feat: initialize Tauri 2.x project structure

src-tauri/src/commands/app.rs

@@ -0,0 +1,34 @@
+use std::fs;
+use tauri::CommandResult;
+use crate::error::AppError;
+
+#[tauri::command]
+pub fn get_app_version() -> String {
+    env!("CARGO_PKG_VERSION").to_string()
+}
+
+#[tauri::command]
+pub fn get_recent_files() -> CommandResult<Vec<String>, AppError> {
+    let config_dir = dirs::config_dir()
+        .ok_or_else(|| AppError::Config("Cannot find config directory".to_string()))?;
+    let recent_path = config_dir.join("markdown-converter").join("recent-files.json");
+    if recent_path.exists() {
+        let content = fs::read_to_string(&recent_path).map_err(|e| AppError::FileRead(e.to_string()))?;
+        let files: Vec<String> = serde_json::from_str(&content).unwrap_or_default();
+        Ok(files)
+    } else {
+        Ok(Vec::new())
+    }
+}
+
+#[tauri::command]
+pub fn save_recent_files(files: Vec<String>) -> CommandResult<(), AppError> {
+    let config_dir = dirs::config_dir()
+        .ok_or_else(|| AppError::Config("Cannot find config directory".to_string()))?;
+    let app_dir = config_dir.join("markdown-converter");
+    fs::create_dir_all(&app_dir).map_err(|e| AppError::FileWrite(e.to_string()))?;
+    let recent_path = app_dir.join("recent-files.json");
+    let content = serde_json::to_string_pretty(&files).map_err(|e| AppError::Config(e.to_string()))?;
+    fs::write(&recent_path, content).map_err(|e| AppError::FileWrite(e.to_string()))?;
+    Ok(())
+}

src-tauri/src/commands/dialog.rs

@@ -0,0 +1,28 @@
+use tauri_plugin_dialog::DialogExt;
+use tauri::CommandResult;
+use crate::error::AppError;
+
+#[tauri::command]
+pub async fn open_file_dialog(app: tauri::AppHandle) -> CommandResult<Option<String>, AppError> {
+    let file = app.dialog()
+        .file()
+        .add_filter("Markdown", &["md", "markdown"])
+        .add_filter("All Files", &["*"]);
+    let result = file.blocking_pick_file();
+    Ok(result.map(|p| p.to_string()))
+}
+
+#[tauri::command]
+pub async fn save_file_dialog(app: tauri::AppHandle, default_name: Option<String>) -> CommandResult<Option<String>, AppError> {
+    let file = app.dialog()
+        .file()
+        .set_file_name(default_name.unwrap_or_else(|| "untitled.md".to_string()));
+    let result = file.blocking_save_file();
+    Ok(result.map(|p| p.to_string()))
+}
+
+#[tauri::command]
+pub async fn select_folder_dialog(app: tauri::AppHandle) -> CommandResult<Option<String>, AppError> {
+    let folder = app.dialog().file().blocking_pick_folder();
+    Ok(folder.map(|p| p.to_string()))
+}

src-tauri/src/commands/export.rs

@@ -0,0 +1,63 @@
+use std::process::Command;
+use tauri::CommandResult;
+use crate::error::AppError;
+
+#[tauri::command]
+pub async fn export_markdown(
+    input_path: String,
+    output_path: String,
+    format: String,
+    options: ExportOptions,
+) -> CommandResult<String, AppError> {
+    let mut args = vec![input_path.clone(), "-o".to_string(), output_path.clone()];
+
+    match format.as_str() {
+        "pdf" => {
+            args.push("--pdf-engine=xelatex".to_string());
+            if options.standalone.unwrap_or(false) {
+                args.push("-s".to_string());
+            }
+        },
+        "docx" => {
+            args.push("--to=docx".to_string());
+            if options.standalone.unwrap_or(false) {
+                args.push("-s".to_string());
+            }
+        },
+        "html" => {
+            args.push("--to=html".to_string());
+            if options.standalone.unwrap_or(false) {
+                args.push("-s".to_string());
+            }
+        },
+        _ => {
+            args.push(format!("--to={}", format));
+        }
+    }
+
+    let output = Command::new("pandoc")
+        .args(&args)
+        .output()
+        .map_err(|e| AppError::Export(e.to_string()))?;
+
+    if !output.status.success() {
+        let stderr = String::from_utf8_lossy(&output.stderr);
+        return Err(AppError::Export(stderr.to_string()));
+    }
+
+    Ok(output_path)
+}
+
+#[derive(serde::Deserialize)]
+pub struct ExportOptions {
+    pub standalone: Option<bool>,
+    pub template: Option<String>,
+}
+
+#[tauri::command]
+pub async fn check_pandoc_available() -> CommandResult<bool, AppError> {
+    let output = Command::new("pandoc")
+        .arg("--version")
+        .output();
+    Ok(output.is_ok())
+}

