package showbridge

import (
	"fmt"
	"log/slog"
	"time"

	"github.com/jwetzell/showbridge-go/internal/config"
)

type Interval struct {
	config   config.ModuleConfig
	Duration uint32
	router   *Router
	ticker   *time.Ticker
}

func init() {
	RegisterModule(ModuleRegistration{
		Type: "gen.interval",
		New: func(config config.ModuleConfig, router *Router) (Module, error) {
			params := config.Params

			duration, ok := params["duration"]
			if !ok {
				return nil, fmt.Errorf("gen.interval requires a duration parameter")
			}

			durationNum, ok := duration.(float64)

			if !ok {
				return nil, fmt.Errorf("gen.interval duration must be number")
			}

			return &Interval{Duration: uint32(durationNum), config: config, router: router}, nil
		},
	})
}

func (i *Interval) Id() string {
	return i.config.Id
}

func (i *Interval) Type() string {
	return i.config.Type
}

func (i *Interval) Run() error {
	ticker := time.NewTicker(time.Millisecond * time.Duration(i.Duration))
	i.ticker = ticker
	defer ticker.Stop()

	for {
		select {
		case <-i.router.Context.Done():
			slog.Debug("router context done in module", "id", i.config.Id)
			return nil
		case <-ticker.C:
			if i.router != nil {
				i.router.HandleInput(i.config.Id, time.Now())
			}
		}
	}

}

func (i *Interval) Output(payload any) error {
	i.ticker.Reset(time.Millisecond * time.Duration(i.Duration))
	return nil
}