added filesystem abstraction layer and implemented basic filesystem - testing not complete yet, still features missing

.vscode/settings.json

@@ -6,8 +6,8 @@
     "files.trimFinalNewlines": true,
     "files.trimTrailingWhitespace": true,
     "rust-analyzer.cargo.features": [
-        "llm",
-        "native"
+        "native",
+        "llm"
     ],
     "rust-analyzer.cargo.noDefaultFeatures": true,
     "rust-analyzer.cargo.allFeatures": false

src/editors/asset_editor.rs

@@ -1,6 +1,10 @@
 use egui::{TextEdit, vec2};
 
-use crate::{PROJECT_FOLDER, util};
+use crate::{
+    PROJECT_FOLDER,
+    filesystem::{FILESYSTEM, FsError, LegacyFileSystem},
+    util,
+};
 
 #[derive(Debug, Clone)]
 pub struct Asset {
@@ -25,15 +29,14 @@ impl Asset {
         println!("old_path: {old_path:?}");
         println!("new_path: {new_path:?}");
 
-        // move from src dir to name path
-        if let Err(err) = std::fs::rename(&old_path, &new_path) {
+        if let Err(FsError::Io(err)) = FILESYSTEM.rename(&old_path, &new_path) {
             match err.kind() {
                 std::io::ErrorKind::NotFound => {
                     let dir = new_path.parent().unwrap();
                     if !dir.exists() {
-                        std::fs::create_dir_all(dir).unwrap();
+                        FILESYSTEM.mkdir(dir).unwrap();
                     }
-                    std::fs::rename(&old_path, &new_path).unwrap();
+                    FILESYSTEM.rename(&old_path, &new_path).unwrap();
                 }
                 _ => panic!("Failed to rename file: {err}"),
             }
@@ -73,7 +76,7 @@ impl Asset {
 
             ui.separator();
 
-            if let Ok(bytes) = std::fs::read(Self::path(&self.name)) {
+            if let Ok(bytes) = FILESYSTEM.read_bytes(&Self::path(&self.name)) {
                 let image_source = egui::ImageSource::Bytes {
                     uri: std::borrow::Cow::Owned(self.name.clone()),
                     bytes: bytes.into(),

src/editors/content_editor.rs

@@ -1,10 +1,12 @@
+use std::path::Path;
+
 use egui::TextEdit;
 use egui_commonmark::{CommonMarkCache, CommonMarkViewer};
 use serde::{self, Deserialize, Serialize};
 
 use crate::{
-    PROJECT_FOLDER,
     editors::{settings_editor::ProjectSettings, tags::Tag},
+    filesystem::{FILESYSTEM, LegacyFileSystem},
     util,
 };
 
@@ -43,10 +45,7 @@ impl Clone for MainEditor {
 
 #[derive(Serialize, Deserialize, Clone, Debug)]
 pub struct ContentSection {
-    #[serde(default)]
     pub title: String,
-
-    #[serde(default)]
     pub id: String,
 
     #[serde(default)]
@@ -80,21 +79,16 @@ impl ContentSection {
     }
 
     pub fn save(&mut self) -> Result<(), Box<dyn std::error::Error>> {
-        let path = PROJECT_FOLDER
-            .join("documents")
-            .join(format!("{}.json", &self.id));
-
-        let content = serde_json::to_string_pretty(self)?;
-        std::fs::write(path, content)?;
+        FILESYSTEM.write(
+            Path::new(&format!("documents/{id}.json", id = &self.id)),
+            self.clone(),
+        )?;
         self.saved = true;
         Ok(())
     }
 
     pub fn load(id: &str) -> Result<Self, Box<dyn std::error::Error>> {
-        let path = PROJECT_FOLDER.join("documents").join(format!("{id}.json"));
-
-        let content = std::fs::read_to_string(&path)?;
-        let mut section: Self = serde_json::from_str(&content)?;
+        let mut section: Self = FILESYSTEM.read(Path::new(&format!("documents/{id}.json")))?;
         section.saved = true;
         section.id = id.to_string();
         Ok(section)
@@ -175,12 +169,12 @@ impl MainEditor {
 
                 // delete button
                 if ui.button("Delete").clicked() {
-                    std::fs::remove_file(
-                        PROJECT_FOLDER
-                            .join("documents")
-                            .join(format!("{}.json", self.content.id)),
-                    )
-                    .unwrap();
+                    FILESYSTEM
+                        .delete(Path::new(&format!(
+                            "documents/{id}.json",
+                            id = &self.content.id
+                        )))
+                        .unwrap();
 
                     *self = Self::new();
                 }
@@ -195,7 +189,9 @@ impl MainEditor {
 
                 // assistant toggle
                 #[cfg(feature = "llm")]
-                ui.checkbox(&mut self.show_ai, "AI Assistant");
+                if project.ai_enabled() {
+                    ui.checkbox(&mut self.show_ai, "AI Assistant");
+                }
 
                 // editor toggle
                 ui.checkbox(&mut self.editor_separate_window, "Pop out editor");
@@ -243,7 +239,7 @@ impl MainEditor {
         ui.separator();
 
