flavors config

gistfile1.txt

WEB CONFIG

flavor.dart:

```
import 'package:flutter/foundation.dart';
import 'package:flutter_dotenv/flutter_dotenv.dart';
import 'package:package_info_plus/package_info_plus.dart';
import 'package:today/models/enums.dart';

class Flavor {
  static FlavorType? selectedFlavor;

  static Future<FlavorType> selected() async {
    // cache performance enhancement
    // if (_selected != null) {
    //   return _selected!;
    // }

    final packageInfo = await PackageInfo.fromPlatform();
    await dotenv.load(fileName: "lib/dotenv");

    if (packageInfo.packageName == dotenv.get('PACKAGE_NAME_DEV')) {
      selectedFlavor = FlavorType.dev;
    } else if (packageInfo.packageName == dotenv.get('PACKAGE_NAME_LIVE')) {
      selectedFlavor = FlavorType.live;
      // web
    } else if (kIsWeb) {
      const environmentParameter = String.fromEnvironment('FLAVOR');
      switch (environmentParameter) {
        case 'dev':
          selectedFlavor = FlavorType.dev;
        case 'live':
          selectedFlavor = FlavorType.live;
        default:
          throw Exception("Unknown environment $environmentParameter");
      }
    }

    return selectedFlavor!;
  }
}
```

app_state.dart:

```
Future<void> initializeSelectedFlavor() async {
    final selectedFlavor = await Flavor.selected();
    debugPrint("Connecting to ${selectedFlavor.name} environment (${selectedFlavor.baseUrl})...");

    await dotenv.load(fileName: "lib/dotenv");
    switch (selectedFlavor) {
      case FlavorType.dev:
        await Firebase.initializeApp(name: kIsWeb ? null : 'dev', options: dev.DefaultFirebaseOptions.currentPlatform);
        await MixpanelService.initMixpanel(dotenv.get('MIXPANEL_TOKEN_DEV'));
        break;
      case FlavorType.live:
        await Firebase.initializeApp(name: kIsWeb ? null : 'live', options: live.DefaultFirebaseOptions.currentPlatform);
        await MixpanelService.initMixpanel(dotenv.get('MIXPANEL_TOKEN_LIVE'));

        break;
      default:
        throw Exception("Unknown environment $selectedFlavor");
    }

    listenToAuthChanges();
  }
```

launch.json:

```
{
    // Use IntelliSense to learn about possible attributes.
    // Hover to view descriptions of existing attributes.
    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
    "version": "0.2.0",
    "configurations": [
        {
            "name": "dev (debug mode)",
            "request": "launch",
            "type": "dart",
            "args": [
                "--flavor",
                "dev",
                "--dart-define",
                "FLAVOR=dev"
            ]
        },
        {
            "name": "dev (profile mode)",
            "request": "launch",
            "type": "dart",
            "flutterMode": "profile",
            "args": [
                "--flavor",
                "dev",
                "--dart-define",
                "FLAVOR=dev"
            ]
        },
        {
            "name": "dev (release mode)",
            "request": "launch",
            "type": "dart",
            "flutterMode": "release",
            "args": [
                "--flavor",
                "dev",
                "--dart-define",
                "FLAVOR=dev"
            ]
        },
        {
            "name": "live (debug mode)",
            "request": "launch",
            "type": "dart",
            "args": [
                "--flavor",
                "live",
                "--dart-define",
                "FLAVOR=live"
            ]
        },
        {
            "name": "live (profile mode)",
            "request": "launch",
            "type": "dart",
            "flutterMode": "profile",
            "args": [
                "--flavor",
                "live",
                "--dart-define",
                "FLAVOR=live"
            ]
        },
        {
            "name": "live (release mode)",
            "request": "launch",
            "type": "dart",
            "flutterMode": "release",
            "args": [
                "--flavor",
                "live",
                "--dart-define",
                "FLAVOR=live"
            ]
        },
    ]
}
```

FIREBASE CONFIG
# 1. Create flavor firebase project (e.g. app-dev) by going to firebase console
# 2. Add firebase to flutter app with CLI instructions by changing `my-app` & also `firebase_options_dev`:
```
flutterfire config \
  --project=my-app-dev \
  --out=lib/firebase_options_dev.dart \
  --ios-bundle-id=com.company.my-app.dev \
  --macos-bundle-id=com.company.my-app.dev \
  --android-package-name=com.company.my-app.dev
```

when uploading to dev firebase hosting:
1. flutter build web --dart-define FLAVOR=dev
2. firebase use dev
3. firebase deploy

when uploading to live firebase hosting:
1. flutter build web --dart-define FLAVOR=live
2. firebase use live
3. firebase deploy

# src: https://yfujiki.medium.com/best-practice-with-flavors-in-flutter-development-16d2cbbf5959
# alt src: https://codewithandrea.com/articles/flutter-flavors-for-firebase-apps/