package reward

import (
	"context"
	"database/sql"
	"testing"
	"time"

	"github.com/wangjia/pangolin/server/internal/codes"
)

type fakeChecker struct{ member bool }

func (f fakeChecker) IsMember(_ context.Context, _, _ string) (bool, error) { return f.member, nil }

func newTgSvc(t *testing.T, db *sql.DB, member bool) *Service {
	g := codes.NewService(codes.NewStore(db), nil, 5, time.Hour)
	s := NewService(db, NewStore(db), g, Config{TgDays: 3}, time.Now)
	s.SetTelegram("bot", "@ch", "tok", "sec")
	s.SetMemberChecker(fakeChecker{member: member})
	return s
}

func TestClaimTelegram_MemberGrantsOnce(t *testing.T) {
	db := openDB(t)
	seedU(t, db, 1, "u1")
	s := newTgSvc(t, db, true)
	res, err := s.ClaimTelegram(context.Background(), 1, "tg-777")
	if err != nil || res != ClaimGranted {
		t.Fatalf("claim1: %v %v", res, err)
	}
	if d := proDays(t, db, 1); d < 3 {
		t.Fatalf("pro days=%d", d)
	}
	// 再领 → 已领取过(唯一守卫),不再发
	res2, err2 := s.ClaimTelegram(context.Background(), 1, "tg-777")
	if err2 != nil || res2 != ClaimAlready {
		t.Fatalf("claim2: %v %v", res2, err2)
	}
}

func TestClaimTelegram_NonMemberNoGrant(t *testing.T) {
	db := openDB(t)
	seedU(t, db, 1, "u1")
	s := newTgSvc(t, db, false)
	res, err := s.ClaimTelegram(context.Background(), 1, "tg-1")
	if err != nil || res != ClaimNotMember {
		t.Fatalf("claim: %v %v", res, err)
	}
	if d := proDays(t, db, 1); d >= 3 {
		t.Fatalf("granted days to non-member: %d", d)
	}
}

func TestTgMsgSetFor_LanguageSelection(t *testing.T) {
	cases := []struct {
		lang string
		zh   bool
	}{
		{"zh-hans", true},
		{"zh", true},
		{"zh-CN", true},
		{"en", false},
		{"de", false},
		{"", false},
	}
	for _, c := range cases {
		got := tgMsgSetFor(c.lang)
		isZH := got.granted == tgMsgsZH.granted
		if isZH != c.zh {
			t.Fatalf("lang=%q: expected zh=%v, got zh=%v", c.lang, c.zh, isZH)
		}
	}
}