         #[cfg(feature = "llm")]
-        if self.show_ai {
+        if self.show_ai && project.ai_enabled() {
             let dialog = &mut self.dialog;
 
             dialog.content = self.content.content.clone();
@@ -324,7 +320,7 @@ impl MainEditor {
             });
     }
 
-    fn editor_ui(&mut self, ui: &mut egui::Ui, project: &mut ProjectSettings) {
+    fn editor_ui(&mut self, ui: &mut egui::Ui, _project: &mut ProjectSettings) {
         let _response = egui::ScrollArea::both()
             .auto_shrink([false, false])
             .id_salt("editor_scroll")
@@ -342,7 +338,7 @@ impl MainEditor {
 
                         ui.set_min_width(max_width as f32);
 
-                        ui.add(
+                        let response = ui.add(
                             TextEdit::multiline(&mut self.content.content)
                                 .id_source("MainEditor_editor")
                                 .font(egui::TextStyle::Monospace)
@@ -352,6 +348,9 @@ impl MainEditor {
                                 .hint_text("Type here...")
                                 .desired_width(max_width as f32),
                         );
+                        if response.changed() {
+                            self.content.saved = false;
+                        }
                     });
                 });
             });

src/editors/note_editor.rs

@@ -1,13 +1,19 @@
-use std::fs;
+use std::path::Path;
 
 use egui::TextEdit;
 use serde::{Deserialize, Serialize};
 
-use crate::{PROJECT_FOLDER, editors::tags::Tag, util};
+use crate::{
+    editors::tags::Tag,
+    filesystem::{FILESYSTEM, LegacyFileSystem},
+    util,
+};
 
 #[derive(Debug, Serialize, Deserialize, Clone)]
 pub struct Note {
+    pub id: String,
     pub name: String,
+
     #[serde(default)]
     pub content: String,
     #[serde(default)]
@@ -17,12 +23,14 @@ pub struct Note {
     pub tags: Vec<String>,
 
     #[serde(skip)]
-    pub id: String,
-
-    #[serde(skip)]
+    #[serde(default = "default_saved")]
     pub saved: bool,
 }
 
+pub fn default_saved() -> bool {
+    true
+}
+
 impl Default for Note {
     fn default() -> Self {
         Self {
@@ -48,18 +56,15 @@ impl Note {
         }
     }
 
-    pub fn save(&mut self) -> std::io::Result<()> {
+    pub fn save(&mut self) -> Result<(), Box<dyn std::error::Error>> {
         let id = &self.id;
-        let path = PROJECT_FOLDER.join("notes").join(format!("{id}.json"));
-        fs::write(path, serde_json::to_string(&self)?)?;
+        FILESYSTEM.write(Path::new(&format!("notes/{id}.json")), self.clone())?;
         self.saved = true;
         Ok(())
     }
 
-    pub fn load(id: &str) -> std::io::Result<Self> {
-        let path = PROJECT_FOLDER.join("notes").join(format!("{id}.json"));
-        let content = fs::read_to_string(path)?;
-        let mut note: Note = serde_json::from_str(&content)?;
+    pub fn load(id: &str) -> Result<Self, Box<dyn std::error::Error>> {
+        let mut note: Self = FILESYSTEM.read(Path::new(&format!("notes/{id}.json")))?;
         note.id = id.to_string();
         note.saved = true;
         Ok(note)

src/editors/object_editor.rs

@@ -1,6 +1,7 @@
 use core::f32;
 use egui::{CollapsingHeader, RichText, Sense, TextEdit, Ui, UiBuilder, vec2};
 use serde::{Deserialize, Serialize};
+use std::path::Path;
 
 use crate::{
     PROJECT_FOLDER, RightPanelContent,
@@ -8,6 +9,7 @@ use crate::{
         tags::Tag,
         template_editor::{FieldValue, Template},
     },
+    filesystem::{FILESYSTEM, LegacyFileSystem},
     util,
 };
 
@@ -81,21 +83,14 @@ impl ObjectInstance {
     }
 
     pub fn save(&mut self) -> Result<(), Box<dyn std::error::Error>> {
-        let path = PROJECT_FOLDER
-            .join("objects")
-            .join(format!("{}.json", &self.id));
-
-        let content = serde_json::to_string_pretty(self)?;
-        std::fs::write(&path, content)?;
+        let id = &self.id;
+        FILESYSTEM.write(Path::new(&format!("objects/{id}.json")), self.clone())?;
         self.saved = true;
         Ok(())
     }
 
     pub fn load(id: &str) -> Result<Self, Box<dyn std::error::Error>> {
-        let path = PROJECT_FOLDER.join("objects").join(format!("{id}.json"));
-
-        let content = std::fs::read_to_string(&path)?;
-        let mut instance: ObjectInstance = serde_json::from_str(&content)?;
+        let mut instance: Self = FILESYSTEM.read(Path::new(&format!("objects/{id}.json")))?;
         instance.saved = true;
         Ok(instance)
     }
@@ -137,12 +132,10 @@ impl ObjectInstance {
                 }
 
                 if ui.button("Delete").clicked() {
-                    std::fs::remove_file(
-                        PROJECT_FOLDER
-                            .join("objects")
-                            .join(format!("{}.json", self.id)),
-                    )
-                    .unwrap();
+                    let id = &self.id;
+                    FILESYSTEM
+                        .delete(Path::new(&format!("objects/{id}.json")))
+                        .expect("Failed to delete object");
 
