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How to Start

Prerequisites

Make sure you have the latest .NET Core and ASP.NET installed. You can find install instructions here. You'll also need to have docker installed.

About our configuration

For configuration, we use a combination of the standard appsettings.json file and secrets.json. Non-sensitive information is stored in the appsettings.json file and sensitive information is stored in place outside of the git repository. (for more details see documentation)

App settings

We use four different appsetings files.

  • appsetings.json: common configuration for all instances.
  • appsetings.BotDev.json: configuration for test server discord
  • appsetings.CvutFit.json: configuration for main FIT CTU discord server
  • appsetings.Development.json: configuration for local development.

Secrets

Example file structure:

secrets.json:

{
    "CVUT:ClientId": "<client id>",
    "CVUT:ClientSecret": "<client secret>",
    "CVUT:ServiceId": "<service id>",
    "CVUT:ServiceSecret": "<service secret>",
    "DATABASE_URL": "Host=localhost;Database=HonzaBotner;Username=honza-bot;Password=postgres",
    "Discord:Token": "<discord bot token>"
}

CVUT id and secret can be found on auth manager. In case you don't have a project there, you will need to create one and then create an app in it (Web application). This project also needs to have access to the following services:

  • urn:ctu:oauth:umapi.read
  • cvut:umapi:read

Discord token can be found on Discord developer portal.

Database URL in the example is working with provided docker image which can be found in compose file.

Initial configuration

To be able to run the bot locally you need to setup some configs.

  • Set the Discord token of your test app and the DATABASE_URL parameter in secrets.json the other secrets are not needed for your average development needs.
  • Change Discord.GuildId in appsettings.Development.json to the id of your test guild.
  • Change CustomVoiceOptions.ClickChannelId in appsettings.Development.json to an id of a voice channel in your test guild.

Database and migrations

To modify the database scheme we need to process migrations. For that, we need to install a tool that does that. This can be done by the following command:

dotnet tool install --global dotnet-ef

We can see generated files in src/HonzaBotner/Migrations. If everything is OK we can update our DB by the following command:

dotnet ef database update --project ./src/HonzaBotner

With this, we will get migration based on our code

  • All DbSet\<T> in HonzaBotnerDbContext will be used and their mappings will be applied

If we want to add migration, we will navigate to the startup project and will add migration:

cd src/HonzaBotner
dotnet ef migrations add "Name of migration"

Startup

Before starting the bot itself we will need to start DB.

If you are on Linux start the docker service using systemctl start docker

Than start the DB using the following command:

docker-compose up -d

if everything went well you will see Starting postgres-botner ... done.

After that, you can start up the project in your favorite IDE or by typing dotnet run --project ./src/HonzaBotner/.