package autocomplete_test

import (
	"slices"
	"testing"

	"git.sunturtle.xyz/zephyr/horsebot/autocomplete"
)

func these(s ...string) []string { return s }

func TestAutocomplete(t *testing.T) {
	cases := []struct {
		name   string
		add    []string
		search string
		want   []string
	}{
		{
			name:   "empty",
			add:    nil,
			search: "",
			want:   nil,
		},
		{
			name:   "exact",
			add:    these("bocchi"),
			search: "bocchi",
			want:   these("bocchi"),
		},
		{
			name:   "extra",
			add:    these("bocchi", "ryo", "nijika", "kita"),
			search: "bocchi",
			want:   these("bocchi"),
		},
		{
			name:   "short",
			add:    these("bocchi", "ryo", "nijika", "kita"),
			search: "o",
			want:   these("bocchi", "ryo"),
		},
		{
			name:   "map",
			add:    these("Corazón ☆ Ardiente"),
			search: "corazo",
			want:   these("Corazón ☆ Ardiente"),
		},
	}
	for _, c := range cases {
		t.Run(c.name, func(t *testing.T) {
			var set autocomplete.Set
			for _, s := range c.add {
				set.Add(s, s)
			}
			got := set.Find(nil, c.search)
			slices.Sort(c.want)
			slices.Sort(got)
			if !slices.Equal(c.want, got) {
				t.Errorf("wrong results: want %q, got %q", c.want, got)
			}
		})
	}
}