package promptkit

import (
	"encoding/json"
	"fmt"
	"strings"
	"testing"

	"go.maximumdirect.net/promptkit/internal/domain"
)

func TestExchangeDetailsAndRequestConversion(t *testing.T) {
	var nilExchange *Exchange
	if got := nilExchange.Details(); got.RunID != "" || got.Messages != nil {
		t.Fatalf("nil details = %#v", got)
	}
	if _, err := toDomainRunRequest(RunRequest{ContinueFrom: &Exchange{}}); err == nil {
		t.Fatal("empty exchange accepted")
	}
	history := domain.CaptureExchange(nil, "source", []domain.RenderedMessage{{Role: domain.RoleUser, Content: "private", CacheControl: &domain.CacheControl{Type: domain.CacheControlEphemeral, TTL: "1h"}}}, "answer")
	handle := &Exchange{internal: history}
	request, err := toDomainRunRequest(RunRequest{ContinueFrom: handle})
	if err != nil || request.ContinueFrom != history || !request.CaptureExchange {
		t.Fatalf("request = %#v, error = %v", request, err)
	}
	details := handle.Details()
	details.Messages[0].CacheControl.TTL = "changed"
	if handle.Details().Messages[0].CacheControl.TTL != "1h" {
		t.Fatal("details changed exchange")
	}
	if strings.Contains(fmt.Sprintf("%v %#v", handle, handle), "private") {
		t.Fatal("format exposed history")
	}
	encoded, err := json.Marshal(PreparedRun{ParentRunID: "source"})
	if err != nil || !strings.Contains(string(encoded), `"parent_run_id":"source"`) {
		t.Fatalf("prepared JSON = %s, %v", encoded, err)
	}
}