package handlers

import (
	"net/http"
	"net/http/httptest"
	"path/filepath"
	"runtime"
	"testing"

	"git.nixc.us/a250/ss-atlas/internal/config"
)

func TestContains(t *testing.T) {
	tests := []struct {
		s    string
		sub  string
		want bool
	}{
		{"customers,admins", "customers", true},
		{"admins,customers", "customers", true},
		{"customers", "customers", true},
		{"admins,users", "customers", false},
		{"", "customers", false},
		{"cus", "customers", false},
		{"customersx", "customers", true},
	}
	for _, tt := range tests {
		if got := contains(tt.s, tt.sub); got != tt.want {
			t.Errorf("contains(%q, %q) = %v, want %v", tt.s, tt.sub, got, tt.want)
		}
	}
}

func TestSearchString(t *testing.T) {
	tests := []struct {
		s    string
		sub  string
		want bool
	}{
		{"customers,admins", "customers", true},
		{"admins", "admins", true},
		{"a", "a", true},
		{"abc", "b", true},
		{"abc", "d", false},
		{"", "a", false},
	}
	for _, tt := range tests {
		if got := searchString(tt.s, tt.sub); got != tt.want {
			t.Errorf("searchString(%q, %q) = %v, want %v", tt.s, tt.sub, got, tt.want)
		}
	}
}

func TestSanitizeUsername(t *testing.T) {
	tests := []struct {
		email string
		want  string
	}{
		{"user@example.com", "user"},
		{"User.Name@domain.com", "user-name"},
		{"user_name@domain.com", "user_name"},
		{"user123@domain.com", "user123"},
		{"UPPER@domain.com", "upper"},
		{"a.b.c@x.com", "a-b-c"},
		{"spécial@x.com", "sp-cial"},
	}
	for _, tt := range tests {
		if got := sanitizeUsername(tt.email); got != tt.want {
			t.Errorf("sanitizeUsername(%q) = %q, want %q", tt.email, got, tt.want)
		}
	}
}

func TestHealthRoute(t *testing.T) {
	_, filename, _, _ := runtime.Caller(0)
	rootDir := filepath.Join(filepath.Dir(filename), "..", "..")
	templatePath := filepath.Join(rootDir, "templates")

	cfg := &config.Config{
		Port:         "8080",
		TemplatePath: templatePath,
	}
	router := NewRouter(cfg, nil, nil, nil)

	req := httptest.NewRequest(http.MethodGet, "/health", nil)
	rec := httptest.NewRecorder()
	router.ServeHTTP(rec, req)

	if rec.Code != http.StatusOK {
		t.Errorf("GET /health status = %d, want 200", rec.Code)
	}
	if body := rec.Body.String(); body != "ok" {
		t.Errorf("GET /health body = %q, want ok", body)
	}
}