From 67c7dbdd19afcc17816e43ff66873e76101704a5 Mon Sep 17 00:00:00 2001
From: ngharo <nick@ngha.ro>
Date: Thu, 28 Dec 2017 00:48:34 -0600
Subject: Got CRU part of CRUD working decently

---
 server/button.py           | 90 +++++++++++++++++++++++++++++++++-------------
 server/buttonDispatcher.py | 38 ++++++++++++++++++++
 server/lib/uuid.py         |  5 ++-
 server/server.py           |  4 +--
 4 files changed, 110 insertions(+), 27 deletions(-)
 create mode 100644 server/buttonDispatcher.py

diff --git a/server/button.py b/server/button.py
index 8530768..a5b52b8 100644
--- a/server/button.py
+++ b/server/button.py
@@ -4,38 +4,80 @@ import json
 from lib import uuid
 from lib import database
 
-@cherrypy.expose
-class Button(object):
-    STATUS_INVENTORY = 0
-    STATUS_ACTIVE = 1
-    STATUS_INACTIVE = 2 
-    STATUS_SUSPENDED = 3
-    STATUS_DEAD = 4
+STATUS_INVENTORY = 0
+STATUS_ACTIVE = 1
+STATUS_INACTIVE = 2
+STATUS_SUSPENDED = 3
+STATUS_DEAD = 4
+
+def loadAll():
+    db = database.connect()
+    db.execute("SELECT id,status FROM buttons")
+
+    results = []
+    while True:
+        try:
+            button = Button()
+            button.loadFromDb(db.fetchone())
+            results.append(button.toDict())
+        except:
+            break
 
+    return results
+
+class Button(object):
     def __init__(self):
+        self.persisted = False
         self.id = None
-        self.status = 0
+        self.status = STATUS_INVENTORY
+
+    def toDict(self):
+        return {
+            'id': self.id,
+            'status': self.status
+        }
 
-    def GET(self, id):
-        if not uuid.validate(id):
-            return cherrypy.HTTPError(404)
+    def toJSON(self):
+        return json.dumps(self.toDict())
 
+    def loadById(self, id):
         db = database.connect()
         db.execute("SELECT id,status FROM buttons WHERE id = ?" , (str(id),))
-        return db.fetchone()
-#        return json.dumps({
-#            'id': self.id,
-#            'status': self.status
-#        })
 
-    def POST(self):
-        return 'POST BIUTTON'
+        return self.loadFromDb(db.fetchone())
+
+    def loadFromDb(self, dbrs):
+        if dbrs is None:
+            raise cherrypy.HTTPError(404, 'Button not found')
+
+        self.persisted = True
+        self.id, self.status = dbrs
+
+        return self
+
+    def save(self):
+        cherrypy.log('SAVE {} -> {} (persisted: {})'.format(
+            self.id, self.status, self.persisted
+        ))
+        db = database.connect()
+
+        # validate
+        if self.id is None:
+            raise cherrypy.HTTPError(500, "What u doin?")
 
-    def PUT(self, id):
-        if uuid.validate(id):
-            return self.GET(id)
+        # upsert: update
+        elif self.persisted:
+            cherrypy.log("setting other status to " + str(self.status))
+            db.execute("UPDATE buttons SET status = ? WHERE id = ?",
+                (int(self.status), str(self.id),)
+            )
 
-        raise cherrypy.HTTPError(400, 'Invalid UUID')
+        # upsert: insert
+        else:
+            cherrypy.log('INSERT {} -> {} (persisted: {})'.format(
+                self.id, self.status, self.persisted
+            ))
+            db.execute("INSERT INTO buttons VALUES (?, ?)", (self.id, self.status))
 
-    def DELETE(self):
-        return 'DELETE BUTTON'
+        db.connection.commit()
+        return self
diff --git a/server/buttonDispatcher.py b/server/buttonDispatcher.py
new file mode 100644
index 0000000..5dac61c
--- /dev/null
+++ b/server/buttonDispatcher.py
@@ -0,0 +1,38 @@
+import json
+import cherrypy
+from button import loadAll, Button
+from lib import uuid
+
+@cherrypy.expose
+class ButtonDispatcher(object):
+    def GET(self, id=None):
+        if id is None:
+            return json.dumps(loadAll())
+        elif uuid.validate(id):
+            button = Button()
+            return button.loadById(id).toJSON()
+        else:
+            raise cherrypy.HTTPError(400, 'Invalid ID')
+
+    def POST(self, id, status):
+        if not uuid.validate(id):
+            raise cherrypy.HTTPError(401)
+
+        button = Button()
+        button.loadById(id)
+
+        cherrypy.log("Updating status to " + str(status))
+        button.status = status
+        button.save()
+
+        return button.toJSON()
+
+    def PUT(self):
+        cherrypy.log('Generating new button')
+        button = Button()
+        button.id = uuid.gen()
+
+        return button.save().toJSON()
+
+    def DELETE(self):
+        return 'DELETE BUTTON'
diff --git a/server/lib/uuid.py b/server/lib/uuid.py
index 9558f21..e77e3a8 100644
--- a/server/lib/uuid.py
+++ b/server/lib/uuid.py
@@ -1,4 +1,4 @@
-from uuid import UUID
+from uuid import UUID, uuid4
 
 def validate(uuid_to_test, version=4):
     try:
@@ -7,3 +7,6 @@ def validate(uuid_to_test, version=4):
         return False
 
     return str(uuid_obj) == uuid_to_test
+
+def gen():
+    return str(uuid4())
diff --git a/server/server.py b/server/server.py
index 9ec12a1..da9ea17 100644
--- a/server/server.py
+++ b/server/server.py
@@ -9,10 +9,10 @@ class Root(object):
     def index(self):
         return 'Sup?'
 
-from button import Button
+from buttonDispatcher import ButtonDispatcher
 
 cherrypy.tree.mount(Root())
-cherrypy.tree.mount(Button(), '/button', {
+cherrypy.tree.mount(ButtonDispatcher(), '/button', {
     '/': {'request.dispatch': cherrypy.dispatch.MethodDispatcher()}
 })
 
-- 
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