package server

import (
	"context"
	"testing"

	agentcommand "agent-command"
	"agent-system-backend/internal/cmdbus"
)

// B 类硬化红测：button 入口命中写意图时不嵌套分发（无目标命令 receipt）。
func TestSystemIntentButtonNoNestedDispatch(t *testing.T) {
	var writes int
	b := cmdbus.New(nopAudit{}, nil, nil)
	if err := b.RegisterBuiltin(agentcommand.CommandSpec{ID: "conversation.create", Title: "新建会话"},
		"/new", func(ctx context.Context, req cmdbus.Request) (any, error) {
			writes++
			return map[string]any{"ok": true}, nil
		}); err != nil {
		t.Fatal(err)
	}
	if err := b.Intents().Declare(cmdbus.Intent{
		ID: "demo.new", Phrases: []string{"新建会话"}, Command: "conversation.create", Plugin: "test",
	}); err != nil {
		t.Fatal(err)
	}

	res, err := handleSystemIntent(context.Background(), b, cmdbus.Request{
		ID: "system.intent", Entrance: "button", Owner: "alice",
		Params: map[string]any{"text": "请新建会话"},
	})
	if err != nil {
		t.Fatal(err)
	}
	m, ok := res.(map[string]any)
	if !ok || m["matched"] != true || m["dispatched"] != false {
		t.Fatalf("button match must not dispatch: %+v", res)
	}
	if writes != 0 {
		t.Fatalf("nested write command must not run, writes=%d", writes)
	}

	// chat 入口仍可嵌套分发（既有行为）
	res2, err := handleSystemIntent(context.Background(), b, cmdbus.Request{
		ID: "system.intent", Entrance: "chat", Owner: "alice",
		Params: map[string]any{"text": "请新建会话"},
	})
	if err != nil {
		t.Fatal(err)
	}
	m2, _ := res2.(map[string]any)
	if m2["dispatched"] != true || writes != 1 {
		t.Fatalf("chat entrance should nest-dispatch: %+v writes=%d", res2, writes)
	}
}

func TestSystemIntentUnmatchedCandidates(t *testing.T) {
	b := cmdbus.New(nopAudit{}, nil, nil)
	_ = b.Intents().Declare(cmdbus.Intent{
		ID: "demo.x", Phrases: []string{"特定短语"}, Command: "builtin.help", Plugin: "test",
	})
	res, err := handleSystemIntent(context.Background(), b, cmdbus.Request{
		Entrance: "button", Params: map[string]any{"text": "无关内容"},
	})
	if err != nil {
		t.Fatal(err)
	}
	m := res.(map[string]any)
	if m["matched"] != false {
		t.Fatalf("want unmatched, got %+v", res)
	}
	cands, _ := m["candidates"].([]map[string]any)
	if len(cands) != 1 {
		t.Fatalf("want 1 candidate, got %+v", m["candidates"])
	}
}