package app

import (
	"reflect"
	"testing"

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

	"github.com/gogf/gf/v2/encoding/gjson"
	"github.com/gogf/gf/v2/os/gtime"
)

func TestAppRenewBeginDateFromExpireUsesPreviousMonthEnd(t *testing.T) {
	expireAt := gtime.NewFromStr("2026-08-15 00:00:00")

	got := appRenewBeginDateFromExpire(expireAt)
	if got == nil {
		t.Fatal("expected renew begin time")
	}
	if want := "2026-07-31 23:59:59"; got.Format("Y-m-d H:i:s") != want {
		t.Fatalf("expected %s, got %s", want, got.Format("Y-m-d H:i:s"))
	}
}

func TestAppRenewExpireAfterUsesPreviousMonthEnd(t *testing.T) {
	expireAt := gtime.NewFromStr("2026-08-15 00:00:00")

	got := appRenewExpireAfter(expireAt, 3)
	if got == nil {
		t.Fatal("expected renew expire after time")
	}
	if want := "2026-10-31 23:59:59"; got.Format("Y-m-d H:i:s") != want {
		t.Fatalf("expected %s, got %s", want, got.Format("Y-m-d H:i:s"))
	}
}

func TestAppRenewableDurationYearOptionsUsesYearConfig(t *testing.T) {
	pkg := &entity.TSimFlowPackageInfo{
		RenewableDurationConfig: gjson.New([]int{1, 2, 3}),
	}

	got, err := appRenewableDurationYearOptions(pkg)
	if err != nil {
		t.Fatalf("appRenewableDurationYearOptions() error = %v", err)
	}
	if want := []int{1, 2, 3}; !reflect.DeepEqual(got, want) {
		t.Fatalf("appRenewableDurationYearOptions() = %#v, want %#v", got, want)
	}
}

func TestAppRenewableDurationYearOptionsCompatibleWithLegacyMonthConfig(t *testing.T) {
	pkg := &entity.TSimFlowPackageInfo{
		RenewableDurationConfig: gjson.New([]int{12, 24, 36}),
	}

	got, err := appRenewableDurationYearOptions(pkg)
	if err != nil {
		t.Fatalf("appRenewableDurationYearOptions() error = %v", err)
	}
	if want := []int{1, 2, 3}; !reflect.DeepEqual(got, want) {
		t.Fatalf("appRenewableDurationYearOptions() = %#v, want %#v", got, want)
	}
}

func TestAppRenewApplyPriceRuleNormalizesPercentRatio(t *testing.T) {
	if got, want := appRenewApplyPriceRule(100, 85, 5), 90.0; got != want {
		t.Fatalf("appRenewApplyPriceRule() = %v, want %v", got, want)
	}
	if got, want := appRenewApplyPriceRule(100, 0.85, 5), 90.0; got != want {
		t.Fatalf("appRenewApplyPriceRule() = %v, want %v", got, want)
	}
}

func TestAppRenewEffectiveSalePriceUsesPriceOwnerBaseCost(t *testing.T) {
	salePrice := appRenewEffectiveSalePriceFromBaseCosts(
		appRenewEffectiveBaseCosts{
			AgentCost:    80,
			TerminalCost: 120,
		},
		appRenewPriceRule{
			AgentCostRatio:     1.2,
			AgentCostProfit:    3,
			TerminalCostRatio:  1.5,
			TerminalCostProfit: 6,
		},
	)

	if got, want := salePrice.AgentShipmentPrice, 99.0; got != want {
		t.Fatalf("agent shipment price = %v, want %v", got, want)
	}
	if got, want := salePrice.TerminalSalePrice, 186.0; got != want {
		t.Fatalf("terminal sale price = %v, want %v", got, want)
	}
}

func TestAppRenewPriceRuleUsesTargetAndDefaultSnapshots(t *testing.T) {
	target := appRenewPriceRuleFromOverride("target", &entity.TSimFlowPackagePrice{
		Id:              11,
		AgentCostRatio:  0.9,
		AgentCostProfit: 3,
		UserCostRatio:   1.2,
		UserCostProfit:  5,
	})
	if target.PriceSource != "target" || target.TargetPriceId != 11 || target.AgentDefaultPriceId != 0 {
		t.Fatalf("target rule snapshot = %#v", target)
	}
	if got, want := appRenewEffectiveSalePriceFromBaseCosts(appRenewEffectiveBaseCosts{
		AgentCost:    100,
		TerminalCost: 100,
	}, target).AgentShipmentPrice, 93.0; got != want {
		t.Fatalf("target agent sale price = %v, want %v", got, want)
	}

	defaultRule := appRenewPriceRuleFromOverride("agentDefault", &entity.TSimFlowPackagePrice{
		Id:              12,
		AgentCostRatio:  80,
		AgentCostProfit: 1,
		UserCostRatio:   150,
		UserCostProfit:  2,
	})
	if defaultRule.PriceSource != "agentDefault" || defaultRule.AgentDefaultPriceId != 12 || defaultRule.TargetPriceId != 0 {
		t.Fatalf("default rule snapshot = %#v", defaultRule)
	}
	if got, want := appRenewEffectiveSalePriceFromBaseCosts(appRenewEffectiveBaseCosts{
		AgentCost:    100,
		TerminalCost: 100,
	}, defaultRule).TerminalSalePrice, 152.0; got != want {
		t.Fatalf("default terminal sale price = %v, want %v", got, want)
	}
}

func TestAppRenewSystemBaseCostsFallsBackToCostPriceForTerminal(t *testing.T) {
	pkg := &entity.TSimFlowPackageInfo{
		CostPrice:    80,
		TerminalCost: 0,
	}

	got := appRenewSystemBaseCosts(pkg)
	if got.AgentCost != 80 || got.TerminalCost != 80 {
		t.Fatalf("appRenewSystemBaseCosts() = %#v, want agent=80 terminal=80", got)
	}
}