package mapping

import "testing"

func TestMapHealthRecordMapsDirectFieldsDictsAndCheckID(t *testing.T) {
	src := validPHISHealthRecord()
	got, errs := MapHealthRecord(src, MapContext{Dicts: DefaultDictSnapshot()})
	if len(errs) != 0 {
		t.Fatalf("errors = %#v", errs)
	}
	if got.IDCard != src.IDCard || got.PersonName != src.PersonName || got.Birthday != src.Birthday || got.MobileNumber != src.MobileNumber {
		t.Fatalf("direct fields not mapped: %#v", got)
	}
	if got.SexCode != "1" || got.NationCode != "01" || got.EducationCode != "31" || got.WorkCode != "Y" {
		t.Fatalf("dict fields not mapped: %#v", got)
	}
	if got.MaritalStatusCode != "20" || got.BloodTypeCode != "4" || got.RhBloodCode != "1" || got.InsuranceCode != "01" {
		t.Fatalf("dict fields not mapped: %#v", got)
	}
	if got.RegionCode != src.RegionCode || got.ManaDoctorID != src.ManaDoctorID || got.ManaUnitID != src.ManaUnitID {
		t.Fatalf("management fields not mapped: %#v", got)
	}
	if got.CheckID == "" || len(got.CheckID) != 20 {
		t.Fatalf("checkId = %q", got.CheckID)
	}
}

func TestMapHealthRecordReportsRequiredFieldErrors(t *testing.T) {
	src := validPHISHealthRecord()
	src.IDCard = ""
	src.PersonName = ""
	src.ManaUnitID = ""

	_, errs := MapHealthRecord(src, MapContext{Dicts: DefaultDictSnapshot()})
	if len(errs) != 3 {
		t.Fatalf("errors = %#v", errs)
	}
	assertValidationField(t, errs, "idCard", "required")
	assertValidationField(t, errs, "personName", "required")
	assertValidationField(t, errs, "manaUnitId", "required")
}

func TestMapHealthRecordReportsDictValidationErrors(t *testing.T) {
	src := validPHISHealthRecord()
	src.SexCode = "bad"

	_, errs := MapHealthRecord(src, MapContext{Dicts: DefaultDictSnapshot()})
	if len(errs) != 1 {
		t.Fatalf("errors = %#v", errs)
	}
	if errs[0].Field != "sexCode" || errs[0].Code != "bad" || errs[0].Direction != DirectionPHISToOSI {
		t.Fatalf("error = %#v", errs[0])
	}
}

func TestMapHealthRecordUsesInjectedDictSnapshot(t *testing.T) {
	src := validPHISHealthRecord()
	src.SexCode = "M"
	dicts := DefaultDictSnapshot()
	dicts.Sex = Dict{Name: "sex", Field: "sexCode", Entries: []Entry{{PHIS: "M", OSI: "1", Name: "男"}}}

	got, errs := MapHealthRecord(src, MapContext{Dicts: dicts})
	if len(errs) != 0 {
		t.Fatalf("errors = %#v", errs)
	}
	if got.SexCode != "1" {
		t.Fatalf("SexCode = %q", got.SexCode)
	}
}

func TestGenerateCheckIDIsDeterministicAndVersionSensitive(t *testing.T) {
	first := GenerateCheckID("PHIS", "JKDA", "record-001", "20260707010101")
	second := GenerateCheckID("PHIS", "JKDA", "record-001", "20260707010101")
	third := GenerateCheckID("PHIS", "JKDA", "record-001", "20260708010101")
	if first != second {
		t.Fatalf("checkId not deterministic: %q != %q", first, second)
	}
	if len(first) != 20 {
		t.Fatalf("checkId length = %d, want 20", len(first))
	}
	if first == third {
		t.Fatalf("version change did not affect checkId: %q", first)
	}
}

func validPHISHealthRecord() PHISHealthRecord {
	return PHISHealthRecord{
		SourceSystem:      "PHIS",
		SourceRecordID:    "record-001",
		UpdatedAt:         "20260707010101",
		IDCard:            "440000********1234",
		PersonName:        "测试人员",
		SexCode:           "1",
		Birthday:          "1970-01-01",
		MobileNumber:      "13900000000",
		RegionCode:        "441625000000",
		ManaDoctorID:      "D001",
		ManaUnitID:        "123456789",
		NationCode:        "01",
		EducationCode:     "31",
		WorkCode:          "Y",
		MaritalStatusCode: "20",
		BloodTypeCode:     "4",
		RhBloodCode:       "1",
		InsuranceCode:     "01",
	}
}

func assertValidationField(t *testing.T, errs []ValidationError, field string, reason string) {
	t.Helper()
	for _, err := range errs {
		if err.Field == field && err.Reason == reason {
			return
		}
	}
	t.Fatalf("missing validation error field=%s reason=%s in %#v", field, reason, errs)
}