                     *right_panel = Some(RightPanelContent::None);
                 }
@@ -274,7 +267,7 @@ impl ObjectInstance {
                     if !value.is_empty() {
                         let path = PROJECT_FOLDER.join("assets").join(&value);
 
-                        if let Ok(bytes) = std::fs::read(&path) {
+                        if let Ok(bytes) = FILESYSTEM.read_bytes(&path) {
                             let image_source = egui::ImageSource::Bytes {
                                 uri: std::borrow::Cow::Owned(path.to_str().unwrap().to_string()),
                                 bytes: bytes.into(),

src/editors/settings_editor.rs

@@ -2,9 +2,12 @@ use chrono::NaiveDate;
 use egui::TextEdit;
 use egui_extras::DatePickerButton;
 use serde::{Deserialize, Serialize};
-use std::{io::Read, path::PathBuf, sync::LazyLock};
+use std::path::{Path, PathBuf};
 
-use crate::{PROJECT_FOLDER, util::saved_status};
+use crate::{
+    filesystem::{FILESYSTEM, LegacyFileSystem},
+    util::saved_status,
+};
 
 #[derive(Serialize, Deserialize, Clone)]
 pub struct ProjectSettings {
@@ -14,6 +17,7 @@ pub struct ProjectSettings {
     project_description: String,
 
     // AI settings
+    #[cfg(feature = "llm")]
     pub ai_context: String,
 
     // settings
@@ -29,17 +33,6 @@ pub struct ProjectSettings {
     pub saved: bool,
 }
 
-static GLOBAL_SETTINGS_PATH: LazyLock<String> =
-    LazyLock::new(|| match std::env::var("XDG_CONFIG_HOME") {
-        Ok(path) => path + "/worldcoder/settings.json",
-        Err(_) => {
-            eprintln!(
-                "XDG_CONFIG_HOME not set, using default path of ~/.config/worldcoder/settings.json"
-            );
-            "~/.config/worldcoder/settings.json".to_string()
-        }
-    });
-
 impl ProjectSettings {
     #[allow(dead_code)]
     pub fn new() -> Self {
@@ -47,25 +40,10 @@ impl ProjectSettings {
     }
 
     pub fn load() -> Self {
-        let project_path = PROJECT_FOLDER.join("project.json");
-
-        let mut file = if let Ok(file) = std::fs::File::open(project_path) {
-            file
-        } else {
-            return Self::default();
-        };
-
-        let mut contents = String::new();
-        file.read_to_string(&mut contents).unwrap();
-        if let Ok(mut proj) = serde_json::from_str::<Self>(&contents) {
+        if let Ok(mut proj) = FILESYSTEM.read::<Self>(Path::new("project.json")) {
             proj.saved = true;
-
-            // load global settings
             proj.global_settings = EditorSettings::load_global();
-
-            // load local overrides
             proj.local_overrides = EditorSettings::load();
-
             proj
         } else {
             Self::default()
@@ -73,9 +51,9 @@ impl ProjectSettings {
     }
 
     pub fn save(&mut self) {
-        let project_path = PROJECT_FOLDER.join("project.json");
-        let content = serde_json::to_string_pretty(self).unwrap();
-        std::fs::write(project_path, content).unwrap();
+        FILESYSTEM
+            .write(Path::new("project.json"), self.clone())
+            .unwrap();
 
         self.global_settings.save();
         self.local_overrides.save();
@@ -83,7 +61,93 @@ impl ProjectSettings {
         self.saved = true;
     }
 
-    #[allow(dead_code)]
+    #[allow(unused)]
+    fn config_str_override(
+        label: &str,
+        field: &mut Option<String>,
+        default: &str,
+        ui: &mut egui::Ui,
+    ) -> bool {
+        let mut changed = false;
+
+        ui.label(label);
+
+        if let Some(value) = field {
+            if ui.text_edit_singleline(value).changed() {
+                changed = true;
+            };
+
+            if ui.button("Remove Override").clicked() {
+                *field = None;
+                changed = true;
+            }
+        } else if ui.button("Override").clicked() {
+            *field = Some(default.to_string());
+            changed = true;
+        }
+
+        ui.end_row();
+        changed
+    }
+
+    #[allow(unused)]
+    fn config_bool_override(
+        label: &str,
+        field: &mut Option<bool>,
+        default: bool,
+        ui: &mut egui::Ui,
+    ) -> bool {
+        let mut changed = false;
+
+        ui.label(label);
+
+        if let Some(value) = field {
+            if ui.checkbox(value, "Enable AI").changed() {
+                changed = true;
+            };
+
+            if ui.button("Remove Override").clicked() {
+                *field = None;
+                changed = true;
+            }
+        } else if ui.button("Override").clicked() {
+            *field = Some(default);
+            changed = true;
+        }
+
+        ui.end_row();
+        changed
+    }
+
+    #[allow(unused)]
+    fn config_str(field: &mut String, label: &str, ui: &mut egui::Ui) -> bool {
+        let mut changed = false;
+
+        ui.label(label);
+        if ui.text_edit_singleline(field).changed() {
+            changed = true;
+        }
+
+        ui.end_row();
+
+        changed
+    }
+
+    #[allow(unused)]
+    fn config_bool(label: &str, field: &mut bool, ui: &mut egui::Ui) -> bool {
+        let mut changed = false;
+
+        ui.label(label);
+        if ui.checkbox(field, "Enable AI").changed() {
+            changed = true;
+        }
+
+        ui.end_row();
+
+        changed
+    }
+
+    #[allow(unused)]
     pub fn ui(&mut self, ui: &mut egui::Ui) {
         // save state
         saved_status(ui, self.saved, "N/A", "Project Settings");
@@ -91,6 +155,10 @@ impl ProjectSettings {
             self.save();
         }
 
