package reconcile

import (
	"testing"

	"sub2api-cn-relay-manager/internal/host/sub2api"
	"sub2api-cn-relay-manager/internal/pack"
	"sub2api-cn-relay-manager/internal/store/sqlite"
)

func TestAccountIDFromProbeSummary(t *testing.T) {
	t.Parallel()

	accountID, err := AccountIDFromProbeSummary(`{"account_id":" account_1 "}`)
	if err != nil {
		t.Fatalf("AccountIDFromProbeSummary() error = %v", err)
	}
	if accountID != "account_1" {
		t.Fatalf("accountID = %q, want account_1", accountID)
	}
	if _, err := AccountIDFromProbeSummary(`{`); err == nil {
		t.Fatal("AccountIDFromProbeSummary() error = nil, want JSON decode error")
	}
	blank, err := AccountIDFromProbeSummary("")
	if err != nil {
		t.Fatalf("AccountIDFromProbeSummary(blank) error = %v", err)
	}
	if blank != "" {
		t.Fatalf("blank accountID = %q, want empty", blank)
	}
}

func TestDiffManagedResourcesCountsMissingAndExtra(t *testing.T) {
	t.Parallel()

	missing, extra := DiffManagedResources(
		[]sqlite.ManagedResource{
			{ResourceType: "group", HostResourceID: "group_1"},
			{ResourceType: "account", HostResourceID: "account_1"},
		},
		sub2api.ManagedResourceSnapshot{
			Groups:   []sub2api.NamedResource{{ID: "group_1"}},
			Accounts: []sub2api.NamedResource{{ID: "account_2"}},
		},
	)
	if missing != 1 || extra != 1 {
		t.Fatalf("DiffManagedResources() = (%d, %d), want (1, 1)", missing, extra)
	}
}

func TestDeriveHealthyAccessStatus(t *testing.T) {
	t.Parallel()

	tests := []struct {
		name        string
		closureType string
		want        string
	}{
		{name: "subscription", closureType: accessModeSubscription, want: accessStatusSubscriptionReady},
		{name: "self-service", closureType: accessModeSelfService, want: accessStatusSelfServiceReady},
		{name: "unknown", closureType: "other", want: "unknown"},
	}
	for _, tc := range tests {
		t.Run(tc.name, func(t *testing.T) {
			if got := DeriveHealthyAccessStatus(tc.closureType); got != tc.want {
				t.Fatalf("DeriveHealthyAccessStatus(%q) = %q, want %q", tc.closureType, got, tc.want)
			}
		})
	}
}

func TestBuildManagedResourceListRequestUsesModeSpecificNames(t *testing.T) {
	t.Parallel()

	provider := pack.ProviderManifest{ProviderID: "deepseek"}
	subscriptionReq := buildManagedResourceListRequest(provider, accessModeSubscription)
	if subscriptionReq.PlanName == "" {
		t.Fatal("subscription PlanName = empty, want mode-specific plan")
	}
	if subscriptionReq.AccountNamePrefix != "deepseek-" {
		t.Fatalf("subscription AccountNamePrefix = %q, want deepseek-", subscriptionReq.AccountNamePrefix)
	}

	selfServiceReq := buildManagedResourceListRequest(provider, accessModeSelfService)
	if selfServiceReq.PlanName != "" {
		t.Fatalf("selfService PlanName = %q, want empty", selfServiceReq.PlanName)
	}
	if selfServiceReq.GroupName == subscriptionReq.GroupName {
		t.Fatalf("GroupName = %q, want different names per access mode", selfServiceReq.GroupName)
	}
}

func TestAccountValidationStatusTreatsResponsesRaceAsWarning(t *testing.T) {
	t.Parallel()

	status := accountValidationStatus(sub2api.ProbeResult{
		OK:      false,
		Status:  "failed",
		Message: "账号本身可正常使用，但当前测试接口仅支持 Responses API 路径。请直接通过实际 API 调用验证。",
	}, true)
	if status != accountStatusWarning {
		t.Fatalf("accountValidationStatus() = %q, want %q", status, accountStatusWarning)
	}
}

func TestAccountValidationStatusTreatsTransientProbeFailureAsWarning(t *testing.T) {
	t.Parallel()

	status := accountValidationStatus(sub2api.ProbeResult{
		OK:      false,
		Status:  "failed",
		Message: "API returned 503: upstream service unavailable, retry later",
	}, true)
	if status != accountStatusWarning {
		t.Fatalf("accountValidationStatus() = %q, want %q", status, accountStatusWarning)
	}
}

func TestNormalizedUniqueAccountIDs(t *testing.T) {
	t.Parallel()

	got := normalizedUniqueAccountIDs([]string{" account_1 ", "", "account_2", "account_1", "   "})
	want := []string{"account_1", "account_2"}
	if len(got) != len(want) {
		t.Fatalf("normalizedUniqueAccountIDs() len = %d, want %d; values = %v", len(got), len(want), got)
	}
	for i := range want {
		if got[i] != want[i] {
			t.Fatalf("normalizedUniqueAccountIDs()[%d] = %q, want %q; values = %v", i, got[i], want[i], got)
		}
	}
}

func TestAccessClosureTypeReturnsLatestTrimmedType(t *testing.T) {
	t.Parallel()

	if got := accessClosureType(nil); got != "" {
		t.Fatalf("accessClosureType(nil) = %q, want empty", got)
	}
	got := accessClosureType([]sqlite.AccessClosureRecord{
		{ClosureType: " subscription "},
		{ClosureType: " self_service "},
	})
	if got != accessModeSelfService {
		t.Fatalf("accessClosureType() = %q, want %q", got, accessModeSelfService)
	}
}

func TestClassifyHistoricalAccountNoiseOnlyKeepsPrefixedOutOfBatchAccounts(t *testing.T) {
	t.Parallel()

	got := classifyHistoricalAccountNoise(
		[]sqlite.ManagedResource{
			{ResourceType: "account", HostResourceID: "account_1"},
			{ResourceType: "group", HostResourceID: "group_1"},
		},
		[]sub2api.NamedResource{
			{ID: "account_1", Name: "deepseek-01"},
			{ID: "account_2", Name: "deepseek-02"},
			{ID: "account_3", Name: "other-03"},
			{ID: " ", Name: "deepseek-04"},
		},
		"deepseek-",
	)
	if len(got) != 1 {
		t.Fatalf("classifyHistoricalAccountNoise() len = %d, want 1; values = %+v", len(got), got)
	}
	if got[0].ID != "account_2" || got[0].Name != "deepseek-02" {
		t.Fatalf("classifyHistoricalAccountNoise()[0] = %+v, want account_2/deepseek-02", got[0])
	}
}

func TestGatewayAccessReadyRequiresCompletionSuccess(t *testing.T) {
	t.Parallel()

	if gatewayAccessReady(sub2api.GatewayAccessResult{OK: true, HasExpectedModel: true}) {
		t.Fatal("gatewayAccessReady() = true, want false without completion success")
	}
	if !gatewayAccessReady(sub2api.GatewayAccessResult{OK: true, HasExpectedModel: true, CompletionOK: true}) {
		t.Fatal("gatewayAccessReady() = false, want true when gateway and completion are ready")
	}
}