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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 {
Self::from_env_vars(&env::vars().collect::<Vec<_>>())
}
pub fn from_env_vars(env_vars: &[(String, String)]) -> Self {
let get_env = |key: &str| {
env_vars
.iter()
.find(|(k, _)| k == key)
.map(|(_, v)| v.clone())
};
let database_url = Self::get_database_url_from_env_vars(env_vars);
let openweathermap_api_key = get_env("OPENWEATHERMAP_API_KEY");
let admin_token = get_env("ADMIN_TOKEN");
let server_port = get_env("PORT")
.unwrap_or_else(|| "4000".to_string())
.parse()
.unwrap_or(4000);
let server_host = get_env("HOST").unwrap_or_else(|| "0.0.0.0".to_string());
let log_level = get_env("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_from_env_vars(env_vars: &[(String, String)]) -> String {
let get_env = |key: &str| {
env_vars
.iter()
.find(|(k, _)| k == key)
.map(|(_, v)| v.clone())
};
// First, check if DATABASE_URL is explicitly set
if let Some(url) = get_env("DATABASE_URL") {
return url;
}
// If not set, construct the path using XDG_DATA_HOME or fallback
let data_dir = if let Some(xdg_data_home) = get_env("XDG_DATA_HOME") {
PathBuf::from(xdg_data_home)
} else {
// Fallback to ~/.local/share
let home = get_env("HOME").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);
}
// Use the correct SQLx format: sqlite:path
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::*;
#[test]
fn test_database_url_fallback() {
let env_vars = vec![("HOME".to_string(), "/home/testuser".to_string())];
let config = Config::from_env_vars(&env_vars);
let expected_path = "sqlite:/home/testuser/.local/share/silmataivas/silmataivas.db";
assert_eq!(config.database_url, expected_path);
}
#[test]
fn test_database_url_xdg_data_home() {
let env_vars = vec![("XDG_DATA_HOME".to_string(), "/custom/data/path".to_string())];
let config = Config::from_env_vars(&env_vars);
let expected_path = "sqlite:/custom/data/path/silmataivas/silmataivas.db";
assert_eq!(config.database_url, expected_path);
}
#[test]
fn test_database_url_explicit() {
let env_vars = vec![(
"DATABASE_URL".to_string(),
"sqlite:/explicit/path.db".to_string(),
)];
let config = Config::from_env_vars(&env_vars);
assert_eq!(config.database_url, "sqlite:/explicit/path.db");
}
#[test]
fn test_server_config() {
let env_vars = vec![
("PORT".to_string(), "8080".to_string()),
("HOST".to_string(), "127.0.0.1".to_string()),
("LOG_LEVEL".to_string(), "debug".to_string()),
];
let config = Config::from_env_vars(&env_vars);
assert_eq!(config.server_port, 8080);
assert_eq!(config.server_host, "127.0.0.1");
assert_eq!(config.log_level, "debug");
}
#[test]
fn test_default_values() {
let env_vars = vec![];
let config = Config::from_env_vars(&env_vars);
assert_eq!(config.server_port, 4000);
assert_eq!(config.server_host, "0.0.0.0");
assert_eq!(config.log_level, "info");
}
#[test]
fn test_home_fallback_to_tmp() {
let env_vars = vec![];
let config = Config::from_env_vars(&env_vars);
let expected_path = "sqlite:/tmp/.local/share/silmataivas/silmataivas.db";
assert_eq!(config.database_url, expected_path);
}
}
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