+        if ui.input(|i| i.key_pressed(egui::Key::S) && i.modifiers.ctrl) {
+            self.save();
+        }
+
         ui.separator();
 
         // project settings
@@ -99,80 +167,65 @@ impl ProjectSettings {
             .striped(true)
             .num_columns(2)
             .show(ui, |ui| {
-                ui.label("Project Name");
-                ui.text_edit_singleline(&mut self.project_name);
-
-                ui.end_row();
-
-                ui.label("Project Author");
-                ui.text_edit_singleline(&mut self.project_author);
-
-                ui.end_row();
-
-                ui.label("Project Description");
-                ui.text_edit_singleline(&mut self.project_description);
-
-                ui.end_row();
+                if Self::config_str(&mut self.project_name, "Project Name", ui) { self.saved = false };
+                if Self::config_str(&mut self.project_author, "Project Author", ui) { self.saved = false };
+                if Self::config_str(&mut self.project_description, "Project Description", ui) { self.saved = false };
 
                 ui.label("Date");
-                ui.add(DatePickerButton::new(&mut self.date));
-
+                if ui.add(DatePickerButton::new(&mut self.date)).changed() { self.saved = false };
                 ui.end_row();
 
-                ui.label("AI Context Prompt");
-                ui.add(TextEdit::multiline(&mut self.ai_context)
-                    .font(egui::TextStyle::Monospace)
-                    .interactive(true)
-                    .frame(false)
-                    .lock_focus(true)
-                    .hint_text("What is this project about? what should the LLM know when generating content for this project?"));
-
-                ui.end_row();
+                #[cfg(feature = "llm")]
+                {
+                    ui.label("AI Context Prompt");
+                    if ui.add(TextEdit::multiline(&mut self.ai_context)
+                        .font(egui::TextStyle::Monospace)
+                        .interactive(true)
+                        .frame(false)
+                        .lock_focus(true)
+                        .hint_text("What is this project about? what should the LLM know when generating content for this project?")).changed() { self.saved = false };
+                    ui.end_row();
+                }
             });
 
         ui.separator();
 
         // local settings overrides for editor
+
         ui.heading("Local Overrides");
         egui::Grid::new("local overrides")
             .striped(true)
             .num_columns(2)
             .show(ui, |ui| {
-                ui.label("Enable AI");
-                if let Some(ai_enabled) = &mut self.local_overrides.ai_enabled {
-                    ui.checkbox(ai_enabled, "Enable AI");
-                    if ui.button("Remove Override").clicked() {
-                        self.local_overrides.ai_enabled = None;
-                    }
-                } else if ui.button("Override").clicked() {
-                    self.local_overrides.ai_enabled = Some(true);
+                #[cfg(feature = "llm")]
+                if ProjectSettings::config_str_override(
+                    "LLM API URI",
+                    &mut self.local_overrides.llm_api_uri,
+                    "http://localhost:1234",
+                    ui,
+                ) {
+                    self.saved = false;
                 }
 
-                ui.end_row();
-
-                ui.label("LLM API URI");
-                if let Some(llm_api_uri) = &mut self.local_overrides.llm_api_uri {
-                    ui.text_edit_singleline(llm_api_uri);
-                    if ui.button("Remove Override").clicked() {
-                        self.local_overrides.llm_api_uri = None;
-                    }
-                } else if ui.button("Override").clicked() {
-                    self.local_overrides.llm_api_uri = Some("http://localhost:1234".to_string());
+                #[cfg(feature = "llm")]
+                if ProjectSettings::config_str_override(
+                    "LLM API Key",
+                    &mut self.local_overrides.llm_api_key,
+                    "1234",
+                    ui,
+                ) {
+                    self.saved = false;
                 }
 
-                ui.end_row();
-
-                ui.label("LLM API Key");
-                if let Some(llm_api_key) = &mut self.local_overrides.llm_api_key {
-                    ui.text_edit_singleline(llm_api_key);
-                    if ui.button("Remove Override").clicked() {
-                        self.local_overrides.llm_api_key = None;
-                    }
-                } else if ui.button("Override").clicked() {
-                    self.local_overrides.llm_api_key = Some("1234".to_string());
+                #[cfg(feature = "llm")]
+                if ProjectSettings::config_bool_override(
+                    "Enable AI",
+                    &mut self.local_overrides.ai_enabled,
+                    true,
+                    ui,
+                ) {
+                    self.saved = false;
                 }
-
-                ui.end_row();
             });
 
         ui.separator();
@@ -183,23 +236,37 @@ impl ProjectSettings {
             .striped(true)
             .num_columns(2)
             .show(ui, |ui| {
-                ui.label("Enable AI");
-                ui.checkbox(&mut self.global_settings.ai_enabled.unwrap(), "Enable AI");
+                #[cfg(feature = "llm")]
+                if Self::config_bool(
+                    "Enable AI",
+                    self.global_settings.ai_enabled.as_mut().unwrap(),
+                    ui,
+                ) {
+                    self.saved = false;
+                }
 
