package recorder

import (
	"context"
	"sync"

	"go.opentelemetry.io/otel/metric"
	"go.opentelemetry.io/otel/trace"

	"gitea.libretechconsulting.com/rmcguire/go-app/pkg/otel"

	"gitea.libretechconsulting.com/rmcguire/ambient-local-exporter/pkg/weather/recorder/recorders"
)

type WeatherRecorder struct {
	recorder recorders.Recorder
	ctx      context.Context
	tracer   trace.Tracer
	meter    metric.Meter
	*sync.RWMutex
}

type Opts struct {
	Ctx      context.Context
	Recorder recorders.Recorder // If nil, will use memory recorder
	KeepLast int
}

func MustNewWeatherRecorder(opts *Opts) *WeatherRecorder {
	if opts.KeepLast < 1 {
		opts.KeepLast = 1
	}

	if opts.Recorder == nil {
		panic("no recorder provided")
	}

	opts.Recorder.Init(opts.Ctx, &recorders.RecorderOpts{
		RetainLast: opts.KeepLast,
		BaseCtx:    opts.Ctx,
	})

	return &WeatherRecorder{
		ctx:      opts.Ctx,
		recorder: opts.Recorder,
		tracer:   otel.GetTracer(opts.Ctx, "weatherRecorder"),
		meter:    otel.GetMeter(opts.Ctx, "weatherRecorder"),
		RWMutex:  &sync.RWMutex{},
	}
}