// Copyright The OpenTelemetry Authors
// SPDX-License-Identifier: Apache-2.0

package skywalkingexporter // import "github.com/open-telemetry/opentelemetry-collector-contrib/exporter/skywalkingexporter"

import (
	"context"

	"go.opentelemetry.io/collector/component"
	"go.opentelemetry.io/collector/config/configgrpc"
	"go.opentelemetry.io/collector/consumer"
	"go.opentelemetry.io/collector/exporter"
	"go.opentelemetry.io/collector/exporter/exporterhelper"

	"github.com/open-telemetry/opentelemetry-collector-contrib/exporter/skywalkingexporter/internal/metadata"
)

// NewFactory creates a factory for Skywalking exporter.
func NewFactory() exporter.Factory {
	return exporter.NewFactory(
		metadata.Type,
		createDefaultConfig,
		exporter.WithLogs(createLogsExporter, metadata.LogsStability),
		exporter.WithMetrics(createMetricsExporter, metadata.MetricsStability))
}

func createDefaultConfig() component.Config {
	return &Config{
		RetrySettings:   exporterhelper.NewDefaultRetrySettings(),
		QueueSettings:   exporterhelper.NewDefaultQueueSettings(),
		TimeoutSettings: exporterhelper.NewDefaultTimeoutSettings(),
		GRPCClientSettings: configgrpc.GRPCClientSettings{
			// We almost read 0 bytes, so no need to tune ReadBufferSize.
			WriteBufferSize: 512 * 1024,
		},
		NumStreams: 2,
	}
}

func createLogsExporter(
	ctx context.Context,
	set exporter.CreateSettings,
	cfg component.Config,
) (exporter.Logs, error) {
	oCfg := cfg.(*Config)
	oce := newLogsExporter(ctx, oCfg, set.TelemetrySettings)
	return exporterhelper.NewLogsExporter(
		ctx,
		set,
		cfg,
		oce.pushLogs,
		exporterhelper.WithCapabilities(consumer.Capabilities{MutatesData: false}),
		exporterhelper.WithRetry(oCfg.RetrySettings),
		exporterhelper.WithQueue(oCfg.QueueSettings),
		exporterhelper.WithTimeout(oCfg.TimeoutSettings),
		exporterhelper.WithStart(oce.start),
		exporterhelper.WithShutdown(oce.shutdown),
	)
}

func createMetricsExporter(ctx context.Context, set exporter.CreateSettings, cfg component.Config) (exporter.Metrics, error) {
	oCfg := cfg.(*Config)
	oce := newMetricsExporter(ctx, oCfg, set.TelemetrySettings)
	return exporterhelper.NewMetricsExporter(
		ctx,
		set,
		cfg,
		oce.pushMetrics,
		exporterhelper.WithCapabilities(consumer.Capabilities{MutatesData: false}),
		exporterhelper.WithRetry(oCfg.RetrySettings),
		exporterhelper.WithQueue(oCfg.QueueSettings),
		exporterhelper.WithTimeout(oCfg.TimeoutSettings),
		exporterhelper.WithStart(oce.start),
		exporterhelper.WithShutdown(oce.shutdown))
}