package kook

import (
	"encoding/json"
	"testing"

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

func TestToUnified_GroupText(t *testing.T) {
	t.Parallel()
	a := New(Config{BotToken: "x"})
	data := json.RawMessage(`{
		"channel_type":"GROUP","type":1,"target_id":"chan-1","author_id":"u-1",
		"content":"hello world","msg_id":"m-1","msg_timestamp":1700000000000,"nonce":"",
		"extra":{"type":1,"guild_id":"g-1","channel_name":"test","mention":[],"author":{"id":"u-1","username":"alice","nickname":"Alice"}}
	}`)
	msg, ok := a.toUnifiedMessage(data, []byte(`{"s":0,"d":{}}`))
	if !ok {
		t.Fatal("expected a deliverable message")
	}
	if msg.Platform != "kook" {
		t.Errorf("Platform = %q, want kook", msg.Platform)
	}
	if msg.ChannelType != adapter.ChannelGroup {
		t.Errorf("ChannelType = %q, want group", msg.ChannelType)
	}
	if msg.ChannelID != "chan-1" {
		t.Errorf("ChannelID = %q, want chan-1", msg.ChannelID)
	}
	if msg.GroupID != "g-1" {
		t.Errorf("GroupID = %q, want g-1", msg.GroupID)
	}
	if msg.GroupName != "test" {
		t.Errorf("GroupName = %q, want test", msg.GroupName)
	}
	if msg.SenderID != "u-1" || msg.SenderName != "Alice" {
		t.Errorf("Sender = %q/%q, want u-1/Alice", msg.SenderID, msg.SenderName)
	}
	if msg.Sender.DisplayName != "Alice" || msg.Sender.UserID != "u-1" {
		t.Errorf("Actor = %+v, want DisplayName Alice/UserID u-1", msg.Sender)
	}
	if msg.Content != "hello world" || msg.ContentType != adapter.ContentText {
		t.Errorf("Content = %q/%q, want hello world/text", msg.Content, msg.ContentType)
	}
	if msg.MessageID != "m-1" || msg.Timestamp.UnixMilli() != 1700000000000 {
		t.Errorf("MessageID/Timestamp = %q/%d", msg.MessageID, msg.Timestamp.UnixMilli())
	}
}

func TestToUnified_PrivateText(t *testing.T) {
	t.Parallel()
	a := New(Config{BotToken: "x"})
	data := json.RawMessage(`{
		"channel_type":"PERSON","type":1,"target_id":"user-9","author_id":"user-9",
		"content":"hi","msg_id":"m-2","msg_timestamp":1700000000000,"nonce":"",
		"extra":{"type":1,"author":{"id":"user-9","username":"bob","nickname":"Bob"}}
	}`)
	msg, ok := a.toUnifiedMessage(data, nil)
	if !ok {
		t.Fatal("expected a deliverable message")
	}
	if msg.ChannelType != adapter.ChannelDirect {
		t.Errorf("ChannelType = %q, want direct", msg.ChannelType)
	}
	if msg.ChannelID != "user-9" {
		t.Errorf("ChannelID = %q, want user-9 (peer id)", msg.ChannelID)
	}
	if msg.GroupID != "" {
		t.Errorf("GroupID should be empty for private, got %q", msg.GroupID)
	}
	if msg.SenderName != "Bob" {
		t.Errorf("SenderName = %q, want Bob", msg.SenderName)
	}
}

func TestToUnified_KMarkdown(t *testing.T) {
	t.Parallel()
	a := New(Config{BotToken: "x"})
	data := json.RawMessage(`{
		"channel_type":"GROUP","type":9,"target_id":"chan-2","author_id":"u-2",
		"content":"*bold*","msg_id":"m-3","msg_timestamp":1700000000000,"nonce":"",
		"extra":{"type":9,"guild_id":"g-2","channel_name":"c","author":{"id":"u-2","username":"u","nickname":"N"}}
	}`)
	msg, ok := a.toUnifiedMessage(data, nil)
	if !ok {
		t.Fatal("expected a deliverable message")
	}
	if msg.ContentType != adapter.ContentText || msg.Content != "*bold*" {
		t.Errorf("kmarkdown should map to text, got %q/%q", msg.Content, msg.ContentType)
	}
	if msg.GroupID != "g-2" {
		t.Errorf("GroupID = %q, want g-2", msg.GroupID)
	}
}

