feat: add todo history calculation

.cspell.json

@@ -18,6 +18,7 @@
     "chartjs",
     "chrono",
     "combak",
+    "datelike",
     "dicebear",
     "docme",
     "docmeup",

src/add_missing_days.rs

@@ -0,0 +1,80 @@
+use crate::types::TodoHistory;
+use chrono::{Datelike, Duration, NaiveDate};
+use std::collections::HashSet;
+
+pub fn add_missing_days(
+    mut todo_history_data: Vec<TodoHistory>,
+    months: u32,
+    current_todo_count: usize,
+) -> Vec<TodoHistory> {
+    if todo_history_data.is_empty() {
+        let current_date = chrono::Utc::now().naive_utc().date();
+        let last_date = current_date
+            .checked_add_signed(Duration::days(30 * months as i64))
+            .unwrap_or(current_date);
+
+        let mut current_date_iter = current_date;
+        let mut updated_history = Vec::new();
+
+        while current_date_iter <= last_date {
+            updated_history.push(TodoHistory {
+                date: current_date_iter.format("%Y-%m-%d").to_string(),
+                count: current_todo_count,
+            });
+            current_date_iter = current_date_iter
+                .checked_add_signed(Duration::days(1))
+                .unwrap();
+        }
+
+        return updated_history;
+    }
+
+    let mut existing_dates = HashSet::new();
+
+    for entry in &todo_history_data {
+        let date = NaiveDate::parse_from_str(&entry.date, "%Y-%m-%d")
+            .expect("Invalid date format in history");
+        existing_dates.insert(date);
+    }
+
+    todo_history_data.sort_by(|a, b| a.date.cmp(&b.date));
+
+    let first_date = NaiveDate::parse_from_str(
+        &todo_history_data.first().unwrap().date,
+        "%Y-%m-%d",
+    )
+    .expect("Invalid date format in history");
+
+    let last_date = first_date
+        .checked_add_signed(Duration::days(30 * months as i64))
+        .unwrap_or(first_date);
+
+    let mut current_date = first_date;
+    let mut previous_commit_count = todo_history_data.first().unwrap().count;
+
+    while current_date <= last_date {
+        if !existing_dates.contains(&current_date) {
+            todo_history_data.push(TodoHistory {
+                date: current_date.format("%Y-%m-%d").to_string(),
+                count: previous_commit_count,
+            });
+        } else {
+            let matching_entry = todo_history_data.iter().find(|e| {
+                let date =
+                    NaiveDate::parse_from_str(&e.date, "%Y-%m-%d").unwrap();
+                date.year() == current_date.year()
+                    && date.month() == current_date.month()
+            });
+            if let Some(entry) = matching_entry {
+                previous_commit_count = entry.count;
+            }
+        }
+
+        current_date =
+            current_date.checked_add_signed(Duration::days(1)).unwrap();
+    }
+
+    todo_history_data.sort_by(|a, b| b.date.cmp(&a.date));
+
+    todo_history_data
+}

src/lib.rs

@@ -1,11 +1,11 @@
+pub mod add_missing_days;
 pub mod blame;
 pub mod check_git_repository;
 pub mod copy_dir_recursive;
 pub mod exec;
 pub mod get_comments;
 pub mod get_current_directory;
 pub mod get_current_exe_path;
-pub mod get_diff;
 pub mod get_files_list;
 pub mod get_history;
 pub mod get_line_from_position;
@@ -14,4 +14,6 @@ pub mod get_todoctor_version;
 pub mod identify_supported_file;
 pub mod identify_todo_comment;
 pub mod prepare_blame_data;
+pub mod remove_duplicate_dates;
 pub mod todo_keywords;
+pub mod types;