package callflow

import (
	"context"
	"errors"

	"git.ipao.vip/rogee/go-sip/internal/ai"
)

// ApprovedPipeline is one call's immutable Agent execution. It shares the
// media sequencing with other modes without importing legacy AI snapshots.
type ApprovedPipeline interface {
	Open(context.Context) ([]byte, error)
	RunTurn(context.Context, []byte) (ai.TurnResult, error)
}

func ExecuteApproved(ctx context.Context, session MediaSession, mode ai.Mode, pipeline ApprovedPipeline, capture CaptureConfig) (Result, error) {
	if pipeline == nil {
		return Result{}, errors.New("approved AI pipeline is required")
	}
	if capture.CallDuration > 0 {
		var cancel context.CancelFunc
		ctx, cancel = context.WithTimeout(ctx, capture.CallDuration)
		defer cancel()
	}
	return executeFlow(ctx, session, mode, pipeline.Open, pipeline.RunTurn, capture)
}

// ApprovedCapture hands explicit task conversation limits to the shared media
// controller. A zero field denotes an absent optional business value.
func ApprovedCapture(bound ai.CurrentBound) CaptureConfig {
	return CaptureConfig{
		FirstSpeechTimeout:    bound.Conversation.SilenceTimeout,
		CallDuration:          bound.Conversation.MaxDuration,
		EndSilence:            bound.Conversation.SilenceTimeout,
		VoiceThreshold:        1,
		MaxTurns:              bound.Conversation.MaxTurns,
		MaxPendingAudioChunks: bound.Conversation.MaxPendingAudioChunks,
	}
}