From db9a7a2dc1e35991c6410a1cef1ddad1c0b3c155 Mon Sep 17 00:00:00 2001
From: "Danilo M." <danix@danix.xyz>
Date: Sun, 27 Sep 2026 19:52:28 +0200
Subject: Load config with defaults, read and write per-event overrides

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
---
 cal-notif         | 51 +++++++++++++++++++++++++++++++++++++++++++++++++++
 test_cal_notif.py | 26 ++++++++++++++++++++++++++
 2 files changed, 77 insertions(+)

diff --git a/cal-notif b/cal-notif
index e7bd244..3b4556d 100755
--- a/cal-notif
+++ b/cal-notif
@@ -32,6 +32,24 @@ from pathlib import Path
 from dateutil.rrule import rrulestr
 from icalendar import Calendar, vRecur
 
+CONF_DIR = Path(os.environ.get("XDG_CONFIG_HOME", "~/.config")).expanduser() / "cal-notif"
+DEFAULTS = {
+    "calendars_dir": "~/.local/share/calendars",
+    "snooze": "5m",
+    "late": "10m",
+    "rofi_theme": "~/.config/rofi/udt/list.rasi",
+    "defaults": {"*": []},
+    "voice": {"enabled": True,
+              "model": "/data/voice-models/kokoro/kokoro-v1.0.onnx",
+              "voices": "/data/voice-models/kokoro/voices-v1.0.bin",
+              "lang": "it",
+              "blend": {"if_sara": 0.8, "af_bella": 0.2},
+              "lead_silence": 0.3,
+              "say": "Tra {in}: {summary}",
+              "say_now": "Adesso: {summary}"},
+}
+PICK_DAYS = 30
+
 # ---- durations ----
 
 DUR = re.compile(r"(?:(\d+)d)?(?:(\d+)h)?(?:(\d+)m)?")
@@ -84,6 +102,39 @@ def spoken_it(td):
 
 # ---- config ----
 
+def load_config(path=None):
+    path = path or CONF_DIR / "config.toml"
+    cfg = {k: dict(v) if isinstance(v, dict) else v for k, v in DEFAULTS.items()}
+    if path.exists():
+        with open(path, "rb") as f:
+            user = tomllib.load(f)
+        for k, v in user.items():
+            cfg[k] = {**cfg[k], **v} if k == "voice" else v
+    for k in ("snooze", "late"):             # fail early on bad durations
+        parse_duration(cfg[k])
+    for v in cfg["defaults"].values():
+        for o in (v.get("offsets", []) if isinstance(v, dict) else v):
+            parse_duration(o)
+    return cfg
+
+
+def load_overrides(path=None):
+    path = path or CONF_DIR / "overrides.toml"
+    if not path.exists():
+        return {}
+    with open(path, "rb") as f:
+        return tomllib.load(f)
+
+
+def save_overrides(ov, path=None):
+    path = path or CONF_DIR / "overrides.toml"
+    path.parent.mkdir(parents=True, exist_ok=True)
+    tmp = path.with_suffix(".tmp")
+    # JSON strings and string arrays are valid TOML, so no TOML writer is needed.
+    tmp.write_text("".join(f"{json.dumps(uid)} = {json.dumps(offs)}\n"
+                           for uid, offs in sorted(ov.items())))
+    os.replace(tmp, path)
+
 # ---- calendars ----
 
 # ---- alarms ----
diff --git a/test_cal_notif.py b/test_cal_notif.py
index f025ff4..27f60ba 100644
--- a/test_cal_notif.py
+++ b/test_cal_notif.py
@@ -53,6 +53,32 @@ def test_durations():
     assert cn.number_it(28) == "ventotto" and cn.number_it(45) == "quarantacinque"
 
 
+def test_overrides_roundtrip():
+    with tempfile.TemporaryDirectory() as d:
+        p = Path(d) / "overrides.toml"
+        ov = {"a@example.org": ["1h", "10m"], 'q"uote@example.org': []}
+        cn.save_overrides(ov, p)
+        assert cn.load_overrides(p) == ov
+        assert cn.load_overrides(Path(d) / "missing.toml") == {}
+
+
+def test_config():
+    with tempfile.TemporaryDirectory() as d:
+        p = Path(d) / "config.toml"
+        assert cn.load_config(p)["voice"]["lang"] == "it"             # no file: defaults
+        p.write_text('snooze = "15m"\n[voice]\nlang = "en-us"\n'
+                     '[defaults]\nbd = { offsets = ["1d"], voice = false }\n')
+        c = cn.load_config(p)
+        assert c["snooze"] == "15m" and c["late"] == "10m"
+        assert c["voice"]["lang"] == "en-us" and c["voice"]["lead_silence"] == 0.3  # merged
+        p.write_text('[defaults]\n"*" = ["soon"]\n')
+        try:
+            cn.load_config(p)
+            raise AssertionError
+        except ValueError:
+            pass
+
+
 if __name__ == "__main__":
     for name, fn in list(globals().items()):
         if name.startswith("test_"):
-- 
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