From 40664f145aef849c0ff31a93c10866c16cb0c054 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=9D=8E=E5=85=89=E6=98=A5?= <gc@dtapp.net>
Date: Thu, 26 May 2022 23:56:29 +0800
Subject: [PATCH] - init

---
 .drone.yml        |  17 +++++++
 .gitignore        |   9 ++++
 go.mod            |   5 ++
 go.sum            |   2 +
 godecimal.go      | 115 ++++++++++++++++++++++++++++++++++++++++++++++
 godecimal_test.go |  16 +++++++
 version.go        |   3 ++
 version_test.go   |   7 +++
 8 files changed, 174 insertions(+)
 create mode 100644 .drone.yml
 create mode 100644 .gitignore
 create mode 100644 go.mod
 create mode 100644 go.sum
 create mode 100644 godecimal.go
 create mode 100644 godecimal_test.go
 create mode 100644 version.go
 create mode 100644 version_test.go

diff --git a/.drone.yml b/.drone.yml
new file mode 100644
index 0000000..c56c479
--- /dev/null
+++ b/.drone.yml
@@ -0,0 +1,17 @@
+kind: pipeline
+type: docker
+name: clone
+
+steps:
+  - name: Test
+    image: golang:1.18
+    commands:
+      - go env -w GO111MODULE=on
+      - go env -w GOPROXY=https://goproxy.cn,direct
+      - go test -v ./...
+  - name: Benchmark
+    image: golang:1.18
+    commands:
+      - go env -w GO111MODULE=on
+      - go env -w GOPROXY=https://goproxy.cn,direct
+      - go test -bench=. -benchmem
\ No newline at end of file
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..4794692
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,9 @@
+.env
+.git
+.svn
+.idea
+.vscode
+*.log
+goinit.sh
+gomod.sh
+/vendor/
\ No newline at end of file
diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..ec068e7
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,5 @@
+module go.dtapp.net/godecimal
+
+go 1.18
+
+require go.dtapp.net/gostring v1.0.3
diff --git a/go.sum b/go.sum
new file mode 100644
index 0000000..5d8b1b3
--- /dev/null
+++ b/go.sum
@@ -0,0 +1,2 @@
+go.dtapp.net/gostring v1.0.3 h1:KSOq4D77/g5yZN/bqWfZ0kOOaPr/P1240vg03+XdENI=
+go.dtapp.net/gostring v1.0.3/go.mod h1:+ggrOvgQDQturi1QGsXEpyRN/ZPoRDaqhMujIk5lrgQ=
diff --git a/godecimal.go b/godecimal.go
new file mode 100644
index 0000000..fec8758
--- /dev/null
+++ b/godecimal.go
@@ -0,0 +1,115 @@
+package godecimal
+
+import (
+	"fmt"
+	"go.dtapp.net/gostring"
+	"math"
+	"strconv"
+)
+
+// Decimal 四舍五入
+func Decimal(value float64) float64 {
+	value, _ = strconv.ParseFloat(fmt.Sprintf("%.2f", value), 64)
+	return value
+}
+
+// Round 四舍五入
+func Round(f float64, n int) float64 {
+	n10 := math.Pow10(n)
+	return math.Trunc((f+0.5/n10)*n10) / n10
+}
+
+// RoundYInt64 四舍五入
+func RoundYInt64(y int64, n int) float64 {
+	return Round(float64(y/100), n)
+}
+
+// RoundYString 四舍五入
+func RoundYString(y string, n int) float64 {
+	return Round(gostring.ToFloat64(y)/100, n)
+}
+
+// Multiply 相乘
+func Multiply(y, x float64) float64 {
+	return Round(y*x, 2)
+}
+
+// PddCouponAmount 优惠券金额
+func PddCouponAmount(y int64) float64 {
+	return Round(float64(y)/100, 2)
+}
+
+// PddCouponProportion 拼多多佣金比率
+func PddCouponProportion(y int64) float64 {
+	return Round(float64(y)/10, 2)
+}
+
+// PddGoodsOriginalPrice 拼多多商品原价
+func PddGoodsOriginalPrice(y int64) float64 {
+	return Round(float64(y)/100, 2)
+}
+
+// PddGoodsPrice 拼多多商品券后价
+func PddGoodsPrice(y, x float64) float64 {
+	return Round(y-x, 2)
+}
+
+// PddCommission 拼多多佣金
+func PddCommission(y, x float64) float64 {
+	return Round((y*x)/100, 2)
+}
+
+// TbCouponAmount 淘宝优惠券金额
+func TbCouponAmount(y int64) float64 {
+	return Round(float64(y), 2)
+}
+
+// TbCouponProportion 淘宝佣金比率
+func TbCouponProportion(y string) float64 {
+	return Round(gostring.ToFloat64(y)/100, 2)
+}
+
+// TbGoodsOriginalPrice 淘宝商品原价
+func TbGoodsOriginalPrice(y string) float64 {
+	return Round(gostring.ToFloat64(y), 2)
+}
+
+// TbGoodsPrice 淘宝商品券后价
+func TbGoodsPrice(y, x float64) float64 {
+	return Round(y-x, 2)
+}
+
+// TbCommission 淘宝佣金
+func TbCommission(y, x float64) float64 {
+	return Round((y*x)/100, 2)
+}
+
+// WmCouponAmount 小商店优惠券金额
+func WmCouponAmount(y string) float64 {
+	return Round(gostring.ToFloat64(y)/100, 2)
+}
+
+// WmCouponProportion 小商店佣金比率
+func WmCouponProportion(y int64) float64 {
+	return Round(float64(y)/100, 2)
+}
+
+// WmCommission 小商店佣金
+func WmCommission(y int64) float64 {
+	return Round(float64(y)/100, 2)
+}
+
+// WmGoodsOriginalPrice 小商店商品原价
+func WmGoodsOriginalPrice(y int64) float64 {
+	return Round(float64(y)/100, 2)
+}
+
+// WmGoodsPrice 小商店商品券后价
+func WmGoodsPrice(y int64) float64 {
+	return Round(float64(y)/100, 2)
+}
+
+// JdCommission 京东佣金
+func JdCommission(y, x float64) float64 {
+	return Round((y*x)/100, 2)
+}
diff --git a/godecimal_test.go b/godecimal_test.go
new file mode 100644
index 0000000..f816c9e
--- /dev/null
+++ b/godecimal_test.go
@@ -0,0 +1,16 @@
+package godecimal
+
+import (
+	"testing"
+)
+
+func TestDecimal(t *testing.T) {
+	t.Log(Decimal(2.3333))
+}
+
+func TestRound(t *testing.T) {
+	t.Log(Round(2.3333, 1))
+	t.Log(Round(2.3333, 2))
+	t.Log(Round(2.3333, 3))
+	t.Log(Round(2.3333, 4))
+}
diff --git a/version.go b/version.go
new file mode 100644
index 0000000..c0b8aad
--- /dev/null
+++ b/version.go
@@ -0,0 +1,3 @@
+package godecimal
+
+const Version = "1.0.0"
diff --git a/version_test.go b/version_test.go
new file mode 100644
index 0000000..750d967
--- /dev/null
+++ b/version_test.go
@@ -0,0 +1,7 @@
+package godecimal
+
+import "testing"
+
+func TestVersion(t *testing.T) {
+	t.Log(Version)
+}