package mapping

type PHISHealthRecord struct {
	SourceSystem      string
	SourceRecordID    string
	UpdatedAt         string
	IDCard            string
	PersonName        string
	SexCode           string
	Birthday          string
	MobileNumber      string
	RegionCode        string
	RegionName        string
	ManaDoctorID      string
	ManaDoctorName    string
	ManaUnitID        string
	ManaUnitName      string
	NationCode        string
	EducationCode     string
	WorkCode          string
	MaritalStatusCode string
	BloodTypeCode     string
	RhBloodCode       string
	InsuranceCode     string
}

type MappedHealthRecord struct {
	CheckID           string
	IDCard            string
	PersonName        string
	SexCode           string
	Birthday          string
	MobileNumber      string
	RegionCode        string
	ManaDoctorID      string
	ManaUnitID        string
	NationCode        string
	EducationCode     string
	WorkCode          string
	MaritalStatusCode string
	BloodTypeCode     string
	RhBloodCode       string
	InsuranceCode     string
}

type DictSnapshot struct {
	Sex           Dict
	Nation        Dict
	Education     Dict
	Work          Dict
	MaritalStatus Dict
	BloodType     Dict
	RhBlood       Dict
	Insurance     Dict
}

type MasterDataLookup interface {
	RegionCodeByName(name string) (string, bool)
	DoctorIDByName(name string) (string, bool)
	ManaUnitIDByName(name string) (string, bool)
}

type MapContext struct {
	Dicts      DictSnapshot
	MasterData MasterDataLookup
}

func DefaultDictSnapshot() DictSnapshot {
	return DictSnapshot{
		Sex:           SexDict,
		Nation:        NationDict,
		Education:     EducationDict,
		Work:          WorkDict,
		MaritalStatus: MaritalStatusDict,
		BloodType:     BloodTypeDict,
		RhBlood:       RhBloodDict,
		Insurance:     InsuranceDict,
	}
}

func MapHealthRecord(src PHISHealthRecord, ctx MapContext) (MappedHealthRecord, []ValidationError) {
	if ctx.Dicts.Sex.Name == "" {
		ctx.Dicts = DefaultDictSnapshot()
	}
	resolveMasterData(&src, ctx.MasterData)
	var errs []ValidationError
	for _, field := range []struct {
		name  string
		value string
	}{
		{name: "idCard", value: src.IDCard},
		{name: "personName", value: src.PersonName},
		{name: "sexCode", value: src.SexCode},
		{name: "birthday", value: src.Birthday},
		{name: "mobileNumber", value: src.MobileNumber},
		{name: "regionCode", value: src.RegionCode},
		{name: "manaDoctorId", value: src.ManaDoctorID},
		{name: "manaUnitId", value: src.ManaUnitID},
	} {
		if field.value == "" {
			errs = append(errs, ValidationError{Field: field.name, Reason: "required"})
		}
	}

	mapped := MappedHealthRecord{
		CheckID:      GenerateCheckID(src.SourceSystem, "JKDA", src.SourceRecordID, src.UpdatedAt),
		IDCard:       src.IDCard,
		PersonName:   src.PersonName,
		Birthday:     src.Birthday,
		MobileNumber: src.MobileNumber,
		RegionCode:   src.RegionCode,
		ManaDoctorID: src.ManaDoctorID,
		ManaUnitID:   src.ManaUnitID,
	}
	mapped.SexCode = mapCode(ctx.Dicts.Sex, src.SexCode, &errs)
	mapped.NationCode = mapCode(ctx.Dicts.Nation, src.NationCode, &errs)
	mapped.EducationCode = mapCode(ctx.Dicts.Education, src.EducationCode, &errs)
	mapped.WorkCode = mapCode(ctx.Dicts.Work, src.WorkCode, &errs)
	mapped.MaritalStatusCode = mapCode(ctx.Dicts.MaritalStatus, src.MaritalStatusCode, &errs)
	mapped.BloodTypeCode = mapCode(ctx.Dicts.BloodType, src.BloodTypeCode, &errs)
	mapped.RhBloodCode = mapCode(ctx.Dicts.RhBlood, src.RhBloodCode, &errs)
	mapped.InsuranceCode = mapCode(ctx.Dicts.Insurance, src.InsuranceCode, &errs)
	return mapped, errs
}

func resolveMasterData(src *PHISHealthRecord, lookup MasterDataLookup) {
	if lookup == nil {
		return
	}
	if src.RegionCode == "" && src.RegionName != "" {
		if code, ok := lookup.RegionCodeByName(src.RegionName); ok {
			src.RegionCode = code
		}
	}
	if src.ManaDoctorID == "" && src.ManaDoctorName != "" {
		if code, ok := lookup.DoctorIDByName(src.ManaDoctorName); ok {
			src.ManaDoctorID = code
		}
	}
	if src.ManaUnitID == "" && src.ManaUnitName != "" {
		if code, ok := lookup.ManaUnitIDByName(src.ManaUnitName); ok {
			src.ManaUnitID = code
		}
	}
}
func mapCode(dict Dict, code string, errs *[]ValidationError) string {
	if code == "" {
		return ""
	}
	mapped, err := dict.PHISToOSI(code)
	if err != nil {
		if validationErr, ok := err.(ValidationError); ok {
			*errs = append(*errs, validationErr)
			return ""
		}
		*errs = append(*errs, ValidationError{Field: dict.Field, Code: code, Reason: err.Error()})
		return ""
	}
	return mapped
}