Changes server code to be functional & moves write scheduler into app

lbry_comment_server/main.py

@@ -1,101 +1,53 @@
 import asyncio
-import json
-
 from aiohttp import web
+import aiojobs.aiohttp
 
-from settings import config
-from lbry_comment_server import DATABASE
-from lbry_comment_server.database import obtain_connection
-from lbry_comment_server import api_endpoint
+import schema.db_helpers as helpers
+import lbry_comment_server.writes as writes
+from lbry_comment_server.settings import config
+from lbry_comment_server.handles import api_endpoint
 
 
-def add_routes(app: web.Application):
+async def setup_db_schema(app):
+    helpers.setup_database(app['db_path'])
+
+
+async def close_comment_scheduler(app):
+    await app['comment_scheduler'].close()
+
+
+def create_app(**kwargs):
+    app = web.Application()
+    app['config'] = config
+    app['db_path'] = config['PATH']['DEFAULT']
+    app['backup'] = config['PATH']['BACKUP']
+    app.on_startup.append(setup_db_schema)
+    app.on_shutdown.append(close_comment_scheduler)
+    aiojobs.aiohttp.setup(app, **kwargs)
     app.add_routes([web.post('/api', api_endpoint)])
+    return app
 
 
-class CommentServer:
-    def __init__(self, port=2903):
-        self.port = port
-        self.app = web.Application(debug=True)
-        self.app.add_routes([web.post('/api', self.api)])
-        self.runner = None
-        self.server = None
-        self.db_conn = DatabaseConnection(database_dir)
+async def stop_app(runner):
+    await runner.cleanup()
 
-    def ping(self):
-        return 'pong'
 
-    methods = {
-        'ping': ping,
-        'get_claim_comments': None,
-        'get_comment_ids': None,
-        'get_comments_by_id': None,
-        'create_comment': None
-    }
-
-    __db_methods = {
-        'get_claim_comments',
-        'get_comment_ids',
-        'get_comments_by_id',
-        'create_comment'
-    }
-
-    def process_json(self, body) -> dict:
-        response = {'jsonrpc': '2.0', 'id': body['id']}
-        if body['method'] in self.methods:
-            method = body['method']
-            params = body.get('params', {})
+async def run_app(app, duration=3600):
+    app['comment_scheduler'] = await writes.create_comment_scheduler()
+    app['writer'] = writes.DatabaseWriter(config['PATH']['DEFAULT'])
+    runner = None
     try:
-                if method in self.__db_methods:
-                    result = self.db_conn.__getattribute__(method).__call__(**params)
-                else:
-                    result = self.methods[method](self, **params)
-                response['result'] = result
-            except TypeError as te:
-                print(te)
-                response['error'] = ERRORS['INVALID_PARAMS']
-        else:
-            response['error'] = ERRORS['UNKNOWN']
-        return response
-
-    async def _start(self):
-        self.db_conn.obtain_connection()
-        self.runner = web.AppRunner(self.app)
-        await self.runner.setup()
-        self.server = web.TCPSite(self.runner, 'localhost', self.port)
-        await self.server.start()
-
-    async def _stop(self):
-        self.db_conn.connection.close()
-        await self.runner.cleanup()
-
-    async def run(self, max_timeout=3600):
-        try:
-            await self._start()
-            await asyncio.sleep(max_timeout)
+        runner = web.AppRunner(app)
+        await runner.setup()
+        site = web.TCPSite(runner, config['HOST'], config['PORT'])
+        await site.start()
+        await asyncio.sleep(duration)
     except asyncio.CancelledError:
         pass
     finally:
-            await self._stop()
-
-    async def api(self, request):
-        try:
-            body = await request.json()
-            if type(body) is list or type(body) is dict:
-                if type(body) is list:  # batch request
-                    response = [self.process_json(part) for part in body]
-                else:  # single rpc request
-                    response = self.process_json(body)
-                return web.json_response(response)
-            else:
-                return web.json_response({'error': ERRORS['UNKNOWN']})
-        except json.decoder.JSONDecodeError as jde:
-            return web.json_response({
-                'error': {'message': jde.msg, 'code': -1}
-            })
-
+        await stop_app(runner)
 
 
 if __name__ == '__main__':
-    app = CommentServer()
-    asyncio.run(app.run())
+    appl = create_app(close_timeout=5.0)
+    asyncio.run(run_app(appl))