-                ui.end_row();
+                #[cfg(feature = "llm")]
+                if Self::config_str(
+                    self.global_settings.llm_api_uri.as_mut().unwrap(),
+                    "LLM API URI",
+                    ui,
+                ) {
+                    self.saved = false
+                };
 
-                ui.label("LLM API URI");
-                ui.text_edit_singleline(self.global_settings.llm_api_uri.as_mut().unwrap());
-
-                ui.end_row();
-
-                ui.label("LLM API Key");
-                ui.text_edit_singleline(self.global_settings.llm_api_key.as_mut().unwrap());
-
-                ui.end_row();
+                #[cfg(feature = "llm")]
+                if Self::config_str(
+                    self.global_settings.llm_api_key.as_mut().unwrap(),
+                    "LLM API Key",
+                    ui,
+                ) {
+                    self.saved = false
+                };
             });
     }
 
+    #[cfg(feature = "llm")]
+    #[allow(unused)]
     pub fn ai_enabled(&mut self) -> bool {
         let client = reqwest::blocking::Client::new();
 
@@ -236,8 +303,9 @@ impl Default for ProjectSettings {
             project_author: "Your Name".to_string(),
             project_description: "Description of your project".to_string(),
 
+            #[cfg(feature = "llm")]
             ai_context: "".to_string(),
-            global_settings: EditorSettings::new(),
+            global_settings: EditorSettings::default(),
             local_overrides: EditorSettings::new(),
 
             // window state
@@ -249,11 +317,15 @@ impl Default for ProjectSettings {
 
 #[derive(Serialize, Deserialize, Clone)]
 pub struct EditorSettings {
-    pub llm_api_uri: Option<String>,
-    pub llm_api_key: Option<String>,
-    pub ai_enabled: Option<bool>,
     pub dark_theme: Option<bool>,
 
+    #[cfg(feature = "llm")]
+    pub llm_api_uri: Option<String>,
+    #[cfg(feature = "llm")]
+    pub llm_api_key: Option<String>,
+    #[cfg(feature = "llm")]
+    pub ai_enabled: Option<bool>,
+
     #[serde(skip)]
     is_global: bool,
 }
@@ -261,8 +333,11 @@ pub struct EditorSettings {
 impl Default for EditorSettings {
     fn default() -> Self {
         Self {
+            #[cfg(feature = "llm")]
             llm_api_uri: Some("http://localhost:1234".to_string()),
+            #[cfg(feature = "llm")]
             llm_api_key: Some("".to_string()),
+            #[cfg(feature = "llm")]
             ai_enabled: Some(true),
             dark_theme: Some(true),
 
@@ -275,8 +350,11 @@ impl Default for EditorSettings {
 impl EditorSettings {
     pub fn new() -> Self {
         Self {
+            #[cfg(feature = "llm")]
             llm_api_uri: None,
+            #[cfg(feature = "llm")]
             llm_api_key: None,
+            #[cfg(feature = "llm")]
             ai_enabled: None,
             dark_theme: None,
 
@@ -285,43 +363,34 @@ impl EditorSettings {
     }
 
     pub fn load() -> Self {
-        let path = PROJECT_FOLDER.join("settings.json");
-        let mut file = if let Ok(file) = std::fs::File::open(path) {
-            file
-        } else {
-            return Self::default();
-        };
+        if let Ok(mut settings) = FILESYSTEM.read::<Self>(Path::new("settings.json")) {
+            settings.is_global = false;
+            return settings;
+        }
 
-        let mut contents = String::new();
-        file.read_to_string(&mut contents).unwrap();
-        serde_json::from_str(&contents).unwrap()
+        Self::new()
     }
 
     pub fn save(&self) {
-        let content = serde_json::to_string_pretty(self).unwrap();
-
         let path = if self.is_global {
-            PathBuf::from(GLOBAL_SETTINGS_PATH.clone())
+            FILESYSTEM.config_path()
         } else {
-            PROJECT_FOLDER.join("settings.json")
+            PathBuf::from("settings.json")
         };
 
-        std::fs::write(path, content).unwrap();
+        FILESYSTEM.write(path.as_path(), self.clone()).unwrap()
     }
 
     pub fn load_global() -> Self {
-        let path = PathBuf::from(GLOBAL_SETTINGS_PATH.clone());
+        let path = FILESYSTEM.config_path();
 
         if !path.exists() {
-            std::fs::create_dir_all(path.parent().unwrap()).unwrap();
-            let content = serde_json::to_string_pretty(&Self::default()).unwrap();
-            std::fs::write(&path, content).unwrap();
-
-            // return a default config
-            return Self::default();
+            FILESYSTEM.mkdir(path.parent().unwrap()).unwrap();
+            FILESYSTEM.write(path.as_path(), Self::default()).unwrap();
         }
 