func TestToUnified_Image(t *testing.T) {
	t.Parallel()
	a := New(Config{BotToken: "x"})
	data := json.RawMessage(`{
		"channel_type":"GROUP","type":2,"target_id":"chan-3","author_id":"u-3",
		"content":"https://img/photo.jpg","msg_id":"m-4","msg_timestamp":1700000000000,"nonce":"",
		"extra":{"type":2,"guild_id":"g-3","author":{"id":"u-3","username":"u","nickname":"N"}}
	}`)
	msg, ok := a.toUnifiedMessage(data, nil)
	if !ok {
		t.Fatal("expected a deliverable message")
	}
	if msg.ContentType != adapter.ContentImage {
		t.Errorf("ContentType = %q, want image", msg.ContentType)
	}
	if len(msg.Media) != 1 || msg.Media[0].Kind != adapter.MediaImage || msg.Media[0].URL != "https://img/photo.jpg" {
		t.Errorf("Media = %+v, want image URL https://img/photo.jpg", msg.Media)
	}
}

func TestToUnified_VideoMapsToFile(t *testing.T) {
	t.Parallel()
	data := json.RawMessage(`{
		"channel_type":"GROUP","type":3,"target_id":"c","author_id":"u",
		"content":"https://img/a.mp4","msg_id":"m","msg_timestamp":1700000000000,"nonce":"",
		"extra":{"type":3,"guild_id":"g","author":{"id":"u","username":"u","nickname":"N"}}
	}`)
	a := New(Config{BotToken: "x"})
	msg, ok := a.toUnifiedMessage(data, nil)
	if !ok {
		t.Fatal("expected a deliverable message")
	}
	if len(msg.Media) != 1 || msg.Media[0].Kind != adapter.MediaVideo {
		t.Fatalf("Media = %+v, want video", msg.Media)
	}
}

func TestToUnified_SystemSkipped(t *testing.T) {
	t.Parallel()
	a := New(Config{BotToken: "x"})
	// type 255 system message → not a chat deliverable.
	if _, ok := a.toUnifiedMessage(json.RawMessage(`{"channel_type":"GROUP","type":255,"target_id":"c","author_id":"1","content":"{}","msg_id":"m","msg_timestamp":1,"extra":{}}`), nil); ok {
		t.Error("system message should be skipped")
	}
	// author_id 1 = system → skipped even for a normal type.
	if _, ok := a.toUnifiedMessage(json.RawMessage(`{"channel_type":"GROUP","type":1,"target_id":"c","author_id":"1","content":"x","msg_id":"m","msg_timestamp":1,"extra":{}}`), nil); ok {
		t.Error("author_id 1 (system) should be skipped")
	}
}

func TestMentions(t *testing.T) {
	t.Parallel()
	a := New(Config{BotToken: "x"})
	data := json.RawMessage(`{
		"channel_type":"GROUP","type":1,"target_id":"c","author_id":"u",
		"content":"hello","msg_id":"m","msg_timestamp":1700000000000,"nonce":"",
		"extra":{"type":1,"guild_id":"g","mention":["u-1","u-2"],"author":{"id":"u","username":"u","nickname":"N"}}
	}`)
	msg, ok := a.toUnifiedMessage(data, nil)
	if !ok {
		t.Fatal("expected a deliverable message")
	}
	if len(msg.Mentions) != 2 || msg.Mentions[0].UserID != "u-1" || msg.Mentions[1].UserID != "u-2" {
		t.Errorf("Mentions = %+v, want u-1/u-2", msg.Mentions)
	}
}