package logic

import (
	"os"
	"path/filepath"
	"strings"
	"testing"
)

func TestCalcBuyVolume(t *testing.T) {
	for _, tt := range []struct {
		price, value float64
		want         int
	}{{10, 5000, 500}, {33, 5000, 100}, {100, 5000, 100}, {0, 5000, 0}} {
		if got := calcBuyVolume(tt.price, tt.value); got != tt.want {
			t.Fatalf("calcBuyVolume(%v,%v)=%d, want %d", tt.price, tt.value, got, tt.want)
		}
	}
}

func TestNewOrderTagIsShortAndFileSafe(t *testing.T) {
	tag := newOrderTag("base")
	if len(tag) > 24 || !strings.HasPrefix(tag, "zt-") || strings.ContainsAny(tag, `<>:"/\\|?*`) {
		t.Fatalf("订单号不符合约束: %q", tag)
	}
}

func TestLoadReceipt(t *testing.T) {
	dir := t.TempDir()
	path := filepath.Join(dir, "order_zt.json")
	raw := []byte(`{"order_id":"zt-b-123","qmt_order_id":"9","stock_code":"000001.SZ","side":"buy","requested_volume":500,"traded_volume":500,"status":"filled","updated_at":"2026-08-25T10:00:00+08:00"}`)
	if err := os.WriteFile(path, raw, 0o644); err != nil {
		t.Fatal(err)
	}
	got, err := loadReceipt(path)
	if err != nil || got.Status != "filled" || got.TradedVolume != 500 {
		t.Fatalf("loadReceipt()=%+v, %v", got, err)
	}
}