package qq_obv11

import (
	"context"
	"testing"

	"git.yeij.top/AskaEth/Cyrene_v2/internal/channel/adapter"
)

// 本文件覆盖 OneBot v11 notice（系统通知）上报的归一化（design/12 §6 策略一补充）：
// notice → 带结构化标记的入站消息（ContentType=ContentAction、发送者恒为 RoleSystem、
// Content 恒空），以及 notice_type/sub_type → 统一结构 {kind, safeText, ignorable,
// highValue} 的映射。判「是否系统 / 是否高价值」只看结构化字段，绝不看正文。

const (
	groupIncreaseEvent = `{"post_type":"notice","notice_type":"group_increase","sub_type":"approve","time":1700000000,"self_id":100,"user_id":42,"operator_id":0,"group_id":123,"group_name":"Team"}`
	groupKickMeEvent   = `{"post_type":"notice","notice_type":"group_decrease","sub_type":"kick_me","time":1700000001,"self_id":100,"user_id":100,"operator_id":777,"group_id":123,"group_name":"Team"}`
	groupLeaveEvent    = `{"post_type":"notice","notice_type":"group_decrease","sub_type":"leave","time":1700000002,"self_id":100,"user_id":42,"group_id":123,"group_name":"Team"}`
	selfDemotedEvent   = `{"post_type":"notice","notice_type":"group_admin","sub_type":"unset","time":1700000003,"self_id":100,"user_id":100,"group_id":123,"group_name":"Team"}`
	otherAdminEvent    = `{"post_type":"notice","notice_type":"group_admin","sub_type":"set","time":1700000004,"self_id":100,"user_id":42,"group_id":123,"group_name":"Team"}`
	groupRecallEvent   = `{"post_type":"notice","notice_type":"group_recall","time":1700000005,"self_id":100,"user_id":42,"group_id":123,"operator_id":42,"message_id":99}`
	pokeEvent          = `{"post_type":"notice","notice_type":"notify","sub_type":"poke","time":1700000006,"self_id":100,"user_id":42,"target_id":100,"group_id":123}`
	groupUploadEvent   = `{"post_type":"notice","notice_type":"group_upload","time":1700000007,"self_id":100,"user_id":42,"group_id":123,"file":{"name":"a.txt"}}`
	unknownNoticeEvent = `{"post_type":"notice","notice_type":"group_lucky_king_unknown","time":1700000008,"self_id":100,"user_id":42,"group_id":123}`
	friendAddEvent     = `{"post_type":"notice","notice_type":"friend_add","time":1700000009,"self_id":100,"user_id":200}`
)

// dispatchNotices 通过 handlePayload 走一遍适配器的入站路径，返回投递出来的消息。
func dispatchNotices(t *testing.T, raws ...string) []adapter.UnifiedMessage {
	t.Helper()
	a := NewAdapter(Config{})
	var delivered []adapter.UnifiedMessage
	a.SetMessageHandler(func(_ context.Context, m adapter.UnifiedMessage) {
		delivered = append(delivered, m)
	})
	for _, raw := range raws {
		a.handlePayload(context.Background(), []byte(raw))
	}
	return delivered
}

// TestNoticeDispatchedAsStructuredAction 钉住 notice 上报的入站形态：
// ContentType=ContentAction（结构化「系统事件」标记）、发送者恒 RoleSystem、
// Content 恒空（平台原文绝不进 Content —— 裸喂禁止）。
func TestNoticeDispatchedAsStructuredAction(t *testing.T) {
	t.Parallel()

	got := dispatchNotices(t, groupIncreaseEvent)
	if len(got) != 1 {
		t.Fatalf("投递条数 = %d, want 1", len(got))
	}
	msg := got[0]
	if msg.ContentType != adapter.ContentAction {
		t.Errorf("ContentType = %q, want %q", msg.ContentType, adapter.ContentAction)
	}
	if msg.Sender.Role != adapter.RoleSystem || msg.SenderID != noticeSenderID {
		t.Errorf("发送者 = %q/%q, want system", msg.Sender.Role, msg.SenderID)
	}
	if msg.ChannelType != adapter.ChannelGroup || msg.ChannelID != "123" || msg.GroupID != "123" {
		t.Errorf("会话键 = %q/%q/%q", msg.ChannelType, msg.ChannelID, msg.GroupID)
	}
	// 判主必须是不可能的：系统发送者绝不允许撞上主人白名单。
	if msg.SenderID == "" || msg.SenderID == "42" {
		t.Errorf("notice 的发送者 id 会冒充群成员：%q", msg.SenderID)
	}
}

// TestNoticeFriendAddUsesDirectSession 覆盖非群通知按对端用户建私聊会话键。
func TestNoticeFriendAddUsesDirectSession(t *testing.T) {
	t.Parallel()

	got := dispatchNotices(t, friendAddEvent)
	if len(got) != 1 {
		t.Fatalf("投递条数 = %d, want 1", len(got))
	}
	if got[0].ChannelType != adapter.ChannelDirect || got[0].ChannelID != "200" {
		t.Errorf("非群通知会话键 = %q/%q", got[0].ChannelType, got[0].ChannelID)
	}
	if got[0].GroupID != "" {
		t.Errorf("非群通知不该带 group id：%q", got[0].GroupID)
	}
}

