create results file if it doesn't exist (#32)

* create results file if not present

* update deps

Cargo.toml

@@ -7,16 +7,16 @@ edition = "2021"
 
 [dependencies]
 anyhow = "1.0.75"
-clap = { version = "4.4.3", features = ["derive"] }
+clap = { version = "4.4.6", features = ["derive"] }
 crossterm = "0.27.0"
 dirs = "5.0.1"
 mockall = "0.11.4"
-predicates = "3.0.3"
+predicates = "3.0.4"
 rand = "0.8.5"
-serde = { version = "1.0.188", features = ["derive"] }
+serde = { version = "1.0.189", features = ["derive"] }
 serde_json = "1.0.107"
 tempfile = "3.8.0"
-ratatui = "0.23"
+ratatui = "0.23.0"
 csv = "1.3.0"
 chrono = { version = "0.4.31", features = ["serde"]}
 [dev-dependencies]

README.md

@@ -2,7 +2,7 @@
 
 a _very_ minimalistic _cli_ typing test.
 
-![gif demonstraiting how the program works](https://github.com/radlinskii/donkeytype/assets/26116041/4c2a1b6d-e70e-4631-8438-9259cc780a36)
+![gif demonstrating how the program works](https://github.com/radlinskii/donkeytype/assets/26116041/4c2a1b6d-e70e-4631-8438-9259cc780a36)
 
 ## How it works
 

src/test_results.rs

@@ -15,7 +15,12 @@ use ratatui::{
 };
 use serde::{Deserialize, Serialize};
 
-use std::{fs::create_dir_all, path::PathBuf, thread::sleep, time::Duration};
+use std::{
+    fs::{create_dir_all, File},
+    path::PathBuf,
+    thread::sleep,
+    time::Duration,
+};
 
 use crate::{
     config::Config,
@@ -120,8 +125,6 @@ impl TestResults {
 
     /// saves test statistics and configuration to a file in users home directory
     pub fn save_to_file(&self) -> Result<(), anyhow::Error> {
-        create_results_dir_if_not_exist()
-            .context("Unable to ensure that results directory exist")?;
         let results_file_path =
             get_results_file_path().context("Unable to ge results file path")?;
 
@@ -429,7 +432,19 @@ fn create_results_dir_if_not_exist() -> Result<()> {
     Ok(())
 }
 
+fn create_results_file_if_not_exist() -> Result<()> {
+    let results_file_path = get_results_file_path().context("Unable to get results file path")?;
+
+    if !results_file_path.exists() {
+        File::create(results_file_path.clone()).context("Unable to create results file")?;
+    }
+
+    Ok(())
+}
+
 pub fn read_previous_results() -> Result<Vec<TestResults>> {
+    create_results_dir_if_not_exist().context("Unable to ensure that results directory exist")?;
+    create_results_file_if_not_exist().context("Unable to ensure that results file exist")?;
     let results_file_path = get_results_file_path().context("Unable to get results file path")?;
 
     let mut reader =