From 9f9f04fabbd32c393438aad8e3ecff3b6b2dcb3f Mon Sep 17 00:00:00 2001
From: zenghongru <zenghongru@gmail.com>
Date: Fri, 14 Aug 2020 20:01:58 +0800
Subject: [PATCH] feat: ip location

---
 api.go         |  1 +
 district.go    |  8 +-------
 ip_location.go | 46 ++++++++++++++++++++++++++++++++++++++++++++++
 meta.go        | 12 ++++++++++++
 4 files changed, 60 insertions(+), 7 deletions(-)
 create mode 100644 ip_location.go
 create mode 100644 meta.go

diff --git a/api.go b/api.go
index fe1b997..1d43ecf 100644
--- a/api.go
+++ b/api.go
@@ -13,6 +13,7 @@ const (
 	districtList        API = "/ws/district/v1/list"
 	districtGetChildren API = "/ws/district/v1/getchildren"
 	districtSearch      API = "/ws/district/v1/search"
+	ipLocation          API = "/ws/location/v1/ip"
 )
 
 // Full returns the full path.
diff --git a/district.go b/district.go
index e4bace6..fcb9ea3 100644
--- a/district.go
+++ b/district.go
@@ -7,17 +7,11 @@ import (
 
 // DistrictResponse 行政区划回复
 type DistrictResponse struct {
-	Status      int               `json:"status"`
-	Message     string            `json:"message"`
+	Meta
 	DataVersion string            `json:"data_version"`
 	Result      [][]*DistrictInfo `json:"result"`
 }
 
-// Success means a valid response.
-func (r *DistrictResponse) Success() bool {
-	return r != nil && r.Status == 0
-}
-
 // DistrictInfo 行政区划信息
 type DistrictInfo struct {
 	ID       string `json:"id"`
diff --git a/ip_location.go b/ip_location.go
new file mode 100644
index 0000000..0134b89
--- /dev/null
+++ b/ip_location.go
@@ -0,0 +1,46 @@
+package txlbs
+
+import (
+	"context"
+	"net/url"
+)
+
+// IPLocationResponse IP定位回复
+type IPLocationResponse struct {
+	Meta
+	Result struct {
+		IP       string `json:"ip"`
+		Location struct {
+			Lng float64 `json:"lng"`
+			Lat float64 `json:"lat"`
+		} `json:"location"`
+		AdInfo struct {
+			Nation   string `json:"nation"`
+			Province string `json:"province"`
+			City     string `json:"city"`
+			Adcode   int    `json:"adcode"`
+		} `json:"ad_info"`
+	} `json:"result"`
+}
+
+// IPLocation 定位查询
+func (c *Client) IPLocation(ctx context.Context, ip string) (*IPLocationResponse, error) {
+	v := url.Values{}
+	if ip != "" {
+		v.Set("ip", ip)
+	}
+	v, err := c.signatureQueryParameter(v, string(ipLocation))
+	if err != nil {
+		return nil, err
+	}
+	r := c.ca.NewRequest().WithPath(ipLocation.Full(v.Encode()))
+	resp, err := c.ca.Do(ctx, r)
+	if err != nil {
+		return nil, err
+	}
+	var dr IPLocationResponse
+	if err := resp.DecodeFromJSON(&dr); err != nil {
+		return nil, err
+	}
+	return &dr, nil
+}
diff --git a/meta.go b/meta.go
new file mode 100644
index 0000000..e2e2bc1
--- /dev/null
+++ b/meta.go
@@ -0,0 +1,12 @@
+package txlbs
+
+// Meta includes common response info.
+type Meta struct {
+	Status  int    `json:"status"`
+	Message string `json:"message"`
+}
+
+// Success means a valid response.
+func (r *Meta) Success() bool {
+	return r != nil && r.Status == 0
+}