package control

import (
	"bytes"
	"context"
	"encoding/json"
	"io"
	"net/http"
	"net/http/httptest"
	"path/filepath"
	"testing"
	"time"

	rvboxv1 "github.com/rvbox/rvbox/gen/go/rvbox/v1"
	"github.com/rvbox/rvbox/internal/server/store"
	"google.golang.org/protobuf/encoding/protojson"
)

func TestJSONRPCUnaryMatchesControlService_HP_CTL_15(t *testing.T) {
	persistence, err := store.Open(context.Background(), store.Options{DataDir: filepath.Join(t.TempDir(), "state"), BusyTimeout: time.Second})
	if err != nil {
		t.Fatal(err)
	}
	defer persistence.Close()
	registerControlClient(t, persistence, "win-a", rvboxv1.Platform_PLATFORM_WINDOWS, rvboxv1.ShellType_SHELL_POWERSHELL, 9)
	service, err := NewService(Options{Store: persistence, CursorKey: bytesKey()})
	if err != nil {
		t.Fatal(err)
	}
	handler := httptest.NewServer(NewJSONRPCHandler(service, 1<<20))
	defer handler.Close()
	requestID := fixedIssue(0xaf).String()
	params, err := protojson.Marshal(&rvboxv1.RunCommandRequest{TargetClientId: "win-a", RequestId: requestID, Spec: &rvboxv1.ExecutionSpec{Source: &rvboxv1.ExecutionSpec_CommandText{CommandText: "echo rpc"}}})
	if err != nil {
		t.Fatal(err)
	}
	body, _ := json.Marshal(map[string]any{"jsonrpc": "2.0", "id": 7, "method": "runCommand", "params": json.RawMessage(params)})
	response, err := http.Post(handler.URL, "application/json", bytes.NewReader(body))
	if err != nil {
		t.Fatal(err)
	}
	defer response.Body.Close()
	encoded, _ := io.ReadAll(response.Body)
	var envelope struct {
		Result json.RawMessage `json:"result"`
		Error  json.RawMessage `json:"error"`
	}
	if err := json.Unmarshal(encoded, &envelope); err != nil || len(envelope.Error) != 0 {
		t.Fatalf("JSON-RPC response = %s, %v", encoded, err)
	}
	result := &rvboxv1.RunCommandResponse{}
	if err := protojson.Unmarshal(envelope.Result, result); err != nil || result.GetIssueUuid() != requestID {
		t.Fatalf("JSON-RPC result = %s, %v", envelope.Result, err)
	}
	unknown, _ := json.Marshal(map[string]any{"jsonrpc": "2.0", "id": "x", "method": "notARealMethod", "params": map[string]any{}})
	unknownResponse, err := http.Post(handler.URL, "application/json", bytes.NewReader(unknown))
	if err != nil {
		t.Fatal(err)
	}
	defer unknownResponse.Body.Close()
	unknownBody, _ := io.ReadAll(unknownResponse.Body)
	if !bytes.Contains(unknownBody, []byte(`-32601`)) {
		t.Fatalf("unknown method response = %s", unknownBody)
	}
}

func TestJSONRPCRejectsOversizeAndMalformedRequests_BH_CTL_16(t *testing.T) {
	persistence, err := store.Open(context.Background(), store.Options{DataDir: filepath.Join(t.TempDir(), "state"), BusyTimeout: time.Second})
	if err != nil {
		t.Fatal(err)
	}
	defer persistence.Close()
	service, err := NewService(Options{Store: persistence, CursorKey: bytesKey()})
	if err != nil {
		t.Fatal(err)
	}
	handler := httptest.NewServer(NewJSONRPCHandler(service, 16))
	defer handler.Close()
	response, err := http.Post(handler.URL, "application/json", bytes.NewReader([]byte(`{"jsonrpc":"2.0","id":1,"method":"listClients","params":{}}`)))
	if err != nil {
		t.Fatal(err)
	}
	defer response.Body.Close()
	body, _ := io.ReadAll(response.Body)
	if !bytes.Contains(body, []byte(`-32600`)) {
		t.Fatalf("oversize response = %s", body)
	}
	malformed, err := http.Post(handler.URL, "application/json", bytes.NewReader([]byte(`{"jsonrpc":"2.0","id":1,"method":"listClients","params":{}}`[:16])))
	if err != nil {
		t.Fatal(err)
	}
	defer malformed.Body.Close()
	malformedBody, _ := io.ReadAll(malformed.Body)
	if !bytes.Contains(malformedBody, []byte(`-32700`)) {
		t.Fatalf("malformed response = %s", malformedBody)
	}
}