-        let content = std::fs::read_to_string(path).unwrap();
-        serde_json::from_str(&content).unwrap()
+        let mut settings = FILESYSTEM.read::<Self>(path.as_path()).unwrap();
+        settings.is_global = true;
+        settings
     }
 }

src/editors/template_editor.rs

@@ -2,10 +2,12 @@ use chrono::NaiveDate;
 use core::fmt;
 use egui::ScrollArea;
 use serde::{Deserialize, Serialize};
+use std::path::Path;
 
 use crate::{
-    PROJECT_FOLDER, RightPanelContent,
+    RightPanelContent,
     editors::object_editor::ObjectInstance,
+    filesystem::{FILESYSTEM, LegacyFileSystem},
     util::{self, Error},
 };
 
@@ -171,21 +173,14 @@ impl Default for Template {
 
 impl Template {
     pub fn load(id: &str) -> Result<Self, Box<dyn std::error::Error>> {
-        let path = PROJECT_FOLDER.join("templates").join(format!("{id}.json"));
-
-        let content = std::fs::read_to_string(&path)?;
-        let mut template: Self = serde_json::from_str(&content)?;
+        let mut template = FILESYSTEM.read::<Self>(Path::new(&format!("templates/{id}.json")))?;
         template.saved = true;
         Ok(template)
     }
 
     pub fn save(&mut self) -> Result<(), Box<dyn std::error::Error>> {
-        let path = PROJECT_FOLDER
-            .join("templates")
-            .join(format!("{}.json", &self.id));
-
-        let content = serde_json::to_string_pretty(self)?;
-        std::fs::write(path, content)?;
+        let id = &self.id;
+        FILESYSTEM.write(Path::new(&format!("templates/{id}.json")), self.clone())?;
         self.saved = true;
         Ok(())
     }
@@ -203,16 +198,6 @@ impl Template {
 
         ScrollArea::vertical().show(ui, |ui| {
             ui.vertical(|ui| {
-                // ui.group(|ui| {
-                //     ui.horizontal(|ui| {
-                //         if self.saved {
-                //             ui.label(RichText::new("✓ Saved").color(egui::Color32::GREEN));
-                //         } else {
-                //             ui.label(RichText::new("* Unsaved").color(egui::Color32::YELLOW));
-                //         }
-                //         ui.label(format!("id: {}", self.id));
-                //     });
-                // });
                 util::saved_status(ui, self.saved, &self.id, &self.name);
 
                 // Save/Cancel buttons
@@ -231,13 +216,10 @@ impl Template {
                     }
 
                     if ui.button("Delete").clicked() {
-                        std::fs::remove_file(
-                            PROJECT_FOLDER
-                                .join("templates")
-                                .join(format!("{}.json", self.id)),
-                        )
-                        .unwrap();
-
+                        let id = &self.id;
+                        FILESYSTEM
+                            .delete(Path::new(&format!("templates/{id}.json")))
+                            .unwrap();
                         *new_instance = Some(RightPanelContent::None);
                     }
 

src/filesystem/mod.rs

@@ -0,0 +1,103 @@
+use std::{
+    collections::HashMap,
+    io,
+    path::{Path, PathBuf},
+    sync::LazyLock,
+};
+
+use serde::{Serialize, de::DeserializeOwned};
+
+#[cfg(feature = "native")]
+use crate::PROJECT_FOLDER;
+use crate::filesystem::native::NativeFileSystem;
+
+#[cfg(feature = "native")]
+pub mod native;
+
+#[cfg(feature = "web")]
+pub mod web;
+
+pub static FILESYSTEM: LazyLock<NativeFileSystem> = LazyLock::new(|| {
+    #[cfg(feature = "native")]
+    return NativeFileSystem::new(PROJECT_FOLDER.clone());
+    #[cfg(feature = "web")]
+    return Box::new(web::WebFileSystem::new());
+});
+
+pub trait LegacyFileSystem {
+    fn read<T: DeserializeOwned>(&self, path: &Path) -> Result<T, FsError>;
+    fn read_bytes(&self, path: &Path) -> Result<Vec<u8>, FsError>;
+    fn write<T: Serialize>(&self, path: &Path, data: T) -> Result<(), FsError>;
+    fn delete(&self, path: &Path) -> Result<(), FsError>;
+    fn mkdir(&self, path: &Path) -> Result<(), FsError>;
+    fn rename(&self, path: &Path, new_path: &Path) -> Result<(), FsError>;
+
+    #[allow(unused)]
+    fn exists(&self, path: &Path) -> bool;
+
+    fn config_path(&self) -> PathBuf;
+}
+
+// ────────────────────────────────────────────────────────────────
+// Custom error type
+// ────────────────────────────────────────────────────────────────
+#[derive(Debug)]
+pub enum FsError {
+    Io(io::Error),
+    Serde(serde_json::Error),
+}
+
+impl std::fmt::Display for FsError {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        match self {
+            FsError::Io(e) => write!(f, "IO error: {e}"),
+            FsError::Serde(e) => write!(f, "Serialization error: {e}"),
+        }
+    }
+}
+
+impl std::error::Error for FsError {
+    fn source(&self) -> Option<&(dyn std::error::Error + 'static)> {
+        match self {
+            FsError::Io(e) => Some(e),
+            FsError::Serde(e) => Some(e),
+        }
+    }
+}
+
+// Convert the two underlying error types into our own
+impl From<io::Error> for FsError {
+    fn from(err: io::Error) -> Self {
+        FsError::Io(err)
+    }
+}
+impl From<serde_json::Error> for FsError {
+    fn from(err: serde_json::Error) -> Self {
+        FsError::Serde(err)
+    }
+}
+
+#[allow(dead_code)]
+pub struct Id(String);
+
+#[allow(dead_code)]
+pub trait FileSystem {
+    fn load<T: DeserializeOwned>(&self, id: Id) -> Result<T, FsError>;
+    fn save<T: Serialize>(&self, id: Id, data: T) -> Result<(), FsError>;
+    fn mkdir(&self, path: Path) -> Result<(), FsError>;
+    fn exists(&self, path: Path) -> bool;
+}
+
+#[allow(dead_code)]
+pub struct Index {
+    file_cache: HashMap<Id, PathBuf>,
+    project_root: Directory,
+}
+
+#[allow(dead_code)]
+pub struct Directory {
+    name: String,
+    id: Id,
+    children: HashMap<Id, Directory>,
+    files: Vec<Id>,
+}

