Remove "I AM NOT DONE" and the verify mode and add AppState

1 files changed, 0 insertions, 68 deletions

diff --git a/src/state_file.rs b/src/state_file.rs
deleted file mode 100644
index 6b80354..0000000
--- a/src/state_file.rs
+++ /dev/null
@@ -1,68 +0,0 @@
-use anyhow::{bail, Context, Result};
-use serde::{Deserialize, Serialize};
-use std::fs;
-
-use crate::exercise::Exercise;
-
-#[derive(Serialize, Deserialize)]
-#[serde(deny_unknown_fields)]
-pub struct StateFile {
-    next_exercise_ind: usize,
-    progress: Vec<bool>,
-}
-
-const BAD_INDEX_ERR: &str = "The next exercise index is higher than the number of exercises";
-
-impl StateFile {
-    fn read(exercises: &[Exercise]) -> Option<Self> {
-        let file_content = fs::read(".rustlings-state.json").ok()?;
-
-        let slf: Self = serde_json::de::from_slice(&file_content).ok()?;
-
-        if slf.progress.len() != exercises.len() || slf.next_exercise_ind >= exercises.len() {
-            return None;
-        }
-
-        Some(slf)
-    }
-
-    pub fn read_or_default(exercises: &[Exercise]) -> Self {
-        Self::read(exercises).unwrap_or_else(|| Self {
-            next_exercise_ind: 0,
-            progress: vec![false; exercises.len()],
-        })
-    }
-
-    fn write(&self) -> Result<()> {
-        let mut buf = Vec::with_capacity(1024);
-        serde_json::ser::to_writer(&mut buf, self).context("Failed to serialize the state")?;
-        fs::write(".rustlings-state.json", buf)
-            .context("Failed to write the state file `.rustlings-state.json`")?;
-
-        Ok(())
-    }
-
-    #[inline]
-    pub fn next_exercise_ind(&self) -> usize {
-        self.next_exercise_ind
-    }
-
-    pub fn set_next_exercise_ind(&mut self, ind: usize) -> Result<()> {
-        if ind >= self.progress.len() {
-            bail!(BAD_INDEX_ERR);
-        }
-        self.next_exercise_ind = ind;
-        self.write()
-    }
-
-    #[inline]
-    pub fn progress(&self) -> &[bool] {
-        &self.progress
-    }
-
-    pub fn reset(&mut self, ind: usize) -> Result<()> {
-        let done = self.progress.get_mut(ind).context(BAD_INDEX_ERR)?;
-        *done = false;
-        self.write()
-    }
-}