import 'package:http/testing.dart';
import 'dart:convert';
import 'dart:core';
import 'dart:math';
import 'package:http/http.dart';

class FakeMatrixApi extends MockClient {
  FakeMatrixApi()
      : super((request) async {
    // Collect data from Request
    final String action = request.url.path.split("/_matrix")[1];
    final String method = request.method;
    final dynamic data =
    method == "GET" ? request.url.queryParameters : request.body;
    var res = {};

    //print("$method request to $action with Data: $data");

    // Sync requests with timeout
    if (data is Map<String, dynamic> && data["timeout"] is String) {
      await new Future.delayed(Duration(seconds: 5));
    }

    // Call API
    if (api.containsKey(method) && api[method].containsKey(action))
      res = api[method][action](data);
    else
      res = {
        "errcode": "M_UNRECOGNIZED",
        "error": "Unrecognized request"
      };

    return Response(json.encode(res), 100);
  });

  static final Map<String, Map<String, dynamic>> api = {
    "GET": {
      "/client/versions": (var req) => {
        "versions": ["r0.0.1", "r0.1.0", "r0.2.0", "r0.3.0", "r0.4.0"],
        "unstable_features": {"m.lazy_load_members": true},
      },
      "/client/r0/login": (var req) => {
        "flows": [
          {"type": "m.login.password"}
        ]
      },
      "/client/r0/sync": (var req) => {
        "next_batch": Random().nextDouble().toString(),
        "presence": {
          "events": [
            {
              "sender": "@alice:example.com",
              "type": "m.presence",
              "content": {"presence": "online"}
            }
          ]
        },
        "account_data": {
          "events": [
            {
              "type": "org.example.custom.config",
              "content": {"custom_config_key": "custom_config_value"}
            }
          ]
        },
        "to_device": {
          "events": [
            {
              "sender": "@alice:example.com",
              "type": "m.new_device",
              "content": {
                "device_id": "XYZABCDE",
                "rooms": ["!726s6s6q:example.com"]
              }
            }
          ]
        },
        "rooms": {
          "join": {
            "!726s6s6q:example.com": {
              "unread_notifications": {
                "highlight_count": 2,
                "notification_count": 2,
              },
              "state": {
                "events": [
                  {
                    "sender": "@alice:example.com",
                    "type": "m.room.member",
                    "state_key": "@alice:example.com",
                    "content": {"membership": "join"},
                    "origin_server_ts": 1417731086795,
                    "event_id": "66697273743031:example.com"
                  }
                ]
              },
              "timeline": {
                "events": [
                  {
                    "sender": "@bob:example.com",
                    "type": "m.room.member",
                    "state_key": "@bob:example.com",
                    "content": {"membership": "join"},
                    "prev_content": {"membership": "invite"},
                    "origin_server_ts": 1417731086795,
                    "event_id": "7365636s6r6432:example.com"
                  },
                  {
                    "sender": "@alice:example.com",
                    "type": "m.room.message",
                    "txn_id": "1234",
                    "content": {"body": "I am a fish", "msgtype": "m.text"},
                    "origin_server_ts": 1417731086797,
                    "event_id": "74686972643033:example.com"
                  }
                ],
                "limited": true,
                "prev_batch": "t34-23535_0_0"
              },
              "ephemeral": {
                "events": [
                  {
                    "type": "m.typing",
                    "content": {
                      "user_ids": ["@alice:example.com"]
                    }
                  }
                ]
              },
              "account_data": {
                "events": [
                  {
                    "type": "m.tag",
                    "content": {
                      "tags": {
                        "work": {"order": 1}
                      }
                    }
                  },
                  {
                    "type": "org.example.custom.room.config",
                    "content": {"custom_config_key": "custom_config_value"}
                  }
                ]
              }
            }
          },
          "invite": {
            "!696r7674:example.com": {
              "invite_state": {
                "events": [
                  {
                    "sender": "@alice:example.com",
                    "type": "m.room.name",
                    "state_key": "",
                    "content": {"name": "My Room Name"}
                  },
                  {
                    "sender": "@alice:example.com",
                    "type": "m.room.member",
                    "state_key": "@bob:example.com",
                    "content": {"membership": "invite"}
                  }
                ]
              }
            }
          },
          "leave": {
            "!5345234234:example.com": {
              "timeline": {"events": []}
            },
          },
        }
      },
    },
    "POST": {
      "/client/r0/login": (var req) => {
        "user_id": "@test:fakeServer.notExisting",
        "access_token": "abc123",
        "device_id": "GHTYAJCE"
      },
      "/client/r0/logout": (var reqI) => {},
      "/client/r0/logout/all": (var reqI) => {},
    },
    "PUT": {},
    "DELETE": {
      "/unknown/token": (var req) => {
        "errcode": "M_UNKNOWN_TOKEN"
      },
    },
  };
}