package inbound

import "testing"

func TestInboundCarrierForOperatorUsesDictionaryValues(t *testing.T) {
	tests := []struct {
		name     string
		operator int
		carrier  string
		ok       bool
	}{
		{name: "mobile", operator: 1, carrier: inboundCarrierMobile, ok: true},
		{name: "telecom", operator: 2, carrier: inboundCarrierTelecom, ok: true},
		{name: "legacy telecom value is unsupported", operator: 3, carrier: "", ok: false},
		{name: "missing", operator: 0, carrier: "", ok: false},
	}

	for _, test := range tests {
		t.Run(test.name, func(t *testing.T) {
			carrier, ok := inboundCarrierForOperator(test.operator)
			if carrier != test.carrier || ok != test.ok {
				t.Fatalf("inboundCarrierForOperator(%d) = %q,%v, want %q,%v", test.operator, carrier, ok, test.carrier, test.ok)
			}
		})
	}
}

func TestResolveInboundUpstreamRateLimitFromChannelMetadataUsesCarrierPolicy(t *testing.T) {
	cfg := defaultInboundUpstreamRateLimitConfig()

	mobile := resolveInboundUpstreamRateLimitFromChannelMetadata(cfg, "chan-mobile", 1, "sim_yd_v5")
	if mobile.carrier != inboundCarrierMobile {
		t.Fatalf("mobile carrier = %q, want %q", mobile.carrier, inboundCarrierMobile)
	}
	if mobile.enabled {
		t.Fatalf("mobile enabled = %v, want false", mobile.enabled)
	}

	telecom := resolveInboundUpstreamRateLimitFromChannelMetadata(cfg, "chan-telecom", 2, "sim_dx_v1")
	if telecom.carrier != inboundCarrierTelecom {
		t.Fatalf("telecom carrier = %q, want %q", telecom.carrier, inboundCarrierTelecom)
	}
	if !telecom.enabled {
		t.Fatalf("telecom enabled = %v, want true", telecom.enabled)
	}
	if telecom.qps != defaultInboundUpstreamQPS {
		t.Fatalf("telecom qps = %v, want %v", telecom.qps, defaultInboundUpstreamQPS)
	}
}

func TestTelecomTemplateOverridesInconsistentOperatorMetadata(t *testing.T) {
	for _, key := range []string{"sim_dx_v1", "sim_dx_v3"} {
		for _, operator := range []int{0, 1, 2, 3} {
			setting := resolveInboundUpstreamRateLimitFromChannelMetadata(defaultInboundUpstreamRateLimitConfig(), "telecom", operator, key)
			if setting.carrier != inboundCarrierTelecom || !setting.enabled || setting.skipReason != "" {
				t.Fatalf("template %q operator %d: %+v", key, operator, setting)
			}
		}
	}
}