package gateway

import (
	"context"
	"testing"

	capreg "git.yeij.top/AskaEth/Cyrene_v2/internal/capability/registry"
)

// testChannel is a bare sdk.Channel used to exercise findChannel resolution.
type testChannel struct{ name string }

func (t testChannel) Name() string { return t.name }
func (t testChannel) Connect(context.Context) error {
	return nil
}
func (t testChannel) Disconnect(context.Context) error { return nil }
func (t testChannel) IsConnected() bool                 { return false }
func (t testChannel) HealthCheck(context.Context) error { return nil }

// TestFindChannelExactMatch prefers an exact adapter name over a bare-name match.
func TestFindChannelExactMatch(t *testing.T) {
	reg := capreg.New()
	_ = reg.Register(capreg.Capability{Name: "kook:conf0", Kind: capreg.KindChannel, Value: testChannel{name: "kook:conf0"}})
	_ = reg.Register(capreg.Capability{Name: "telegram:conf0", Kind: capreg.KindChannel, Value: testChannel{name: "telegram:conf0"}})
	ch, ok := findChannel(reg, "kook:conf0")
	if !ok || ch.Name() != "kook:conf0" {
		t.Fatalf("exact kook:conf0 not found, got %v/%v", ch, ok)
	}
	ch, ok = findChannel(reg, "telegram:conf0")
	if !ok || ch.Name() != "telegram:conf0" {
		t.Fatalf("exact telegram:conf0 not found, got %v/%v", ch, ok)
	}
}

// TestFindChannelBarePlatformResolvesToTokenAccount verifies a bare platform name
// ("kook") that is not an exact adapter name resolves to that platform's first
// registered account (the token-bearing one, since the empty-token bare account
// is never registered).
func TestFindChannelBarePlatformResolvesToTokenAccount(t *testing.T) {
	reg := capreg.New()
	_ = reg.Register(capreg.Capability{Name: "kook:3fc8", Kind: capreg.KindChannel, Value: testChannel{name: "kook:3fc8"}})
	ch, ok := findChannel(reg, "kook")
	if !ok || ch.Name() != "kook:3fc8" {
		t.Fatalf("bare kook should resolve to kook:3fc8, got %v/%v", ch, ok)
	}
}

// TestFindChannelUnknownOrBlank rejects a name that matches no channel.
func TestFindChannelUnknownOrBlank(t *testing.T) {
	reg := capreg.New()
	_ = reg.Register(capreg.Capability{Name: "kook:conf0", Kind: capreg.KindChannel, Value: testChannel{name: "kook:conf0"}})
	if _, ok := findChannel(reg, "unknown"); ok {
		t.Fatal("unknown name should not be found")
	}
	if _, ok := findChannel(reg, ""); ok {
		t.Fatal("blank name should not be found")
	}
	// Skipped: non-channel capabilities must not match.
	_ = reg.Register(capreg.Capability{Name: "some-tool", Kind: capreg.KindTool, Value: testChannel{name: "some-tool"}})
	if _, ok := findChannel(reg, "some-tool"); ok {
		t.Fatal("non-channel capability must not match findChannel")
	}
}