package http

import (
	"context"
	"errors"
	"net/http"
	"net/http/httptest"
	"strings"
	"testing"

	"primaya-api/cpone-middleware/internal/repository"
)

type fakeRegistrationRepository struct {
	outcome repository.RegistrationOutcome
	err     error
	params  repository.RegistrationParams
}

func (f *fakeRegistrationRepository) RegisterPatient(_ context.Context, params repository.RegistrationParams) (repository.RegistrationOutcome, error) {
	f.params = params
	return f.outcome, f.err
}

func TestRegisterPatientUsesConfiguredDepartmentAndNormalizesPayload(t *testing.T) {
	repo := &fakeRegistrationRepository{outcome: repository.RegistrationOutcome{
		HTTPStatus: http.StatusCreated,
		Success:    true,
		Status:     "registered",
		Message:    "Registrasi berhasil disimpan",
	}}
	handler := Handler{registrationRepo: repo, departmentID: "08_01"}
	request := httptest.NewRequest(http.MethodPost, "/api/cpone/patients/registration", strings.NewReader(`{
		"nik":"3174-0115-0190-0001",
		"tgl_lahir":"1990-01-15",
		"tanggal":"2026-09-07",
		"dokter_id":"driqbal",
		"jenis_pasien_id":"1",
		"jenis_reg_id":2,
		"periode_tarif_id":"10",
		"perusahaan_id":"ADMEDIKAAA",
		"group_tarif_id":18,
		"kelas_id":"Default",
		"channel":"cpone"
	}`))
	recorder := httptest.NewRecorder()
	handler.RegisterPatient(recorder, request)

	if recorder.Code != http.StatusCreated {
		t.Fatalf("status = %d; body=%s", recorder.Code, recorder.Body.String())
	}
	if repo.params.DepartmentID != "08_01" || repo.params.NIK != "3174011501900001" || repo.params.RegistrationType != 2 {
		t.Fatalf("unexpected normalized params: %+v", repo.params)
	}
	if repo.params.PatientTypeID != 1 || repo.params.TariffPeriodID != 10 || repo.params.GroupTariffID != 18 || repo.params.Channel != "CPONE" {
		t.Fatalf("unexpected numeric/text params: %+v", repo.params)
	}
}

func TestRegisterPatientRequiresIdentityWhenMedrecIsMissing(t *testing.T) {
	handler := Handler{registrationRepo: &fakeRegistrationRepository{}, departmentID: "08_01"}
	request := httptest.NewRequest(http.MethodPost, "/api/cpone/patients/registration", strings.NewReader(`{"tanggal":"2026-09-07"}`))
	recorder := httptest.NewRecorder()
	handler.RegisterPatient(recorder, request)

	if recorder.Code != http.StatusUnprocessableEntity || !strings.Contains(recorder.Body.String(), "nik dan tgl_lahir wajib") {
		t.Fatalf("unexpected validation response: status=%d body=%s", recorder.Code, recorder.Body.String())
	}
}

func TestRegisterPatientForwardsRepositoryError(t *testing.T) {
	handler := Handler{registrationRepo: &fakeRegistrationRepository{err: errors.New("database unavailable")}, departmentID: "08_01"}
	request := httptest.NewRequest(http.MethodPost, "/api/cpone/patients/registration", strings.NewReader(`{"medrec_id":"00001234"}`))
	recorder := httptest.NewRecorder()
	handler.RegisterPatient(recorder, request)

	if recorder.Code != http.StatusInternalServerError || !strings.Contains(recorder.Body.String(), "database unavailable") {
		t.Fatalf("unexpected error response: status=%d body=%s", recorder.Code, recorder.Body.String())
	}
}