package gateway

import (
	"context"
	"io"
	"log/slog"
	"testing"

	"git.yeij.top/AskaEth/Cyrene_v2/internal/runtime/history"
	"git.yeij.top/AskaEth/Cyrene_v2/internal/runtime/loop"
	"git.yeij.top/AskaEth/Cyrene_v2/internal/runtime/model"
)

// moodRunner is a TurnRunner that settles one turn with a fixed result, so the
// test can assert the mood the loop reported is what gets persisted.
type moodRunner struct {
	mood string
}

func (m moodRunner) Run(_ context.Context, _ string, _ []model.Message, _ loop.SessionEnv) (*loop.Result, error) {
	return &loop.Result{Text: "在的呀♪", Steps: 1, StopReason: "stop", Mood: m.mood}, nil
}

// TestOrchestratorPersistsTurnMood locks the mood column end to end on the Web
// path: the mood the loop's turn-boundary hook reported lands on the persisted
// assistant message (design/16 §3.3 `mode/mood/thinking`), so the DTO,
// `message_persisted` and history replay carry real data instead of an always
// empty mood. The user message keeps an empty mood (design/16 §3.3 assigns the
// mood to the assistant reply).
func TestOrchestratorPersistsTurnMood(t *testing.T) {
	t.Parallel()
	hist := &fakeHistory{}
	o := NewOrchestrator(OrchestratorOptions{
		Run:     moodRunner{mood: "happy"}.Run,
		Log:     slog.New(slog.NewTextHandler(io.Discard, nil)),
		History: hist,
	})

	sr, res := o.SubmitSync(context.Background(), "web", []model.Message{userMsg("谢谢你")}, loop.OwnerEnv())
	if !sr.Accepted || res == nil {
		t.Fatalf("submit = %+v res=%v, want accepted with a result", sr, res)
	}
	recs := hist.records()
	if len(recs) != 2 {
		t.Fatalf("appends = %d, want 2 (user + assistant)", len(recs))
	}
	if recs[1].Role != history.RoleAssistant || recs[1].Mood != "happy" {
		t.Fatalf("assistant record = %+v, want Mood happy", recs[1])
	}
	wire := toHistoryMessage(recs[1])
	if wire.Mood != "happy" {
		t.Fatalf("wire mood = %q, want happy (message_persisted payload)", wire.Mood)
	}
	if recs[0].Mood != "" {
		t.Fatalf("user message mood = %q, want empty", recs[0].Mood)
	}
}

// TestOrchestratorPersistsEmptyMoodWhenUntracked locks the honest degrade: with no
// emotion tracking (no hook wired, so Result.Mood is empty) the stored mood stays
// empty rather than being fabricated.
func TestOrchestratorPersistsEmptyMoodWhenUntracked(t *testing.T) {
	t.Parallel()
	hist := &fakeHistory{}
	o := NewOrchestrator(OrchestratorOptions{
		Run:     moodRunner{mood: ""}.Run,
		Log:     slog.New(slog.NewTextHandler(io.Discard, nil)),
		History: hist,
	})
	if _, res := o.SubmitSync(context.Background(), "web", []model.Message{userMsg("你好")}, loop.OwnerEnv()); res == nil {
		t.Fatal("sync result is nil")
	}
	recs := hist.records()
	if len(recs) != 2 {
		t.Fatalf("appends = %d, want 2", len(recs))
	}
	if recs[1].Mood != "" {
		t.Fatalf("assistant mood = %q, want empty", recs[1].Mood)
	}
}

// TestServerBroadcastMood locks the `mood` frame the frontend's mood handler reads
// (design/07 §3): the type is `mood`, data.mood is the label, and the persona id /
// affection ride along as extra detail.
func TestServerBroadcastMood(t *testing.T) {
	t.Parallel()
	env := newEnv(t, nil, false)
	c := newFakeConn(env.srv.hub, 32)
	env.srv.hub.register(c)

	env.srv.BroadcastMood("cyrene", "happy", 60)
	ev := readFakeFrame(t, c)
	if ev.Type != "mood" {
		t.Fatalf("frame type = %q, want mood (frame=%+v)", ev.Type, ev)
	}
	data, ok := ev.Data.(map[string]any)
	if !ok || data["mood"] != "happy" || data["personaId"] != "cyrene" {
		t.Fatalf("frame data = %+v, want {mood:happy,personaId:cyrene}", ev.Data)
	}
	if got, ok := data["affection"].(float64); !ok || got != 60 {
		t.Fatalf("frame affection = %v, want 60", data["affection"])
	}
}