src/filesystem/native.rs

@@ -0,0 +1,105 @@
+// ────────────────────────────────────────────────────────────────
+// Imports
+// ────────────────────────────────────────────────────────────────
+use std::fs;
+use std::io::{ErrorKind, Read};
+use std::path::{Path, PathBuf};
+
+use serde::Serialize;
+use serde::de::DeserializeOwned;
+
+use crate::filesystem::{FsError, LegacyFileSystem};
+
+// ────────────────────────────────────────────────────────────────
+// Concrete implementation
+// ────────────────────────────────────────────────────────────────
+/// The concrete file‑system.  All paths are interpreted relative to
+/// `project_root`.
+pub struct NativeFileSystem {
+    project_root: PathBuf,
+}
+
+impl NativeFileSystem {
+    /// Create a new instance.
+    pub fn new(root: impl Into<PathBuf>) -> Self {
+        Self {
+            project_root: root.into(),
+        }
+    }
+
+    /// Resolve the user supplied *relative* path against the project root.
+    #[inline]
+    fn full_path(&self, path: &Path) -> PathBuf {
+        self.project_root.join(path)
+    }
+}
+
+// ────────────────────────────────────────────────────────────────
+// Implementation of the trait
+// ────────────────────────────────────────────────────────────────
+impl LegacyFileSystem for NativeFileSystem {
+    fn read<T: DeserializeOwned>(&self, path: &Path) -> Result<T, FsError> {
+        let full_path = self.full_path(path);
+        let file = fs::File::open(full_path).map_err(FsError::Io)?;
+        serde_json::from_reader(file).map_err(FsError::Serde)
+    }
+
+    fn read_bytes(&self, path: &Path) -> Result<Vec<u8>, FsError> {
+        let full_path = self.full_path(path);
+        let mut contents = Vec::new();
+        fs::File::open(full_path)?.read_to_end(&mut contents)?;
+        Ok(contents)
+    }
+
+    fn write<T: Serialize>(&self, path: &Path, data: T) -> Result<(), FsError> {
+        let full_path = self.full_path(path);
+
+        // Ensure the parent directory exists.
+        if let Some(parent) = full_path.parent() {
+            fs::create_dir_all(parent)?;
+        }
+
+        let file = fs::File::create(full_path)?;
+        serde_json::to_writer(file, &data).map_err(FsError::Serde)
+    }
+
+    fn delete(&self, path: &Path) -> Result<(), FsError> {
+        let full_path = self.full_path(path);
+        match fs::remove_file(&full_path) {
+            Ok(()) => Ok(()),
+            Err(e) if e.kind() == ErrorKind::IsADirectory => {
+                // Remove a directory tree.
+                fs::remove_dir_all(full_path).map_err(FsError::Io)
+            }
+            Err(e) => Err(FsError::Io(e)),
+        }
+    }
+
+    fn mkdir(&self, path: &Path) -> Result<(), FsError> {
+        let full_path = self.full_path(path);
+        fs::create_dir_all(full_path).map_err(FsError::Io)
+    }
+
+    fn exists(&self, path: &Path) -> bool {
+        let full_path = self.full_path(path);
+        full_path.exists()
+    }
+
+    fn rename(&self, path: &Path, other: &Path) -> Result<(), FsError> {
+        let full_path = self.full_path(path);
+        let full_other = self.full_path(other);
+        fs::rename(full_path, full_other).map_err(FsError::Io)
+    }
+
+    fn config_path(&self) -> PathBuf {
+        match std::env::var("HOME") {
+            Ok(path) => PathBuf::from(path + "/.config/worldcoder/settings.json"),
+            Err(_) => {
+                eprintln!(
+                    "XDG_CONFIG_HOME not set, using default path of ~/.config/worldcoder/settings.json"
+                );
+                "~/.config/worldcoder/settings.json".into()
+            }
+        }
+    }
+}

