# user_id.rs - source
Source of the Rust file `src/defs/user_id.rs`.

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    use std::{
        io::Write,
        // sync::Arc,
        fmt::Debug,
        fs,
        path::{Path, PathBuf},
        io::{Error, ErrorKind},

    };
    use log::error;
    // use async_session::{MemoryStore, Session, SessionStore};
    use serde::{Deserialize, Serialize};
    //use tiitls_utils::logs::file;
    use uuid::Uuid;
    use crate::defs::{
        FILE_SCHEME,
        SID_SETTINGS_FILE,
        SID_REQUESTS_FILE,
        SID_TRACE_FILE,
    //    SID_UI_FILE,
    //    UI_SETTINGS_FILE,
    //    SidSettings,
        Config as SessionsConfig,
        TraceData,
        UserAction,
    };

    #[derive(Serialize, Deserialize, Debug, Clone, Copy)]
    pub struct UserId(Uuid);

    impl UserId {
        #[allow(dead_code)]
        pub fn new() -> Self {
            Self(Uuid::new_v4())
        }
        pub fn from(data: &str) -> Option<Self> {
            match Uuid::parse_str(data) {
                Ok(uuid) => Some(Self(uuid)),
                Err(_) => None,
            }
        }
    }

    impl std::fmt::Display for UserId {
        fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
            write!(f, "{}", self.0)
        }
    }
    impl UserId {

        /// Log user actions to config.user_store_access|reqs_store_file/user_id/config.user_store_access path
        /// Add a line with timestamp
        /// It also get ReqHeaderMap to add more data ?
        #[allow(dead_code)]
        pub fn log_user_id_action(&self, action: UserAction, sessions_config: &SessionsConfig) -> std::io::Result<()> {
            let id_path = format!("{}/{}",
                sessions_config.users_store_uri.replace(FILE_SCHEME, ""),
                self);
            if ! Path::new(&id_path).exists() {
                fs::create_dir(&id_path)?;
            }
            let now = chrono::Utc::now().timestamp().to_string();
            let (log_data, file_path) = match action {
                UserAction::Access => (
                   format!("{}\n",now),
                   format!("{}/{}",&id_path,sessions_config.user_store_access)
                ),
                UserAction::Log(info) => (
                   format!("notity:{}:{}\n",now,info),
                   format!("{}/{}",&id_path,sessions_config.user_store_access)
                ),
                UserAction::Request(info) => (
                   format!("req:{}:{}\n",now,info),
                   format!("{}/{}",&id_path,sessions_config.user_store_access)
                ),
                UserAction::View(info) => (
                   format!("view:{}:{}\n",now,info),
                   format!("{}/{}",&id_path,sessions_config.user_store_access)
                ),
                UserAction::List(info) => (
                   format!("list:{}:{}\n",now,info),
                   format!("{}/{}",&id_path,sessions_config.user_store_access)
                ),
                UserAction::Profile(info) => (
                   format!("profile:{}:{}\n",now,info),
                   format!("{}/{}",&id_path,sessions_config.user_store_access)
                ),
                UserAction::Other => (
                   format!("other:{}::\n",now),
                   format!("{}/{}",&id_path,sessions_config.user_store_access)
                ),
            };
            self.write_data(&file_path, &log_data, false)
            // if ! Path::new(&file_path).exists() {
            //     fs::write(&file_path, log_data)?;
            // } else  {
            //     let access_id_file = fs::OpenOptions::new()
            //         .write(true)
            //         .append(true) // This is needed to append to file
            //         .open(&file_path);
            //     if let Ok(mut file) = access_id_file {
            //         let _ = file.write_all(log_data.as_bytes())?;
            //     }
            // }
            // Ok(())
        }
        fn id_path(&self, file: &str, sessions_config: &SessionsConfig) -> String {
            format!("{}/{}/{}",
              sessions_config.users_store_uri.replace(FILE_SCHEME, ""),
              self,file)
        }
        #[allow(dead_code)]
        fn write_data(&self, file_path: &str, data: &str, overwrite: bool) -> std::io::Result<()> {
            let check_path = |path: &Path| -> std::io::Result<()> {
                if ! Path::new(&path).exists() {
                    if let Err(e) = std::fs::create_dir(&path) {
                        return Err(Error::new( ErrorKind::InvalidInput,
                            format!("Error create path {}: {}",&path.display(), e)
                        ));
                        // std::process::exit(2)
                    }
                }
                Ok(())
            };
            if file_path.is_empty() || data.is_empty() {
                return Err(Error::new(
                    ErrorKind::InvalidInput,
                    format!("Error save {}",&file_path)
                ));
            }
            if ! Path::new(&file_path).exists() {
                let path = PathBuf::from(&file_path);
                if let Some(dir_path) =  path.parent() {
                    if ! Path::new(&dir_path).exists() {
                        if let Some(parent_dir_path) = dir_path.parent() {
                            if ! Path::new(&parent_dir_path).exists() {
                                let res = check_path(&parent_dir_path);
                                if res.is_err() { return res; }
                            }
                        }
                        let res = check_path(&dir_path);
                        if res.is_err() { return res; }
                    }
                }
            }
            if overwrite || ! Path::new(&file_path).exists() {
                fs::write(&file_path, data)?;
                println!("Overwrite: {}",&file_path);
            } else {
                let sid_settings_file = fs::OpenOptions::new()
                    .write(true)
                    .append(true) // This is needed to append to file
                    .open(&file_path);
                if let Ok(mut file) = sid_settings_file {
                    file.write_all(data.as_bytes())?;
                }
                println!("write: {}",&file_path);
            }
            Ok(())
        }