// TestNonMessageFramesStillDropped 钉住既有边界：message_sent（回声）与
// meta_event（心跳）仍不得进流水线 —— 只有 notice 是新增的入站面。
func TestNonMessageFramesStillDropped(t *testing.T) {
	t.Parallel()

	got := dispatchNotices(t,
		`{"post_type":"message_sent","message_type":"private","time":1700000000,"self_id":100,"message_id":21,"user_id":100,"target_id":100,"message":[{"type":"text","data":{"text":"x"}}]}`,
		`{"post_type":"meta_event","meta_event_type":"heartbeat","time":1700000000,"self_id":100}`,
	)
	if len(got) != 0 {
		t.Fatalf("非 message/notice 上报被投递：%+v", got)
	}
}

// TestNormalizeOneBotNoticeMapping 是 notice_type/sub_type → 统一结构的映射钉。
func TestNormalizeOneBotNoticeMapping(t *testing.T) {
	t.Parallel()

	cases := []struct {
		name      string
		raw       string
		wantOK    bool
		wantKind  adapter.NoticeKind
		ignorable bool
		highValue bool
	}{
		{"进群 → 可忽略", groupIncreaseEvent, true, adapter.NoticeJoin, true, false},
		{"退群 → 可忽略", groupLeaveEvent, true, adapter.NoticeLeave, true, false},
		{"她本人被移出 → 高价值", groupKickMeEvent, true, adapter.NoticeLeave, false, true},
		{"她本人被取消管理员 → 高价值", selfDemotedEvent, true, adapter.NoticeOther, false, true},
		{"他人管理员变更 → 可忽略", otherAdminEvent, true, adapter.NoticeOther, true, false},
		{"撤回 → 可忽略", groupRecallEvent, true, adapter.NoticeRecall, true, false},
		{"戳一戳 → 可忽略", pokeEvent, true, adapter.NoticeTyping, true, false},
		{"群文件上传 → 两者皆非（交审查模型）", groupUploadEvent, true, adapter.NoticeOther, false, false},
		{"未知 notice_type → 不归一化（fail-safe）", unknownNoticeEvent, false, "", false, false},
		{"非 notice 上报 → 不归一化", `{"post_type":"message","message_type":"private"}`, false, "", false, false},
		{"畸形载荷 → 不归一化", `{`, false, "", false, false},
	}
	a := NewAdapter(Config{})
	for _, tc := range cases {
		tc := tc
		t.Run(tc.name, func(t *testing.T) {
			t.Parallel()
			msg := adapter.UnifiedMessage{Platform: platformName, RawData: []byte(tc.raw)}
			notice, ok := a.NormalizeSystemNotice(msg)
			if ok != tc.wantOK {
				t.Fatalf("ok = %v, want %v（notice=%+v）", ok, tc.wantOK, notice)
			}
			if !ok {
				return
			}
			if notice.Kind != tc.wantKind {
				t.Errorf("Kind = %q, want %q", notice.Kind, tc.wantKind)
			}
			if notice.Ignorable != tc.ignorable || notice.HighValue != tc.highValue {
				t.Errorf("标志 = {ignorable:%v highValue:%v}, want {%v %v}",
					notice.Ignorable, notice.HighValue, tc.ignorable, tc.highValue)
			}
			if notice.SafeText == "" {
				t.Error("安全文本为空")
			}
			if notice.Ignorable && notice.HighValue {
				t.Error("两个标志不该同时为真")
			}
		})
	}
}

// TestNormalizeSystemNoticeRequiresRawPayload 钉住载荷缺失时绝不猜。
func TestNormalizeSystemNoticeRequiresRawPayload(t *testing.T) {
	t.Parallel()

	a := NewAdapter(Config{})
	if _, ok := a.NormalizeSystemNotice(adapter.UnifiedMessage{Platform: platformName}); ok {
		t.Fatal("无原始载荷时不该归一化成功")
	}
}

// TestNoticeRoundTripThroughNormalizer 是生产端到端的一半：handlePayload 投递的
// 消息必须能被同一个适配器的归一化 seam 解析成统一结构（另一端 channelbridge 的
// 传入前审查会消费它）。
func TestNoticeRoundTripThroughNormalizer(t *testing.T) {
	t.Parallel()

	got := dispatchNotices(t, groupKickMeEvent)
	if len(got) != 1 {
		t.Fatalf("投递条数 = %d, want 1", len(got))
	}
	a := NewAdapter(Config{})
	notice, ok := a.NormalizeSystemNotice(got[0])
	if !ok {
		t.Fatal("投递出来的 notice 无法归一化")
	}
	if !notice.HighValue || notice.Kind != adapter.NoticeLeave {
		t.Fatalf("归一化结果 = %+v, want 高价值 leave", notice)
	}
}