdx;
/// 对应 pytdx 的 hq.get_xdxr_info、GetXdXrInfo。获取单只股票的股本变迁信息。
#[derive(Debug, Clone)]
pub struct Xdxr<'d> {
pub send: Box<[u8]>,
pub market: u16,
pub code: &'d str,
pub response: Vec<u8>,
pub count: Option<usize>,
pub data: Vec<XdxrData>,
}
impl<'d> Default for Xdxr<'d> {
fn default() -> Self {
Self {
send: {
let mut arr = [0; Self::LEN];
arr.copy_from_slice(Self::SEND);
arr.into()
},
market: 0,
code: "000001",
response: Vec::new(),
count: None,
data: Vec::new(),
}
}
}
impl<'a> Tdx for Xdxr<'a> {
type Item = [XdxrData];
// market=0; code="000001"
const SEND: &'static [u8] = &[
0x0c, 0x1f, 0x18, 0x76, 0x00, 0x01, 0x0b, 0x00, 0x0b, 0x00, 0x0f, 0x00, 0x01, 0x00, 0x00,
0x30, 0x30, 0x30, 0x30, 0x30, 0x31,
];
const TAG: &'static str = "除权除息";
fn send(&mut self) -> &[u8] {
&self.send
}
fn parse(&mut self, v: Vec<u8>) {
if v.len() < 11 {
return;
}
let count = crate::bytes_helper::u16_from_le_bytes(&v, 9) as usize;
let old = self.count.replace(count);
if old.is_some() {
self.data.resize_with(count, XdxrData::default);
self.data
.iter_mut()
.zip(v[11..].chunks_exact(29).map(XdxrData::parse))
.map(|(d, x)| *d = x)
.last();
} else {
self.data = Vec::with_capacity(count);
v[11..]
.chunks_exact(29)
.map(XdxrData::parse)
.map(|x| self.data.push(x))
.last();
};
self.response = v;
}
fn result(&self) -> &Self::Item {
&self.data
}
}
#[derive(Debug, Clone, Default)]
pub struct XdxrData {
pub market: u8,
/// 6 位股票代码
pub code: String,
/// 日期
pub date: u32,
/// 信息类型
///
/// | | 类别 | | 类别 |
/// | - | ------------------------------ | -- | --------------------------------------- |
/// | 1 | 除权除息 | 8 | 增发新股上市 |
/// | 2 | 送配股上市 | 9 | 转配股上市 |
/// | 3 | 非流通股上市股 | 10 | 可转债上市 |
/// | 4 | 未知股本变动 | 11 | 扩缩股 songgu:比例 |
/// | 5 | 股本变化 | 12 | 非流通股缩股 songgu: 比例 |
/// | 6 | 增发新股 peigujia; songgu:未知 | 13 | 送认购权证 songgu: 份数; hongli: 行权价 |
/// | 7 | 股份回购 | 14 | 送认沽权证 songgu: 份数; hongli: 行权价 |
pub category: u8,
/// 分红（每 10 股派现金 x 元）| 前流通盘：
pub fh_qltp: f32,
/// 配股价（每股配股价 x 元）| 前总股本
pub pgj_qzgb: f32,
/// 送转股（每 10 股送转股比例 x 股） | 后流通盘
pub sg_hltp: f32,
/// 配股（每 10 股配股比例 x 股）| 后总股本：
pub pg_hzgb: f32,
}
impl XdxrData {
/// 解析方式：
///
/// | 位置 | 0 | 1-7 | 7 | 8-12 | 13 | 13-29 |
/// | ---- | ---- | ---- | - | ---------------- | ---- | -------- |
/// | 类型 | u8 | &str | / | [`DateTime`][DT] | u8 | / |
/// | 含义 | 市场 | 代码 | / | 日期 | 类别 | 四组数据 |
///
/// [DT]: crate::tcp::helper::DateTime
/// ## 注意
/// `bytes` 为长度 29 的 slice
pub fn parse(bytes: &[u8]) -> XdxrData {
use crate::bytes_helper::{f32_from_le_bytes, u32_from_le_bytes, u8_from_le_bytes};
fn f32_(b: &[u8], p: usize) -> f32 {
let tmp = u32_from_le_bytes(b, p);
if tmp == 0 {
0.
} else {
crate::tcp::helper::vol_amount(tmp as i32) as f32
}
}
let market = u8_from_le_bytes(bytes, 0);
let code = unsafe { std::str::from_utf8_unchecked(&bytes[1..7]) }.into();
let date = crate::tcp::helper::datetime(&bytes[8..12], 9).to_u32();
let category = u8_from_le_bytes(bytes, 12);
let (fh_qltp, pgj_qzgb, sg_hltp, pg_hzgb) = match category {
1 | 11..=14 => (
f32_from_le_bytes(bytes, 13),
f32_from_le_bytes(bytes, 17),
f32_from_le_bytes(bytes, 21),
f32_from_le_bytes(bytes, 25),
),
_ => (
f32_(bytes, 13),
f32_(bytes, 17),
f32_(bytes, 21),
f32_(bytes, 25),
),
};
Self {
market,
code,
date,
category,
fh_qltp,
pgj_qzgb,
sg_hltp,
pg_hzgb,
}
}
}
#[test]
fn connection() -> std::io::Result<()> {
crate::tcp::tests::connection(Xdxr::default())
}
#[test]
fn xdxrdata_parse() {
let target = XdxrData {
market: 0,
code: "000001".to_string(),
date: 19900301,
category: 1,
fh_qltp: 0.0,
pgj_qzgb: 3.56,
sg_hltp: 0.0,
pg_hzgb: 1.0,
};
let parsed = XdxrData::parse(&[
0x00, 0x30, 0x30, 0x30, 0x30, 0x30, 0x31, 0x00, 0x8d, 0xa7, 0x2f, 0x01, 0x01, 0x00, 0x00,
0x00, 0x00, 0x0a, 0xd7, 0x63, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x3f,
]);
compare!(parsed, target);
}