alldebrid plugin optimization and mpv playlist fix

SYS/config.py

@@ -6,6 +6,7 @@ import json
 import sqlite3
 import time
 import os
+import re
 import datetime
 import sys
 import tempfile
@@ -30,6 +31,7 @@ _LAST_SAVED_CONFIG: Dict[str, Any] = {}
 _CONFIG_SAVE_MAX_RETRIES = 5
 _CONFIG_SAVE_RETRY_DELAY = 0.15
 _CONFIG_MISSING = object()
+_PATH_ALIAS_TOKEN_RE = re.compile(r"^\$(?:\((?P<braced>[^)]+)\)|(?P<plain>[A-Za-z0-9_.-]+))$")
 
 
 class ConfigSaveConflict(Exception):
@@ -62,6 +64,20 @@ def global_config() -> List[Dict[str, Any]]:
             "group": "Display",
             "default": "rainbow",
             "choices": ["plain", "bw-striped", "rainbow"],
+        },
+        {
+            "key": "download_path_default",
+            "label": "Default Download Path",
+            "group": "Downloads",
+            "type": "string",
+            "default": "",
+        },
+        {
+            "key": "path_aliases",
+            "label": "Path Aliases",
+            "group": "Downloads",
+            "type": "json",
+            "default": {},
         }
     ]
 
@@ -82,6 +98,56 @@ def get_nested_config_value(config: Dict[str, Any], *path: str) -> Any:
     return cur
 
 
+def _normalize_path_alias_name(value: Any) -> Optional[str]:
+    raw = str(value or "").strip()
+    if not raw:
+        return None
+
+    match = _PATH_ALIAS_TOKEN_RE.match(raw)
+    if match:
+        raw = str(match.group("braced") or match.group("plain") or "").strip()
+
+    candidate = raw.strip().strip("()")
+    if not candidate:
+        return None
+    return candidate.lower()
+
+
+def get_path_aliases(config: Dict[str, Any]) -> Dict[str, str]:
+    aliases: Dict[str, str] = {}
+    if not isinstance(config, dict):
+        return aliases
+
+    for block_name in ("path_aliases", "download_paths"):
+        block = config.get(block_name)
+        if not isinstance(block, dict):
+            continue
+        for key, value in block.items():
+            alias = _normalize_path_alias_name(key)
+            if not alias:
+                continue
+            if isinstance(value, str) and value.strip():
+                aliases[alias] = value.strip()
+
+    return aliases
+
+
+def resolve_path_alias(config: Dict[str, Any], value: Any) -> Optional[Path]:
+    raw = str(value or "").strip()
+    if not raw.startswith("$"):
+        return None
+
+    alias = _normalize_path_alias_name(raw)
+    if not alias:
+        return None
+
+    target = get_path_aliases(config).get(alias)
+    if not target:
+        return None
+
+    return expand_path(target)
+
+
 def coerce_config_value(
     value: Any,
     existing_value: Any = _CONFIG_MISSING,
@@ -271,13 +337,24 @@ def resolve_output_dir(config: Dict[str, Any]) -> Path:
     """Resolve output directory from config with single source of truth.
 
     Priority:
-    1. config["temp"] - explicitly set temp/output directory
-    2. config["outfile"] - fallback to outfile setting
-    3. System Temp - default fallback directory
+    1. config["download_path_default"] - default download/output directory
+    2. config["temp"] - explicitly set temp/output directory
+    3. config["outfile"] - fallback to outfile setting
+    4. System Temp - default fallback directory
 
     Returns:
         Path to output directory
     """
+    default_output = config.get("download_path_default")
+    if default_output:
+        try:
+            aliased = resolve_path_alias(config, default_output)
+            path = aliased if aliased is not None else expand_path(default_output)
+            if path.exists() or path.parent.exists():
+                return path
+        except Exception as exc:
+            logger.debug("resolve_output_dir: failed to expand download_path_default value %r: %s", default_output, exc, exc_info=True)
+
     # First try explicit temp setting from config
     temp_value = config.get("temp")
     if temp_value: