Add moderation TUI

This ended up way fancier than I imagined.

modui/mime.py

@@ -0,0 +1,122 @@
+from enum import Enum
+from textual import log
+
+mimemoji = {
+    "audio" : "🔈",
+    "video" : "🎞",
+    "text"  : "📄",
+    "image" : "🖼",
+    "application/zip" : "🗜️",
+    "application/x-zip-compressed" : "🗜️",
+    "application/x-tar" : "🗄",
+    "application/x-cpio" : "🗄",
+    "application/x-xz" : "🗜️",
+    "application/x-7z-compressed" : "🗜️",
+    "application/gzip" : "🗜️",
+    "application/zstd" : "🗜️",
+    "application/x-rar" : "🗜️",
+    "application/x-rar-compressed" : "🗜️",
+    "application/vnd.ms-cab-compressed" : "🗜️",
+    "application/x-bzip2" : "🗜️",
+    "application/x-lzip" : "🗜️",
+    "application/x-iso9660-image" : "💿",
+    "application/pdf" : "📕",
+    "application/epub+zip" : "📕",
+    "application/mxf" : "🎞",
+    "application/vnd.android.package-archive" : "📦",
+    "application/vnd.debian.binary-package" : "📦",
+    "application/x-rpm" : "📦",
+    "application/x-dosexec" : "⚙",
+    "application/x-execuftable" : "⚙",
+    "application/x-sharedlib" : "⚙",
+    "application/java-archive" : "☕",
+    "application/x-qemu-disk" : "🖴",
+    "application/pgp-encrypted" : "🔏",
+}
+
+MIMECategory = Enum("MIMECategory",
+    ["Archive", "Text", "AV", "Document", "Fallback"]
+)
+
+class MIMEHandler:
+    def __init__(self):
+        self.handlers = {
+            MIMECategory.Archive : [[
+                "application/zip",
+                "application/x-zip-compressed",
+                "application/x-tar",
+                "application/x-cpio",
+                "application/x-xz",
+                "application/x-7z-compressed",
+                "application/gzip",
+                "application/zstd",
+                "application/x-rar",
+                "application/x-rar-compressed",
+                "application/vnd.ms-cab-compressed",
+                "application/x-bzip2",
+                "application/x-lzip",
+                "application/x-iso9660-image",
+                "application/vnd.android.package-archive",
+                "application/vnd.debian.binary-package",
+                "application/x-rpm",
+                "application/java-archive",
+                "application/vnd.openxmlformats"
+            ], []],
+            MIMECategory.Text : [["text"], []],
+            MIMECategory.AV : [[
+                "audio", "video", "image",
+                "application/mxf"
+            ], []],
+            MIMECategory.Document : [[
+                "application/pdf",
+                "application/epub",
+                "application/x-mobipocket-ebook",
+            ], []],
+            MIMECategory.Fallback : [[], []]
+        }
+
+        self.exceptions = {
+            MIMECategory.Archive : {
+                ".cbz" : MIMECategory.Document,
+                ".xps" : MIMECategory.Document,
+                ".epub" : MIMECategory.Document,
+            },
+            MIMECategory.Text : {
+                ".fb2" : MIMECategory.Document,
+            }
+        }
+
+    def register(self, category, handler):
+        self.handlers[category][1].append(handler)
+
+    def handle(self, mime, ext):
+        def getcat(s):
+            cat = MIMECategory.Fallback
+            for k, v in self.handlers.items():
+                s = s.split(";")[0]
+                if s in v[0] or s.split("/")[0] in v[0]:
+                    cat = k
+                    break
+
+                for x in v[0]:
+                    if s.startswith(x):
+                        cat = k
+                        break
+
+            if cat in self.exceptions:
+                cat = self.exceptions[cat].get(ext) or cat
+
+            return cat
+
+        cat = getcat(mime)
+        for handler in self.handlers[cat][1]:
+            try:
+                if handler(cat): return
+            except: pass
+
+        for handler in self.handlers[MIMECategory.Fallback][1]:
+            try:
+                if handler(None): return
+            except: pass
+
+        raise RuntimeError(f"Unhandled MIME type category: {cat}")