package model

import (
	"encoding/json"
	"testing"

	"github.com/go-playground/validator/v10"
)

func TestOrderRequestsAndResponsesPreserveFrontendFields(t *testing.T) {
	inboundRequest := CreateInboundRequest{}
	if err := json.Unmarshal([]byte(`{"handler":"张三","supplier":"供应商","remark":"到货验收通过","items":[{"material_id":1,"quantity":2}]}`), &inboundRequest); err != nil {
		t.Fatalf("unmarshal inbound request: %v", err)
	}
	if inboundRequest.Remark != "到货验收通过" {
		t.Fatalf("inbound remark = %q, want %q", inboundRequest.Remark, "到货验收通过")
	}

	outboundRequest := CreateOutboundRequest{}
	if err := json.Unmarshal([]byte(`{"handler":"李四","receiver":"装配车间","remark":"急用","items":[{"material_id":1,"quantity":2}]}`), &outboundRequest); err != nil {
		t.Fatalf("unmarshal outbound request: %v", err)
	}
	if outboundRequest.Remark != "急用" {
		t.Fatalf("outbound remark = %q, want %q", outboundRequest.Remark, "急用")
	}

	payload, err := json.Marshal(struct {
		Inbound  InboundOrder  `json:"inbound"`
		Outbound OutboundOrder `json:"outbound"`
	}{
		Inbound:  InboundOrder{InboundNo: "IN-20260920-0001", Operator: "管理员", Remark: "到货验收通过"},
		Outbound: OutboundOrder{OutboundNo: "OUT-20260920-0001", Operator: "管理员", Remark: "急用"},
	})
	if err != nil {
		t.Fatalf("marshal orders: %v", err)
	}

	for _, field := range []string{"inbound_no", "outbound_no", "operator", "remark"} {
		if !containsJSONField(payload, field) {
			t.Fatalf("order response omits %q: %s", field, payload)
		}
	}
}

func TestOutboundRequestDoesNotRequireClientProvidedHandler(t *testing.T) {
	var request CreateOutboundRequest
	if err := json.Unmarshal([]byte(`{"receiver":"装配车间","items":[{"material_id":1,"quantity":2}]}`), &request); err != nil {
		t.Fatalf("unmarshal outbound request: %v", err)
	}

	validate := validator.New()
	validate.SetTagName("binding")
	if err := validate.Struct(request); err != nil {
		t.Fatalf("outbound request without a client handler should be valid: %v", err)
	}
}

func containsJSONField(payload []byte, field string) bool {
	var decoded map[string]map[string]any
	if err := json.Unmarshal(payload, &decoded); err != nil {
		return false
	}
	for _, order := range decoded {
		if _, ok := order[field]; ok {
			return true
		}
	}
	return false
}