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config.lua
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config.lua
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--[[
mattata v2.0 - Configuration Module
Reads configuration from .env file with os.getenv() fallback.
Provides typed access to all configuration values.
]]
local config = {}
local env_values = {}
local loaded = false
-- Parse a .env file into a table
local function parse_env_file(path)
local values = {}
local file = io.open(path, 'r')
if not file then
return values
end
for line in file:lines() do
line = line:match('^%s*(.-)%s*$') -- trim
if line ~= '' and not line:match('^#') then
local key, value = line:match('^([%w_]+)%s*=%s*(.*)$')
if key then
-- Strip surrounding quotes
value = value:match('^"(.*)"$') or value:match("^'(.*)'$") or value
-- Strip inline comments (only for unquoted values)
value = value:match('^(.-)%s+#') or value
values[key] = value
end
end
end
file:close()
return values
end
-- Load .env file (called once)
function config.load(path)
path = path or '.env'
env_values = parse_env_file(path)
loaded = true
end
-- Get a string value with optional default
function config.get(key, default)
if not loaded then
config.load()
end
local value = env_values[key]
if value == nil or value == '' then
value = os.getenv(key)
end
if value == nil or value == '' then
return default
end
return value
end
-- Get a numeric value
function config.get_number(key, default)
local value = config.get(key)
if value == nil then
return default
end
return tonumber(value) or default
end
-- Get a boolean value
function config.is_enabled(key)
local value = config.get(key)
if value == nil then
return false
end
value = value:lower()
return value == 'true' or value == '1' or value == 'yes'
end
-- Get a comma-separated list as a table
function config.get_list(key)
local value = config.get(key)
if not value or value == '' then
return {}
end
local list = {}
for item in value:gmatch('[^,]+') do
item = item:match('^%s*(.-)%s*$')
if item ~= '' then
local num = tonumber(item)
table.insert(list, num or item)
end
end
return list
end
-- Convenience accessors for common config groups
function config.bot_token()
return config.get('BOT_TOKEN')
end
function config.bot_admins()
return config.get_list('BOT_ADMINS')
end
function config.bot_name()
return config.get('BOT_NAME', 'mattata')
end
function config.database()
return {
host = config.get('DATABASE_HOST', 'postgres'),
port = config.get_number('DATABASE_PORT', 5432),
database = config.get('DATABASE_NAME', 'mattata'),
user = config.get('DATABASE_USER', 'mattata'),
password = config.get('DATABASE_PASSWORD', 'changeme')
}
end
function config.redis_config()
return {
host = config.get('REDIS_HOST', 'redis'),
port = config.get_number('REDIS_PORT', 6379),
password = config.get('REDIS_PASSWORD'),
db = config.get_number('REDIS_DB', 0)
}
end
function config.polling()
return {
timeout = config.get_number('POLLING_TIMEOUT', 60),
limit = config.get_number('POLLING_LIMIT', 100)
}
end
function config.webhook()
return {
enabled = config.is_enabled('WEBHOOK_ENABLED'),
url = config.get('WEBHOOK_URL'),
port = config.get_number('WEBHOOK_PORT', 8443),
secret = config.get('WEBHOOK_SECRET')
}
end
function config.ai()
return {
enabled = config.is_enabled('AI_ENABLED'),
openai_key = config.get('OPENAI_API_KEY'),
openai_model = config.get('OPENAI_MODEL', 'gpt-4o'),
anthropic_key = config.get('ANTHROPIC_API_KEY'),
anthropic_model = config.get('ANTHROPIC_MODEL', 'claude-sonnet-4-5-20250929')
}
end
function config.debug()
return config.is_enabled('DEBUG')
end
function config.log_chat()
return config.get_number('LOG_CHAT')
end
-- Version constant
config.VERSION = '2.1'
return config

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