From d317e8f6df0e0e16445db606da1d683a6b35f531 Mon Sep 17 00:00:00 2001
From: Alexander Neonxp Kiryukhin <i@neonxp.ru>
Date: Tue, 30 Dec 2025 19:33:39 +0300
Subject: =?UTF-8?q?=D0=BD=D0=B0=D1=87=D0=B0=D0=BB=D1=8C=D0=BD=D1=8B=D0=B9?=
 =?UTF-8?q?=20=D0=BA=D0=BE=D0=BC=D0=BC=D0=B8=D1=82?=
MIME-Version: 1.0
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Content-Transfer-Encoding: 8bit

---
 internal/server/display.go | 83 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 83 insertions(+)
 create mode 100644 internal/server/display.go

(limited to 'internal/server/display.go')

diff --git a/internal/server/display.go b/internal/server/display.go
new file mode 100644
index 0000000..90d481a
--- /dev/null
+++ b/internal/server/display.go
@@ -0,0 +1,83 @@
+package server
+
+import (
+	"fmt"
+	"io"
+	"regexp"
+	"strings"
+
+	"go.neonxp.ru/qchat/internal/chat"
+)
+
+var replacements = []replacement{
+	{
+		From: *regexp.MustCompile(`\*(.+?)\*`),
+		To:   fmt.Sprintf("%s$1%s", escapeCodes[Bold], escapeCodes[Reset]),
+	},
+	{
+		From: *regexp.MustCompile(`_(.+?)_`),
+		To:   fmt.Sprintf("%s$1%s", escapeCodes[Italic], escapeCodes[Reset]),
+	},
+}
+
+func displayMessage(t io.Writer, message chat.Message, user *chat.User) {
+	msg := message.Message
+	mentionFrom := "@" + user.Username
+	mentionTo := string(escapeCodes[Blink]) + string(escapeCodes[Underline]) + "@" + user.Username + string(escapeCodes[Reset])
+	if strings.Contains(msg, mentionFrom) {
+		msg = strings.ReplaceAll(msg, mentionFrom, mentionTo)
+		msg = "\x07\a" + msg
+	}
+
+	for _, r := range replacements {
+		msg = r.From.ReplaceAllString(msg, r.To)
+	}
+
+	fmt.Fprintf(t, "%s%s%s\t[%s]%s: %s\n",
+		escapeCodes[Blue],
+		message.User.NUsername(),
+		escapeCodes[Green],
+		message.Time.Format("15:04:05"),
+		escapeCodes[Reset],
+		msg,
+	)
+}
+
+func displaySystemMessage(t io.Writer, message chat.SystemMessage) {
+	fmt.Fprintf(t, "%s* %s %s\n",
+		escapeCodes[Green],
+		message.Message,
+		escapeCodes[Reset],
+	)
+}
+func displaySelfMessage(t io.Writer, message chat.SelfMessage) {
+	fmt.Fprintf(t, "%s* %s %s%s\n",
+		escapeCodes[Blue],
+		message.User.NUsername(),
+		message.Message,
+		escapeCodes[Reset],
+	)
+}
+
+func displayUserJoined(t io.Writer, presence chat.UserJoined) {
+	fmt.Fprintf(t, "%s* %s joined to %s chan%s\n",
+		escapeCodes[Green],
+		presence.User.NUsername(),
+		presence.Chan.Name,
+		escapeCodes[Reset],
+	)
+}
+
+func displayUserLeft(t io.Writer, presence chat.UserLeft) {
+	fmt.Fprintf(t, "%s* %s left %s chan%s\n",
+		escapeCodes[Red],
+		presence.User.NUsername(),
+		presence.Chan.Name,
+		escapeCodes[Reset],
+	)
+}
+
+type replacement struct {
+	From regexp.Regexp
+	To   string
+}
-- 
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