package channelbridge

import (
	"strings"
	"testing"
)

func TestStripNarration_RemovesActionBlock(t *testing.T) {
	t.Parallel()
	in := "<action>弯起眼睛笑了</action>\n当然看得到呀，亲爱的。\n怎么突然这么问，是想我了吗？"
	got := stripNarration(in)
	want := "当然看得到呀，亲爱的。\n怎么突然这么问，是想我了吗？"
	if got != want {
		t.Errorf("stripNarration = %q, want %q", got, want)
	}
}

func TestStripNarration_RemovesNarrationAndParagraphs(t *testing.T) {
	t.Parallel()
	in := "<p>你好呀</p>\n<narration>心里有点甜</narration>\n<p>今天天气不错</p>"
	got := stripNarration(in)
	// 段落标记被抹平为换行；旁白块被整体丢弃。
	if got != "你好呀\n今天天气不错" {
		t.Errorf("stripNarration = %q, want %q", got, "你好呀\n今天天气不错")
	}
}

func TestStripNarration_PureChatKept(t *testing.T) {
	t.Parallel()
	in := "就是普通一句话，没有动作。\n第二行。"
	if got := stripNarration(in); got != in {
		t.Errorf("stripNarration changed plain text: %q -> %q", in, got)
	}
}

func TestStripNarration_OnlyActionBecomesEmpty(t *testing.T) {
	t.Parallel()
	in := "<action>拍拍你</action>"
	if got := stripNarration(in); got != "" {
		t.Errorf("stripNarration = %q, want empty", got)
	}
}

func TestStripNarration_CaseAndStrayTags(t *testing.T) {
	t.Parallel()
	in := "<Action>扑上来</Action> 你好 <narration/> 世界"
	got := stripNarration(in)
	if strings.Contains(got, "action") || strings.Contains(got, "narration") || strings.Contains(got, "扑上来") {
		t.Errorf("stripNarration left role-play markup: %q", got)
	}
	if !strings.Contains(got, "你好") || !strings.Contains(got, "世界") {
		t.Errorf("stripNarration dropped chat text: %q", got)
	}
}

func TestSplitBubbles_Paragraphs(t *testing.T) {
	t.Parallel()
	in := "<p>晚上好呀，亲爱的♪</p><p>怎么突然这么问，是想我了吗？</p>"
	got := splitBubbles(in)
	if len(got) != 2 || got[0] != "晚上好呀，亲爱的♪" || got[1] != "怎么突然这么问，是想我了吗？" {
		t.Errorf("splitBubbles = %#v", got)
	}
}

func TestSplitBubbles_StripsRoleplayAndDropsEmpty(t *testing.T) {
	t.Parallel()
	in := "<p><action>弯起眼睛笑了</action>当然看得到呀。</p><p>❤</p>"
	got := splitBubbles(in)
	if len(got) != 2 || got[0] != "当然看得到呀。" {
		t.Errorf("splitBubbles = %#v", got)
	}
	if got[1] != "❤" {
		t.Errorf("splitBubbles[1] = %q, want ❤", got[1])
	}
}

func TestSplitBubbles_NoParagraphIsSingleBubble(t *testing.T) {
	t.Parallel()
	in := "就是普通一句话\n带个换行。"
	got := splitBubbles(in)
	if len(got) != 1 || got[0] != in {
		t.Errorf("splitBubbles = %#v", got)
	}
}

func TestSplitBubbles_OnlyActionIsEmpty(t *testing.T) {
	t.Parallel()
	if got := splitBubbles("<action>拍拍你</action>"); len(got) != 0 {
		t.Errorf("splitBubbles = %#v, want empty", got)
	}
}

func TestStripNarration_StripsFullStarRoleplay(t *testing.T) {
	t.Parallel()
	in := "＊动作：弯起眼睛笑了＊\n当然看得到呀，亲爱的。"
	got := stripNarration(in)
	want := "当然看得到呀，亲爱的。"
	if got != want {
		t.Errorf("stripNarration = %q, want %q", got, want)
	}
}

func TestStripNarration_StripsKeywordHalfStarRoleplay(t *testing.T) {
	t.Parallel()
	in := "*旁白：心里有点甜*\n这是正文。"
	got := stripNarration(in)
	want := "这是正文。"
	if got != want {
		t.Errorf("stripNarration = %q, want %q", got, want)
	}
}

func TestStripNarration_KeepsPlainEmphasis(t *testing.T) {
	t.Parallel()
	in := "这是一段 *强调* 文字，不是动作。"
	if got := stripNarration(in); got != in {
		t.Errorf("stripNarration stripped emphasis: %q -> %q", in, got)
	}
}

func TestStripNarration_MixedStarAndXml(t *testing.T) {
	t.Parallel()
	in := "<action>拍拍肩膀</action> ＊旁白：其实有点开心＊ 你来了呀。对了 *强调*。"
	got := stripNarration(in)
	for _, leaked := range []string{"action", "旁白", "拍拍", "其实有点开心"} {
		if strings.Contains(got, leaked) {
			t.Errorf("stripNarration left role-play %q: %q", leaked, got)
		}
	}
	if !strings.Contains(got, "你来了呀") || !strings.Contains(got, "*强调*") {
		t.Errorf("stripNarration dropped chat/emphasis: %q", got)
	}
}

func TestStripNarration_OnlyStarActionBecomesEmpty(t *testing.T) {
	t.Parallel()
	if got := stripNarration("＊弯起眼睛＊"); got != "" {
		t.Errorf("stripNarration = %q, want empty", got)
	}
}

func TestStripNarration_KeepsLongKeywordlessFullStar(t *testing.T) {
	t.Parallel()
	in := "＊这是一段很长的全角星号包裹的普通段落，足足有几十个字，超过阈值所以应当被保留而不是被剥掉。＊"
	if got := stripNarration(in); got != in {
		t.Errorf("stripNarration dropped long full-width star text: %q -> %q", in, got)
	}
}

func TestSplitBubbles_StripsStarRoleplayInParagraphs(t *testing.T) {
	t.Parallel()
	in := "<p>＊动作：弯起眼睛＊当然看得到呀。</p><p>*旁白：心里甜* 好。</p>"
	got := splitBubbles(in)
	if len(got) != 2 || got[0] != "当然看得到呀。" {
		t.Errorf("splitBubbles = %#v", got)
	}
	if got[1] != "好。" {
		t.Errorf("splitBubbles[1] = %q, want 好。", got[1])
	}
}