package squadintent

import (
	"context"
	"strings"
	"testing"
	"testing/fstest"

	"agent-intent/intent"
	"agent-squad/squad"
)

// catalogFS：带槽位（label/question/enum）的可调用能力 + 守卫。
func catalogFS() fstest.MapFS {
	return fstest.MapFS{"intents.json": &fstest.MapFile{Data: []byte(`{
	  "intents": [
	    {"id": "guard.config_change", "domain": "guard", "version": 1,
	     "matcher": {"includes_any": ["系统配置"]}},
	    {"id": "demo.run.status_query", "domain": "demo", "version": 1,
	     "description": "查询运行进度",
	     "matcher": {"includes_any": ["进度"]},
	     "handler": "taskrun.query_status",
	     "slots": [
	       {"key": "run_id", "required": true, "pattern": "(run-\\d+)",
	        "label": "运行编号", "question": "要查询哪个运行？请提供 run 编号"}
	     ]}
	  ]
	}`)}}
}

func newCatalogGate(t *testing.T) *Gate {
	t.Helper()
	g, err := New(context.Background(), Options{
		IntentOptions: intent.Options{GuardDomains: []string{"guard"}, ProtectedDomains: []string{"guard"}},
		FS:            catalogFS(),
		Roots:         []string{"."},
	})
	if err != nil {
		t.Fatal(err)
	}
	return g
}

func TestGateCatalogMapsSpecsAndSlots(t *testing.T) {
	g := newCatalogGate(t)
	c := g.Catalog()
	if c == nil || len(c.Specs) != 1 {
		t.Fatalf("catalog specs: %+v", c)
	}
	view, ok := c.Get("demo.run.status_query")
	if !ok || view.Handler != "taskrun.query_status" || len(view.RequiredSlots) != 1 || view.RequiredSlots[0] != "run_id" {
		t.Fatalf("view: %+v", view)
	}
	if len(view.Slots) != 1 || view.Slots[0].Question == "" || view.Slots[0].Label != "运行编号" {
		t.Fatalf("slot view: %+v", view.Slots)
	}
	if _, ok := c.Get("guard.config_change"); ok {
		t.Fatal("guard spec must not appear in catalog")
	}
	if !strings.Contains(c.Markdown, "提问建议：要查询哪个运行") {
		t.Fatalf("markdown missing question: %s", c.Markdown)
	}
}

func TestRunnerDispatchesToHandlerAndFailsClosed(t *testing.T) {
	g := newCatalogGate(t)
	var got squad.IntentStep
	runner := g.Runner(map[string]IntentHandler{
		"taskrun.query_status": func(ctx context.Context, step squad.IntentStep) (string, error) {
			got = step
			return "# 进度\n\nrun-42 已完成，正文满足最小长度要求用于质检演示。\n", nil
		},
	})
	res, err := runner.Run(context.Background(), squad.IntentStep{
		IntentID: "demo.run.status_query", Slots: map[string]string{"run_id": "run-42"},
		Targets: []string{"output.md"},
	})
	if err != nil || res == nil || !res.Success {
		t.Fatalf("run: %+v %v", res, err)
	}
	if got.Slots["run_id"] != "run-42" || string(res.Patches["output.md"]) == "" {
		t.Fatalf("handler dispatch: %+v", got)
	}

	// 未知意图与未注册 handler：fail-closed（无 handler 的 runner 拒绝执行）。
	if _, err := runner.Run(context.Background(), squad.IntentStep{IntentID: "demo.nope"}); err == nil {
		t.Fatal("expected unknown intent error")
	}
	bare := g.Runner(nil)
	if _, err := bare.Run(context.Background(), squad.IntentStep{IntentID: "demo.run.status_query", Slots: map[string]string{"run_id": "run-1"}}); err == nil {
		t.Fatal("expected unregistered handler error")
	} else if !strings.Contains(err.Error(), "fail-closed") {
		t.Fatalf("error: %v", err)
	}
}

func TestEchoRunnerMaterializesCall(t *testing.T) {
	g := newCatalogGate(t)
	res, err := g.EchoRunner().Run(context.Background(), squad.IntentStep{
		IntentID: "demo.run.status_query", Slots: map[string]string{"run_id": "run-7"},
		Targets: []string{"output.md"}, Title: "查询进度",
	})
	if err != nil || !res.Success {
		t.Fatalf("echo run: %+v %v", res, err)
	}
	text := string(res.Patches["output.md"])
	for _, want := range []string{"EchoRunner", "demo.run.status_query", "run-7", "未真实执行"} {
		if !strings.Contains(text, want) {
			t.Fatalf("echo text missing %q: %s", want, text)
		}
	}
}

func TestNilGateCatalogAndRunner(t *testing.T) {
	var g *Gate
	if g.Catalog() != nil {
		t.Fatal("nil gate catalog must be nil")
	}
	if _, err := g.EchoRunner().Run(context.Background(), squad.IntentStep{IntentID: "x"}); err == nil {
		t.Fatal("nil gate runner must fail-closed")
	}
}

func TestR2GateReloadSeesNewIntent(t *testing.T) {
	fsys := fstest.MapFS{"intents.json": &fstest.MapFile{Data: []byte(`{"intents":[{"id":"demo.old","domain":"demo","version":1,"matcher":{"includes_any":["旧"]}}]}`)}}
	g, err := New(context.Background(), Options{
		IntentOptions: intent.Options{},
		FS:            fsys,
		Roots:         []string{"."},
	})
	if err != nil {
		t.Fatal(err)
	}
	if _, ok := g.Snapshot().SpecByID("demo.new"); ok {
		t.Fatal("new spec exists before reload")
	}
	fsys["intents.json"].Data = []byte(`{"intents":[{"id":"demo.old","domain":"demo","version":1,"matcher":{"includes_any":["旧"]}},{"id":"demo.new","domain":"demo","version":1,"matcher":{"includes_any":["新"]}}]}`)
	if _, err := g.Reload(context.Background()); err != nil {
		t.Fatal(err)
	}
	if _, ok := g.Snapshot().SpecByID("demo.new"); !ok {
		t.Fatal("reload did not publish demo.new")
	}
}