From 4a6869ee9c78f6c1496fefa35cd5b71afd1bd44d Mon Sep 17 00:00:00 2001
From: Collin Guarino <collin.guarino@gmail.com>
Date: Wed, 3 Feb 2016 23:08:25 -0500
Subject: Cleaned up bridge.go file, added more documentation, and fixed line
 spacing.

---
 bridge.go | 68 +++++++--------------------------------------------------------
 1 file changed, 7 insertions(+), 61 deletions(-)

diff --git a/bridge.go b/bridge.go
index 581e180..7172289 100644
--- a/bridge.go
+++ b/bridge.go
@@ -1,6 +1,5 @@
 package hue
 
-// username: 319b36233bd2328f3e40731b23479207
 import (
     "log"
     "os"
@@ -16,17 +15,22 @@ import (
     "errors"
 )
 
+// Bridge struct defines hardware that is used to communicate with the lights.
 type Bridge struct {
     IPAddress   string
     Username    string
     Info        BridgeInfo
 }
 
+// BridgeInfo struct is the outermost (root) structure
+// for parsing xml from a bridge.
 type BridgeInfo struct {
     XMLName	    xml.Name	`xml:"root"`
     Device      Device      `xml:"device"`
 }
 
+// Device struct is the innermost (base) structure
+// for parsing device info xml from a bridge.
 type Device struct {
     XMLName	            xml.Name    `xml:"device"`
     DeviceType          string      `xml:"deviceType"`
@@ -41,6 +45,7 @@ type Device struct {
     UDN                 string      `xml:"UDN"`
 }
 
+// bridge.Get will send an http GET to the bridge
 func (self *Bridge) Get(path string) ([]byte, io.Reader, error) {
     resp, err := http.Get("http://" + self.IPAddress + path)
     if self.Error(resp, err) {
@@ -78,7 +83,6 @@ func handleResponse(resp *http.Response) ([]byte, io.Reader, error) {
         return []byte{}, nil, err
     }
     reader := bytes.NewReader(body)
-
     return body, reader, nil
 }
 
@@ -89,7 +93,7 @@ func (self *Bridge) Error(resp *http.Response, err error) (bool) {
         return true
     } else if resp.StatusCode != 200 {
         // TODO: handle other status codes
-        trace(fmt.Sprintf("Bridge status error: %d", resp.StatusCode), nil)
+        log.Println(fmt.Sprintf("Bridge status error: %d", resp.StatusCode))
         return true
     }
     return false
@@ -103,70 +107,12 @@ type Error struct {
     Details     string
 }
 
-// Error Return Values
-// http://www.developers.meethue.com/documentation/error-messages
-var (
-    // Not from Hue documentation
-    NoErr = Error{}
-    ErrResponse = Error{0, "Could not read or parse response from bridge",
-        "Data structure for return type may be invalid."}
-
-
-    // Generic Errors from Hue SDK
-    ErrAuth         = Error{1, "Unauthorized User",
-        `This will be returned if an invalid username is used in the request,
-        or if the username does not have the rights to modify the resource.`}
-    ErrJson         = Error{2, "Body contains invalid JSON.",
-        "This will be returned if the body of the message contains invalid JSON."}
-    ErrResource     = Error{3, "Resource, <resource>, not available.",
-        `This will be returned if the addressed resource does not exist.
-         E.g. the user specifies a light ID that does not exist.`}
-    ErrMethod       = Error{4, "Method, <method_name>, not available for resource, <resource>",
-        `This will be returned if the method (GET/POST/PUT/DELETE)
-         used is not supported by the URL e.g. DELETE is not
-         supported on the /config resource`}
-    ErrParamMissing = Error{5, "Missing parameters in body.", `Will be returned if
-         required parameters are not present in the message body. The presence
-         of invalid parameters should not trigger this error as long as all
-         required parameters are present.`}
-    ErrParamNA      = Error{6, "Parameter, <parameter>, not available.",
-        `This will be returned if a parameter sent in the message body does
-         not exist. This error is specific to PUT commands; invalid parameters
-         in other commands are simply ignored.`}
-    ErrParamInvalid = Error{7, "Invalid value, <value>, for parameter, <parameter>",
-        `This will be returned if the value set for a parameter is of the
-         incorrect format or is out of range.`}
-    ErrParamStatic  = Error{8, "Parameter, <parameter>, is not modifiable",
-        `This will be returned if an attempt to modify
-         a read only parameter is made.`}
-    ErrItemOverflow = Error{11, "Too many items to list.",
-        "List in request contains too many items"}
-    ErrPortalConn   = Error{12, "Portal connection required.",
-        `Command requires portal connection.
-        Returned if portalservices is “false“ or the portal connection is down`}
-    ErrorInternal   = Error{901, "Internal error, <error code>",
-        `This will be returned if there is an internal error in the
-         processing of the command. This indicates an error in the
-         bridge, not in the message being sent.`}
-
-    // Command Specific Errors from Hue SDK
-    ErrLink   = Error{101, "Link button not pressed.",
-        `/config/linkbutton is false. Link button has
-         not been pressed in last 30 seconds.`}
-    ErrDHCP   = Error{110, "DHCP cannot be disabled.",
-        "DHCP can only be disabled if there is a valid static IP configuration"}
-    ErrUpdate = Error{111, "Invalid updatestate.",
-        "Checkforupdate can only be set in updatestate 0 and 1."}
-    // TODO: Need to add 201, 301, 305, 306, 402, 403, 501, 502, 601...
-)
-
 // NewBridge defines hardware that is compatible with Hue.
 func NewBridge(ip string, username string) *Bridge {
     bridge := Bridge {
         IPAddress: ip,
         Username: username,
     }
-
     GetBridgeInfo(&bridge)
     return &bridge
 }
-- 
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