package app

import (
	"context"
	"testing"

	"git.5iot.com/iotlcm-public/iotlcm-app/internal/model"
)

func TestValidateAppWarningTrafficMbAllowsLargeThreshold(t *testing.T) {
	if err := validateAppWarningTrafficMb(1024, 2048, 4096); err != nil {
		t.Fatalf("MB warning threshold should allow values greater than 100: %v", err)
	}
}

func TestNormalizeAppWarningSaveParamOnlyAllowsMb(t *testing.T) {
	for _, warnUnit := range []int{2, 3, 4} {
		err := normalizeAppWarningSaveParam(&model.AppWarningConfigSaveParam{
			WarnUnit:  warnUnit,
			FirstWarn: 80,
		})
		if err == nil {
			t.Fatalf("warnUnit %d should be rejected for mini-program warning config", warnUnit)
		}
	}
}

func TestAppWarningUnitTextForMb(t *testing.T) {
	if got := appWarningUnitText(appWarningUnitMb); got != "MB" {
		t.Fatalf("MB warning unit text = %q, want MB", got)
	}
}

func TestAppWarningNotifyEnabledValueDefaultsToDisabled(t *testing.T) {
	if got := appWarningNotifyEnabledValue(nil); got != 0 {
		t.Fatalf("nil app notify enabled = %d, want 0", got)
	}
	enabled := 1
	if got := appWarningNotifyEnabledValue(&enabled); got != 1 {
		t.Fatalf("enabled app notify value = %d, want 1", got)
	}
}

func TestNormalizeAppWarningNotifyParam(t *testing.T) {
	enabled := 0
	param := &model.AppWarningConfigNotifyParam{
		CardValue:        " 8986040000000000000 ",
		AppNotifyEnabled: &enabled,
	}
	if err := normalizeAppWarningNotifyParam(param); err != nil {
		t.Fatalf("valid notify param should pass: %v", err)
	}
	if param.CardValue != "8986040000000000000" {
		t.Fatalf("card value was not trimmed: %q", param.CardValue)
	}
	if param.WarnUnit != appWarningUnitMb {
		t.Fatalf("empty warn unit = %d, want MB", param.WarnUnit)
	}
}

func TestNormalizeAppWarningNotifyParamRejectsInvalidStatus(t *testing.T) {
	invalid := 2
	err := normalizeAppWarningNotifyParam(&model.AppWarningConfigNotifyParam{
		CardValue:        "8986040000000000000",
		WarnUnit:         appWarningUnitMb,
		AppNotifyEnabled: &invalid,
	})
	if err == nil {
		t.Fatal("invalid app notify status should be rejected")
	}
}

func TestNormalizeAppWarningNotifyParamRejectsNonMbUnit(t *testing.T) {
	enabled := 1
	err := normalizeAppWarningNotifyParam(&model.AppWarningConfigNotifyParam{
		CardValue:        "8986040000000000000",
		WarnUnit:         2,
		AppNotifyEnabled: &enabled,
	})
	if err == nil {
		t.Fatal("non-MB warning notify unit should be rejected")
	}
}

func TestNormalizeAppWarningBatchNotifyParamRejectsEmptyCards(t *testing.T) {
	enabled := 1
	_, err := normalizeAppWarningBatchNotifyParam(&model.AppWarningConfigBatchNotifyParam{
		CardValues:       []string{" ", ""},
		AppNotifyEnabled: &enabled,
	})
	if err == nil {
		t.Fatal("empty batch notify cards should be rejected")
	}
}

func TestConfigNotifyRejectsNilParamBeforeCardLookup(t *testing.T) {
	defer func() {
		if value := recover(); value != nil {
			t.Fatalf("ConfigNotify should not panic for nil param: %v", value)
		}
	}()

	_, err := NewAppWarning().ConfigNotify(context.Background(), nil)
	if err == nil {
		t.Fatal("nil notify param should be rejected")
	}
}