package main

import (
	"context"
	"testing"
	"time"

	"github.com/kami/maven/internal/ipc"
)

// quietFakeAPI records the WriteFact the toggle performs.
type quietFakeAPI struct {
	ipc.UnimplementedCoreAPI
	got  ipc.WriteFactReq
	call int
}

func (a *quietFakeAPI) WriteFact(_ context.Context, req ipc.WriteFactReq) (int64, error) {
	a.got, a.call = req, a.call+1
	return 1, nil
}

// quietVerdict — what a phrase should do to the setting.
type quietVerdict int

const (
	quietNone quietVerdict = iota
	quietOn
	quietOff
)

func TestResolveQuietToggle(t *testing.T) {
	cases := []struct {
		text string
		want quietVerdict
	}{
		// ON vocabulary.
		{"quiet on", quietOn},
		{"quiet mode", quietOn},
		{"тихий режим", quietOn},
		{"тихий", quietOn},
		{"не шуми", quietOn},
		{"не беспокоить", quietOn},
		{"тихо", quietOn},
		// ON, inflected / embedded in a sentence.
		{"включи тихий режим", quietOn},
		{"побудь в тихом режиме", quietOn},
		{"Тихий Режим!", quietOn},
		{"тихая", quietOn},

		// OFF vocabulary — all seven, incl. the three that used to say ON.
		{"quiet off", quietOff},
		{"quiet end", quietOff},
		{"громкий режим", quietOff},
		{"шумный режим", quietOff},
		{"отмени тихий", quietOff},
		{"выключи тихий", quietOff},
		{"не тихо", quietOff},
		// OFF wins over the ON words it contains.
		{"выключи тихий режим", quietOff},
		{"отмени тихий режим пожалуйста", quietOff},
		{"верни громкий режим", quietOff},

		// False positives: "тихо"/"тихий" as ordinary Russian.
		{"очень тихий сегодня день", quietNone},
		{"в комнате тихо", quietNone},
		{"тихонько напомни", quietNone},
		{"потихоньку", quietNone},
		{"тихонько", quietNone},
		{"он говорил тихим голосом весь вечер", quietNone},

		// Unrelated.
		{"напомни завтра позвонить маме", quietNone},
		{"какая погода", quietNone},
		{"", quietNone},
	}

	for _, tc := range cases {
		t.Run(tc.text, func(t *testing.T) {
			api := &quietFakeAPI{}
			h := &reactiveHandler{api: api, now: func() time.Time { return time.Unix(0, 0).UTC() }}
			reply, handled := h.resolveQuietToggle(context.Background(), tc.text)

			if tc.want == quietNone {
				if handled || reply != "" {
					t.Fatalf("%q: got (%q, %v), want no match", tc.text, reply, handled)
				}
				if api.call != 0 {
					t.Fatalf("%q: wrote a fact on a non-match", tc.text)
				}
				return
			}
			if !handled {
				t.Fatalf("%q: not handled, want %v", tc.text, tc.want)
			}
			wantReply, wantVal := "тихий режим выключен.", "false"
			if tc.want == quietOn {
				wantReply, wantVal = "тихий режим включён. буду реже напоминать.", "true"
			}
			if reply != wantReply {
				t.Errorf("%q: reply = %q, want %q", tc.text, reply, wantReply)
			}
			if api.call != 1 {
				t.Fatalf("%q: WriteFact called %d times, want 1", tc.text, api.call)
			}
			if api.got.Kind != "config" || api.got.Key != "quiet_hours" || api.got.Source != "tap:voice" || api.got.Confidence != 1.0 {
				t.Errorf("%q: request shape = %+v", tc.text, api.got)
			}
			if api.got.Value != wantVal {
				t.Errorf("%q: value = %q, want %q", tc.text, api.got.Value, wantVal)
			}
		})
	}
}