1 files changed, 85 insertions, 0 deletions
diff --git a/bot/_bs/config.py b/bot/_bs/config.py
new file mode 100644
index 0000000..8235e38
--- /dev/null
+++ b/bot/_bs/config.py
@@ -0,0 +1,85 @@
+from collections import namedtuple
+from configparser import ConfigParser, DEFAULTSECT
+
+from .load import base_path
+
+parser = ConfigParser()
+tracked_classes = []
+prop_attribs = namedtuple('prop_attribs', 'config_name required section')
+all_props = []
+attr_map = {}
+_UNSET = object()
+has_read = False
+config_file = str(base_path / 'config.ini')
+
+
+def load_config():
+    global has_read
+    if not has_read:
+        parser.read(config_file)
+        has_read = True
+
+
+def prop_name(section, option):
+    return (section + '.' if section and section != DEFAULTSECT else '') + option
+
+
+def section(section_name: str):
+    def x(c):
+        tracked_classes.append(c)
+        c._section = section_name
+        c._props = []
+        for p in dir(c):
+            prop = getattr(c, p)
+            try:
+                prop = attr_map.get(prop, prop)
+            except:
+                continue
+            if hasattr(prop, 'config_name'):
+                s = prop.section or section_name
+                prop_info = prop_attribs(prop.config_name, prop.required, s)
+                c._props.append(prop_info)
+                all_props.append(prop_info)
+        return c()
+
+    return x
+
+
+def create_property(name, conv, section, fallback):
+    def get(self):
+        load_config()
+        s = section or getattr(self, '_section', None) or DEFAULTSECT
+        cv = parser.get(s, name, fallback=fallback)
+        if cv is _UNSET:
+            raise ValueError("Missing config option")
+        else:
+            return conv(cv)
+
+    p = property(get)
+    attrs = prop_attribs(name, fallback is _UNSET, section)
+    attr_map[p] = attrs
+    return p
+
+
+def required(name: str, conv=str, section=None):
+    return create_property(name, conv, section, _UNSET)
+
+
+def default(name: str, default_value, conv=str, section=None):
+    return create_property(name, conv, section, default_value)
+
+
+def prompt_missing_configs():
+    load_config()
+    for p in all_props:
+        if parser.get(p.section, p.config_name, fallback=_UNSET) is _UNSET:
+            if not parser.has_section(p.section):
+                parser.add_section(p.section)
+            parser.set(p.section, p.config_name,
+                       input(f"What value do you want for {prop_name(p.section, p.config_name)}: "))
+    with open(config_file, 'w') as fp:
+        parser.write(fp)
+    print('Wrote config.ini')
+
+
+__all__ = ['default', 'required', 'section', 'prompt_missing_configs']