# bolt

The nuts and bolts of a Discord bots. Bolt is a wrapper for [discordgo](https://github.com/bwmarrin/discordgo) that provides very quick bootstrapping for simple Discord bots. 

## Usage
### Token
Bolt requires a Discord bot token to run, the token must be set as an environment variable labeled "DISCORD_TOKEN"

### Commands
Commands are represented by the Command struct. Any roles in the Command struct can run the command, if the Roles field is empty anyone can run the command.
```go
type Command struct {
	Trigger string        //command that triggers payload NOT including the indicator
	Payload Payload       //payload function to run when a command is detected
	Timeout time.Duration //the amount of time before command can be run again
	lastRun time.Time     //timestamp of last command run
	Roles   []string      //roles that can use command, if none are set anyone can run the command
}
```

### Payload
Payload functions are executed when a command is detected, if no errors are returned and the returned string is not empty, then the returned string is sent in reply to the command message.
```go
type Payload func(msg Message) (string, error)
```

### Example
```go
package main

import (
	"time"

	"code.jakeyoungdev.com/jake/bolt"
	_ "github.com/joho/godotenv/autoload"
)

func main() {
	//bolt defaults the command indicator to '.' however that can be changed with the options
	//Example: bolt.New(bolt.WithIndicator('!')) would support commands like !ping
	b := bolt.New()

	b.AddCommands(
        // .ping can be run at any time by anyone and will respond with 'pong'
		bolt.Command{
			Trigger: "ping",
			Payload: func(msg bolt.Message) (string, error) {
				return "pong", nil //any strings returned will be sent in response to the Discord message
			},
		},
        // .time can be run every 25 seconds by anyone and will respond with 'yer'
		bolt.Command{
			Trigger: "time",
			Payload: func(msg bolt.Message) (string, error) {
				return "yer", nil
			},
			Timeout: time.Second * 25,
		},
        // .role can be run every 10 seconds by anyone with the 'admin' role and will respond with 'hi'
        bolt.Command{
            Trigger: "role",
            Payload: func(msg bolt.Message) (string, error) {
				return "hi", nil
			},
            Timeout: time.Second * 10,
            Roles: []string{"admin"},
        },
	)

	//start is a blocking call that handles safe-shutdown, all configuration and setup should be done before calling Start()
	err := b.Start()
	if err != nil {
		panic(err)
	}
}
```

## Development
bolt is in development at the moment and may break occasionally before a v1 release