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use std::env;
use std::path::PathBuf;
#[derive(Debug, Clone)]
pub struct Config {
pub database_url: String,
#[allow(dead_code)]
pub openweathermap_api_key: Option<String>,
pub admin_token: Option<String>,
pub server_port: u16,
pub server_host: String,
pub log_level: String,
}
impl Config {
pub fn from_env() -> Self {
let database_url = Self::get_database_url();
let openweathermap_api_key = env::var("OPENWEATHERMAP_API_KEY").ok();
let admin_token = env::var("ADMIN_TOKEN").ok();
let server_port = env::var("PORT")
.unwrap_or_else(|_| "4000".to_string())
.parse()
.unwrap_or(4000);
let server_host = env::var("HOST").unwrap_or_else(|_| "0.0.0.0".to_string());
let log_level = env::var("LOG_LEVEL").unwrap_or_else(|_| "info".to_string());
Self {
database_url,
openweathermap_api_key,
admin_token,
server_port,
server_host,
log_level,
}
}
fn get_database_url() -> String {
// First, check if DATABASE_URL is explicitly set
if let Ok(url) = env::var("DATABASE_URL") {
return url;
}
// If not set, construct the path using XDG_DATA_HOME or fallback
let data_dir = if let Ok(xdg_data_home) = env::var("XDG_DATA_HOME") {
PathBuf::from(xdg_data_home)
} else {
// Fallback to ~/.local/share
let home = env::var("HOME")
.unwrap_or_else(|_| env::var("USERPROFILE").unwrap_or_else(|_| "/tmp".to_string()));
PathBuf::from(home).join(".local").join("share")
};
let db_path = data_dir.join("silmataivas").join("silmataivas.db");
// Ensure the directory exists
if let Some(parent) = db_path.parent() {
let _ = std::fs::create_dir_all(parent);
}
format!("sqlite://{}", db_path.display())
}
#[allow(dead_code)]
pub fn validate(&self) -> Result<(), String> {
if self.openweathermap_api_key.is_none() {
return Err("OPENWEATHERMAP_API_KEY environment variable is required".to_string());
}
Ok(())
}
#[allow(dead_code)]
pub fn validate_optional(&self) -> Result<(), String> {
// For optional validation (e.g., during development)
Ok(())
}
}
#[cfg(test)]
mod tests {
use super::*;
use std::env;
use std::sync::Once;
static INIT: Once = Once::new();
fn setup() {
INIT.call_once(|| {
// Clear all environment variables that might interfere with tests
unsafe {
env::remove_var("DATABASE_URL");
env::remove_var("XDG_DATA_HOME");
env::remove_var("PORT");
env::remove_var("HOST");
env::remove_var("LOG_LEVEL");
}
});
// Clear environment variables before each test
unsafe {
env::remove_var("DATABASE_URL");
env::remove_var("XDG_DATA_HOME");
env::remove_var("PORT");
env::remove_var("HOST");
env::remove_var("LOG_LEVEL");
}
}
#[test]
fn test_database_url_fallback() {
setup();
let home = env::var("HOME").unwrap_or_else(|_| "/tmp".to_string());
let expected_path = format!("sqlite://{home}/.local/share/silmataivas/silmataivas.db");
let config = Config::from_env();
assert_eq!(config.database_url, expected_path);
}
#[test]
fn test_database_url_xdg_data_home() {
setup();
unsafe {
env::set_var("XDG_DATA_HOME", "/custom/data/path");
}
let expected_path = "sqlite:///custom/data/path/silmataivas/silmataivas.db";
let config = Config::from_env();
assert_eq!(config.database_url, expected_path);
}
#[test]
fn test_database_url_explicit() {
setup();
unsafe {
env::set_var("DATABASE_URL", "sqlite:///explicit/path.db");
}
let config = Config::from_env();
assert_eq!(config.database_url, "sqlite:///explicit/path.db");
}
#[test]
fn test_server_config() {
setup();
unsafe {
env::set_var("PORT", "8080");
env::set_var("HOST", "127.0.0.1");
env::set_var("LOG_LEVEL", "debug");
}
let config = Config::from_env();
assert_eq!(config.server_port, 8080);
assert_eq!(config.server_host, "127.0.0.1");
assert_eq!(config.log_level, "debug");
}
}
|
