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config.py

@@ -0,0 +1,103 @@
+import json
+import os
+import sys
+
+
+def _get_app_dir():
+    if getattr(sys, 'frozen', False):
+        return os.path.dirname(sys.executable)
+    return os.path.dirname(os.path.abspath(__file__))
+
+
+def _get_config_path():
+    return os.path.join(_get_app_dir(), "config.json")
+
+
+DEFAULT_CONFIG = {
+    "api": {
+        "url": "http://localhost:8080/wallpaper",
+        "mode": "direct",
+        "json_image_field": "url",
+        "timeout": 30,
+    },
+    "wallpaper": {
+        "fill_style": "fill",
+        "cache_dir": "./cache",
+        "max_cache_files": 10,
+        "show_notification": True,
+    },
+    "auto_refresh": {
+        "enabled": False,
+        "interval_minutes": 10,
+    },
+}
+
+_config = None
+
+
+def _resolve_path(path: str) -> str:
+    if os.path.isabs(path):
+        return path
+    return os.path.normpath(os.path.join(_get_app_dir(), path))
+
+
+def load() -> dict:
+    global _config
+    if _config is not None:
+        return _config
+    config_path = _get_config_path()
+    if os.path.exists(config_path):
+        with open(config_path, "r", encoding="utf-8") as f:
+            _config = json.load(f)
+    else:
+        _config = DEFAULT_CONFIG
+    merged = dict(DEFAULT_CONFIG)
+    _deep_merge(merged, _config)
+    _config = merged
+    return _config
+
+
+def save(cfg: dict = None) -> None:
+    global _config
+    if cfg is not None:
+        _config = cfg
+    with open(_get_config_path(), "w", encoding="utf-8") as f:
+        json.dump(_config, f, indent=4, ensure_ascii=False)
+
+
+def reload() -> dict:
+    global _config
+    _config = None
+    return load()
+
+
+def get(path: str, default=None):
+    cfg = load()
+    keys = path.split(".")
+    for k in keys:
+        if isinstance(cfg, dict):
+            cfg = cfg.get(k)
+            if cfg is None:
+                return default
+        else:
+            return default
+    return cfg
+
+
+def set_(path: str, value):
+    global _config
+    cfg = load()
+    keys = path.split(".")
+    d = cfg
+    for k in keys[:-1]:
+        d = d.setdefault(k, {})
+    d[keys[-1]] = value
+    save(cfg)
+
+
+def _deep_merge(base, override):
+    for key, value in override.items():
+        if key in base and isinstance(base[key], dict) and isinstance(value, dict):
+            _deep_merge(base[key], value)
+        else:
+            base[key] = value