package handler

import (
	"bytes"
	"net/http"
	"net/http/httptest"
	"testing"
)

func TestHabitHandler_Create_InvalidBody(t *testing.T) {
	req := httptest.NewRequest("POST", "/habits", bytes.NewBufferString("not json"))
	rr := httptest.NewRecorder()

	h := &HabitHandler{habitService: nil}
	h.Create(rr, req)

	if rr.Code != http.StatusBadRequest {
		t.Errorf("expected 400, got %d", rr.Code)
	}
}

func TestHabitHandler_Create_EmptyName(t *testing.T) {
	body := `{"name":""}`
	req := httptest.NewRequest("POST", "/habits", bytes.NewBufferString(body))
	rr := httptest.NewRecorder()

	h := &HabitHandler{habitService: nil}
	h.Create(rr, req)

	if rr.Code != http.StatusBadRequest {
		t.Errorf("expected 400, got %d", rr.Code)
	}
}

func TestHabitHandler_Get_NoChiParam(t *testing.T) {
	req := httptest.NewRequest("GET", "/habits/1", nil)
	rr := httptest.NewRecorder()
	h := &HabitHandler{habitService: nil}
	h.Get(rr, req)
	if rr.Code != http.StatusBadRequest {
		t.Errorf("expected 400, got %d", rr.Code)
	}
}

func TestHabitHandler_Get_InvalidID(t *testing.T) {
	req := httptest.NewRequest("GET", "/habits/abc", nil)
	req = withChiParam(req, "id", "abc")
	rr := httptest.NewRecorder()
	h := &HabitHandler{habitService: nil}
	h.Get(rr, req)
	if rr.Code != http.StatusBadRequest {
		t.Errorf("expected 400, got %d", rr.Code)
	}
}

func TestHabitHandler_Update_NoChiParam(t *testing.T) {
	req := httptest.NewRequest("PUT", "/habits/1", bytes.NewBufferString("{}"))
	rr := httptest.NewRecorder()
	h := &HabitHandler{habitService: nil}
	h.Update(rr, req)
	if rr.Code != http.StatusBadRequest {
		t.Errorf("expected 400, got %d", rr.Code)
	}
}

func TestHabitHandler_Update_InvalidBody(t *testing.T) {
	req := httptest.NewRequest("PUT", "/habits/1", bytes.NewBufferString("bad json"))
	req = withChiParam(req, "id", "1")
	rr := httptest.NewRecorder()
	h := &HabitHandler{habitService: nil}
	h.Update(rr, req)
	if rr.Code != http.StatusBadRequest {
		t.Errorf("expected 400, got %d", rr.Code)
	}
}

func TestHabitHandler_Delete_NoChiParam(t *testing.T) {
	req := httptest.NewRequest("DELETE", "/habits/1", nil)
	rr := httptest.NewRecorder()
	h := &HabitHandler{habitService: nil}
	h.Delete(rr, req)
	if rr.Code != http.StatusBadRequest {
		t.Errorf("expected 400, got %d", rr.Code)
	}
}

func TestHabitHandler_Delete_InvalidID(t *testing.T) {
	req := httptest.NewRequest("DELETE", "/habits/abc", nil)
	req = withChiParam(req, "id", "abc")
	rr := httptest.NewRecorder()
	h := &HabitHandler{habitService: nil}
	h.Delete(rr, req)
	if rr.Code != http.StatusBadRequest {
		t.Errorf("expected 400, got %d", rr.Code)
	}
}

func TestHabitHandler_Log_NoChiParam(t *testing.T) {
	req := httptest.NewRequest("POST", "/habits/1/log", bytes.NewBufferString("{}"))
	rr := httptest.NewRecorder()
	h := &HabitHandler{habitService: nil}
	h.Log(rr, req)
	if rr.Code != http.StatusBadRequest {
		t.Errorf("expected 400, got %d", rr.Code)
	}
}

func TestHabitHandler_Log_InvalidID(t *testing.T) {
	req := httptest.NewRequest("POST", "/habits/abc/log", bytes.NewBufferString("{}"))
	req = withChiParam(req, "id", "abc")
	rr := httptest.NewRecorder()
	h := &HabitHandler{habitService: nil}
	h.Log(rr, req)
	if rr.Code != http.StatusBadRequest {
		t.Errorf("expected 400, got %d", rr.Code)
	}
}

func TestHabitHandler_GetLogs_NoChiParam(t *testing.T) {
	req := httptest.NewRequest("GET", "/habits/1/logs", nil)
	rr := httptest.NewRecorder()
	h := &HabitHandler{habitService: nil}
	h.GetLogs(rr, req)
	if rr.Code != http.StatusBadRequest {
		t.Errorf("expected 400, got %d", rr.Code)
	}
}

func TestHabitHandler_GetLogs_InvalidID(t *testing.T) {
	req := httptest.NewRequest("GET", "/habits/abc/logs", nil)
	req = withChiParam(req, "id", "abc")
	rr := httptest.NewRecorder()
	h := &HabitHandler{habitService: nil}
	h.GetLogs(rr, req)
	if rr.Code != http.StatusBadRequest {
		t.Errorf("expected 400, got %d", rr.Code)
	}
}

func TestHabitHandler_DeleteLog_NoChiParam(t *testing.T) {
	req := httptest.NewRequest("DELETE", "/habits/logs/1", nil)
	rr := httptest.NewRecorder()
	h := &HabitHandler{habitService: nil}
	h.DeleteLog(rr, req)
	if rr.Code != http.StatusBadRequest {
		t.Errorf("expected 400, got %d", rr.Code)
	}
}

func TestHabitHandler_DeleteLog_InvalidID(t *testing.T) {
	req := httptest.NewRequest("DELETE", "/habits/logs/abc", nil)
	req = withChiParam(req, "logId", "abc")
	rr := httptest.NewRecorder()
	h := &HabitHandler{habitService: nil}
	h.DeleteLog(rr, req)
	if rr.Code != http.StatusBadRequest {
		t.Errorf("expected 400, got %d", rr.Code)
	}
}

func TestHabitHandler_HabitStats_NoChiParam(t *testing.T) {
	req := httptest.NewRequest("GET", "/habits/1/stats", nil)
	rr := httptest.NewRecorder()
	h := &HabitHandler{habitService: nil}
	h.HabitStats(rr, req)
	if rr.Code != http.StatusBadRequest {
		t.Errorf("expected 400, got %d", rr.Code)
	}
}

func TestHabitHandler_HabitStats_InvalidID(t *testing.T) {
	req := httptest.NewRequest("GET", "/habits/abc/stats", nil)
	req = withChiParam(req, "id", "abc")
	rr := httptest.NewRecorder()
	h := &HabitHandler{habitService: nil}
	h.HabitStats(rr, req)
	if rr.Code != http.StatusBadRequest {
		t.Errorf("expected 400, got %d", rr.Code)
	}
}