        #[allow(dead_code)]
        pub fn sid_settings_path(&self, sessions_config: &SessionsConfig) -> String {
           self.id_path(SID_SETTINGS_FILE, sessions_config)
        }
        #[allow(dead_code)]
        pub fn sid_settings_content(&self, sessions_config: &SessionsConfig) -> String {
            let file_path = self.sid_settings_path(sessions_config);
            if ! Path::new(&file_path).exists() {
                String::from("")
            } else {
                match std::fs::read_to_string(&file_path) {
                    Ok(content) => content,
                    Err(e) => {
                        error!("Error read {}: {}",&file_path,e);
                        String::from("")
                    }
                }
            }
        }
        // pub fn sid_settings(&self, sessions_config: &SessionsConfig) -> SidSettings {
        //     let file_path = self.id_path(SID_SETTINGS_FILE, sessions_config);
        //     if Path::new(&file_path).exists() {
        //         match std::fs::read_to_string(&file_path) {
        //             Ok(content) => sessions_config.sid_settings.from_json(&content,&file_path),
        //             Err(e) => {
        //                 error!("Error read {}: {}",&file_path,e);
        //                 sessions_config.sid_settings.to_owned()
        //             }
        //         }
        //     } else {
        //         //dbg!(&sessions_config.sid_settings);
        //         sessions_config.sid_settings.to_owned()
        //     }
        // }
        // pub fn save_sid_settings(&self, sid_settings: SidSettings, sessions_config: &SessionsConfig) -> std::io::Result<()> {
        //     let file_path = self.id_path(SID_SETTINGS_FILE, sessions_config);
        //     let data = sid_settings.to_json();
        //     self.write_data(&file_path, &data, true)
        // }
        #[allow(dead_code)]
        pub fn save_trace_data(&self, trace_data: TraceData, sessions_config: &SessionsConfig) -> std::io::Result<()> {
            // let file_curenv_path = self.id_path(&format!("{}/{}",trace_data.server,SID_CURENV_FILE), sessions_config);
            // let res_curenv = self.write_data(&file_curenv_path, &trace_data.curenv, true);
            // let _ = res_curenv.as_ref().unwrap_or_else(|e|{
            //     println!("Error save trace curenv: {}",&e);
            //     &()
            // });
            // if res_curenv.is_err() {
            //     return res_curenv;
            // }
            // if trace_data.ui.len() > 0 {
            //     let file_ui_path = self.id_path(&format!("{}/{}",trace_data.server,SID_UI_FILE), sessions_config);
            //     let res_ui = self.write_data(&file_ui_path, &trace_data.ui, true);
            //     let _ = res_ui.as_ref().unwrap_or_else(|e|{
            //         println!("Error save trace ui: {}",&e);
            //         &()
            //     });
            //     if res_ui.is_err() { return res_ui; }
            // }
            let file_trace_path = self.id_path(&format!("{}/{}",trace_data.server,SID_TRACE_FILE), sessions_config);
            let contents = trace_data.contents_to_json();
            let mut result = Ok(());
            let lines = contents.len() - 1;
            for (idx, line) in contents.iter().enumerate() {
                let prfx = if idx == 0 && Path::new(&file_trace_path).exists() {
                  ",\n"
                } else {
                  ""
                };
                let sfx = if idx == lines {
                    ""
                } else {
                    ",\n"
                };
               result = self.write_data(
                    &file_trace_path,
                    format!("{}{}{}",&prfx,&line,&sfx).as_str(),
                    false
                );
                let _ = result.as_ref().unwrap_or_else(|e|{
                    println!("Error save trace contets: {} line {}",&e, &idx);
                    &()
                });
                if result.is_err() {
                    break;
                }
            }
            result
        }
        #[allow(dead_code)]
        pub fn save_sid_request(&self, data: &str, sessions_config: &SessionsConfig) -> std::io::Result<()> {
            let file_path = self.id_path(SID_REQUESTS_FILE, sessions_config);
            println!("---- {}",&file_path);
            self.write_data(&file_path, &data, false)
        }
        #[allow(dead_code)]
        pub fn read_sid_requests(&self, sessions_config: &SessionsConfig) -> Result<Vec<String>, Box<dyn std::error::Error>> {
            let file_path = self.id_path(SID_REQUESTS_FILE, sessions_config);
            let data = fs::read_to_string(file_path)?;
            Ok(data.split("\n").map(|s| s.to_string()).collect())
        }
    }