src/index.rs

@@ -1,125 +0,0 @@
-use std::io::{self, Read, Write};
-use std::path::{Path, PathBuf};
-
-/// Platform-agnostic file system operations
-trait FileSystem {
-    fn read_file(&self, path: &Path) -> io::Result<Vec<u8>>;
-    fn write_file(&self, path: &Path, contents: &[u8]) -> io::Result<()>;
-    fn create_dir_all(&self, path: &Path) -> io::Result<()>;
-    fn read_dir(&self, path: &Path) -> io::Result<Vec<PathBuf>>;
-    fn exists(&self, path: &Path) -> bool;
-}
-
-/// Native filesystem implementation
-#[cfg(feature = "native")]
-struct NativeFileSystem;
-
-#[cfg(feature = "native")]
-impl FileSystem for NativeFileSystem {
-    fn read_file(&self, path: &Path) -> io::Result<Vec<u8>> {
-        std::fs::read(path)
-    }
-
-    fn write_file(&self, path: &Path, contents: &[u8]) -> io::Result<()> {
-        if let Some(parent) = path.parent() {
-            std::fs::create_dir_all(parent)?;
-        }
-        std::fs::write(path, contents)
-    }
-
-    fn create_dir_all(&self, path: &Path) -> io::Result<()> {
-        std::fs::create_dir_all(path)
-    }
-
-    fn read_dir(&self, path: &Path) -> io::Result<Vec<PathBuf>> {
-        Ok(std::fs::read_dir(path)?
-            .filter_map(Result::ok)
-            .map(|entry| entry.path())
-            .collect())
-    }
-
-    fn exists(&self, path: &Path) -> bool {
-        path.exists()
-    }
-}
-
-/// Web filesystem implementation
-#[cfg(feature = "web")]
-struct WebFileSystem;
-
-#[cfg(feature = "web")]
-impl WebFileSystem {
-    fn new() -> Self {
-        // Initialize web-specific storage if needed
-        Self
-    }
-}
-
-#[cfg(feature = "web")]
-impl FileSystem for WebFileSystem {
-    fn read_file(&self, path: &Path) -> io::Result<Vec<u8>> {
-        // In a real implementation, this would use web_sys and IndexedDB
-        // This is a simplified version that won't actually work
-        Err(io::Error::new(
-            io::ErrorKind::Other,
-            "Web filesystem not implemented",
-        ))
-    }
-
-    fn write_file(&self, path: &Path, contents: &[u8]) -> io::Result<()> {
-        // In a real implementation, this would use web_sys and IndexedDB
-        // This is a simplified version that won't actually work
-        Err(io::Error::new(
-            io::ErrorKind::Other,
-            "Web filesystem not implemented",
-        ))
-    }
-
-    fn create_dir_all(&self, _path: &Path) -> io::Result<()> {
-        // In web, directories are virtual and created automatically
-        Ok(())
-    }
-
-    fn read_dir(&self, _path: &Path) -> io::Result<Vec<PathBuf>> {
-        // In a real implementation, this would list files from IndexedDB
-        // This is a simplified version that returns an empty list
-        Ok(Vec::new())
-    }
-
-    fn exists(&self, _path: &Path) -> bool {
-        // In a real implementation, this would check IndexedDB
-        false
-    }
-}
-
-#[cfg(feature = "web")]
-#[cfg(test)]
-mod tests {
-    use super::*;
-    use std::fs::File;
-    use tempfile::tempdir;
-
-    #[test]
-    fn test_native_fs() {
-        let temp_dir = tempdir().unwrap();
-        let file_path = temp_dir.path().join("test.txt");
-
-        let fs = NativeFileSystem;
-
-        // Test write and read
-        let test_data = b"Hello, world!";
-        fs.write_file(&file_path, test_data).unwrap();
-        let read_data = fs.read_file(&file_path).unwrap();
-        assert_eq!(read_data, test_data);
-
-        // Test exists
-        assert!(fs.exists(&file_path));
-        assert!(!fs.exists(&temp_dir.path().join("nonexistent")));
-
-        // Test create_dir_all and read_dir
-        let dir_path = temp_dir.path().join("subdir");
-        fs.create_dir_all(&dir_path).unwrap();
-        let entries = fs.read_dir(temp_dir.path()).unwrap();
-        assert_eq!(entries.len(), 2); // Should contain both the file and the subdirectory
-    }
-}

src/llm_integration/content_llm.rs

@@ -440,6 +440,7 @@ pub struct AIInput {
     pub system_prompt: String,
     pub user_prompt: String,
     pub previous_content: String,
+    #[allow(unused)]
     pub structure: Option<String>,
 }
 

src/main.rs

@@ -10,9 +10,10 @@ mod explorer;
 #[cfg(feature = "llm")]
 mod llm_integration;
 
-mod index;
 mod util;
 
+mod filesystem;
+
 use crate::{
     editors::{
         asset_editor::Asset, content_editor, note_editor, object_editor::ObjectInstance,

~/.config/worldcoder/settings.json

@@ -1,6 +0,0 @@
-{
-  "llm_api_uri": "http://localhost:1234",
-  "llm_api_key": "",
-  "ai_enabled": true,
-  "dark_theme": true
-}