package http

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

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

type fakePeriodeTarifRepository struct {
	items []repository.PeriodeTarif
	err   error
}

func (f *fakePeriodeTarifRepository) ListPeriodeTarif(_ context.Context) ([]repository.PeriodeTarif, error) {
	return f.items, f.err
}

func (f *fakePeriodeTarifRepository) ListPeriodeTarifLayanan(_ context.Context, _ repository.PeriodeTarifLayananListParams) (repository.PeriodeTarifLayananPage, error) {
	return repository.PeriodeTarifLayananPage{}, f.err
}

func TestListPeriodeTarifReturnsAvailablePeriods(t *testing.T) {
	keterangan := "Tarif Dasar 2026"
	repo := &fakePeriodeTarifRepository{items: []repository.PeriodeTarif{{
		PeriodeTarifID: 42, Keterangan: &keterangan,
		TanggalBerlaku: "2026-01-01", TanggalBerakhir: "2026-12-31",
	}}}

	recorder := httptest.NewRecorder()
	request := httptest.NewRequest(http.MethodGet, "/api/cpone/periode-tarif", nil)
	Handler{periodeTarifRepo: repo}.ListPeriodeTarif(recorder, request)

	if recorder.Code != http.StatusOK {
		t.Fatalf("status=%d body=%s", recorder.Code, recorder.Body.String())
	}
	for _, expected := range []string{
		`"success":true`, `"message":"ok"`, `"PeriodeTarifID":42`,
		`"Keterangan":"Tarif Dasar 2026"`, `"TanggalBerlaku":"2026-01-01"`,
		`"TanggalBerakhir":"2026-12-31"`,
	} {
		if !strings.Contains(recorder.Body.String(), expected) {
			t.Fatalf("response missing %s: %s", expected, recorder.Body.String())
		}
	}
}

func TestListPeriodeTarifReturnsEmptyArray(t *testing.T) {
	recorder := httptest.NewRecorder()
	request := httptest.NewRequest(http.MethodGet, "/api/cpone/periode-tarif", nil)
	Handler{periodeTarifRepo: &fakePeriodeTarifRepository{items: []repository.PeriodeTarif{}}}.
		ListPeriodeTarif(recorder, request)

	if recorder.Code != http.StatusOK || !strings.Contains(recorder.Body.String(), `"data":[]`) {
		t.Fatalf("status=%d body=%s", recorder.Code, recorder.Body.String())
	}
}

func TestListPeriodeTarifInternalError(t *testing.T) {
	recorder := httptest.NewRecorder()
	request := httptest.NewRequest(http.MethodGet, "/api/cpone/periode-tarif", nil)
	Handler{periodeTarifRepo: &fakePeriodeTarifRepository{err: errors.New("query failed")}}.
		ListPeriodeTarif(recorder, request)

	if recorder.Code != http.StatusInternalServerError {
		t.Fatalf("status=%d body=%s", recorder.Code, recorder.Body.String())
	}
}