src-tauri/src/commands/file.rs

@@ -0,0 +1,72 @@
+use std::fs;
+use std::path::Path;
+use tauri::CommandResult;
+use crate::error::AppError;
+
+#[tauri::command]
+pub async fn read_file(path: String) -> CommandResult<String, AppError> {
+    fs::read_to_string(&path).map_err(|e| AppError::FileRead(e.to_string()))
+}
+
+#[tauri::command]
+pub async fn write_file(path: String, content: String) -> CommandResult<(), AppError> {
+    if let Some(parent) = Path::new(&path).parent() {
+        fs::create_dir_all(parent).map_err(|e| AppError::FileWrite(e.to_string()))?;
+    }
+    fs::write(&path, content).map_err(|e| AppError::FileWrite(e.to_string()))
+}
+
+#[tauri::command]
+pub async fn delete_file(path: String) -> CommandResult<(), AppError> {
+    fs::remove_file(&path).map_err(|e| AppError::FileDelete(e.to_string()))
+}
+
+#[tauri::command]
+pub async fn path_exists(path: String) -> bool {
+    Path::new(&path).exists()
+}
+
+#[tauri::command]
+pub async fn is_directory(path: String) -> bool {
+    Path::new(&path).is_dir()
+}
+
+#[tauri::command]
+pub async fn list_directory(path: String) -> CommandResult<Vec<FileEntry>, AppError> {
+    let mut entries = Vec::new();
+    for entry in walkdir::WalkDir::new(&path).max_depth(1).into_iter().filter_map(|e| e.ok()) {
+        let p = entry.path();
+        if p == Path::new(&path) { continue; }
+        entries.push(FileEntry {
+            name: p.file_name().unwrap_or_default().to_string_lossy().to_string(),
+            path: p.to_string_lossy().to_string(),
+            is_dir: p.is_dir(),
+            is_file: p.is_file(),
+        });
+    }
+    Ok(entries)
+}
+
+#[tauri::command]
+pub async fn ensure_directory(path: String) -> CommandResult<(), AppError> {
+    fs::create_dir_all(&path).map_err(|e| AppError::FileWrite(e.to_string()))
+}
+
+#[tauri::command]
+pub async fn copy_path(source: String, destination: String) -> CommandResult<(), AppError> {
+    fs::copy(&source, &destination).map_err(|e| AppError::FileCopy(e.to_string()))?;
+    Ok(())
+}
+
+#[tauri::command]
+pub async fn move_path(source: String, destination: String) -> CommandResult<(), AppError> {
+    fs::rename(&source, &destination).map_err(|e| AppError::FileMove(e.to_string()))
+}
+
+#[derive(serde::Serialize)]
+pub struct FileEntry {
+    pub name: String,
+    pub path: String,
+    pub is_dir: bool,
+    pub is_file: bool,
+}

src-tauri/src/commands/git.rs

@@ -0,0 +1,113 @@
+use git2::{Repository, Status, DiffOptions};
+use tauri::CommandResult;
+use crate::error::AppError;
+
+#[tauri::command]
+pub async fn git_status(repo_path: String) -> CommandResult<Vec<GitStatusEntry>, AppError> {
+    let repo = Repository::open(&repo_path).map_err(|e| AppError::Git(e.to_string()))?;
+    let mut statuses = Vec::new();
+
+    repo.statuses(None).map_err(|e| AppError::Git(e.to_string()))?.foreach(|entry| {
+        if let Some(status) = entry.status() {
+            let path = entry.path().unwrap_or("").to_string();
+            statuses.push(GitStatusEntry {
+                path,
+                is_staged: status.intersects(Status::INDEX_NEW | Status::INDEX_MODIFIED | Status::INDEX_DELETED),
+                is_modified: status.intersects(Status::WT_MODIFIED),
+                is_new: status.intersects(Status::WT_NEW),
+                is_deleted: status.intersects(Status::WT_DELETED),
+            });
+        }
+        true
+    }).map_err(|e| AppError::Git(e.to_string()))?;
+
+    Ok(statuses)
+}
+
+#[derive(serde::Serialize)]
+pub struct GitStatusEntry {
+    pub path: String,
+    pub is_staged: bool,
+    pub is_modified: bool,
+    pub is_new: bool,
+    pub is_deleted: bool,
+}
+
+#[tauri::command]
+pub async fn git_stage(repo_path: String, path: String) -> CommandResult<(), AppError> {
+    let repo = Repository::open(&repo_path).map_err(|e| AppError::Git(e.to_string()))?;
+    let mut index = repo.index().map_err(|e| AppError::Git(e.to_string()))?;
+    index.add_path(std::path::Path::new(&path)).map_err(|e| AppError::Git(e.to_string()))?;
+    index.write().map_err(|e| AppError::Git(e.to_string()))?;
+    Ok(())
+}
+
+#[tauri::command]
+pub async fn git_commit(repo_path: String, message: String) -> CommandResult<String, AppError> {
+    let repo = Repository::open(&repo_path).map_err(|e| AppError::Git(e.to_string()))?;
+    let mut index = repo.index().map_err(|e| AppError::Git(e.to_string()))?;
+    let oid = index.write_tree().map_err(|e| AppError::Git(e.to_string()))?;
+    let tree = repo.find_tree(oid).map_err(|e| AppError::Git(e.to_string()))?;
+    let signature = repo.signature().map_err(|e| AppError::Git(e.to_string()))?;
+    let parent = repo.head().ok().and_then(|h| h.peel_to_commit().ok());
+    let commit = repo.commit(
+        Some("HEAD"), &signature, &signature, &message, &tree,
+        parent.as_ref(),
+    ).map_err(|e| AppError::Git(e.to_string()))?;
+    Ok(commit.to_string())
+}
+
+#[tauri::command]
+pub async fn git_log(repo_path: String, limit: Option<usize>) -> CommandResult<Vec<GitCommitEntry>, AppError> {
+    let repo = Repository::open(&repo_path).map_err(|e| AppError::Git(e.to_string()))?;
+    let mut revwalk = repo.revwalk().map_err(|e| AppError::Git(e.to_string()))?;
+    revwalk.push_head().map_err(|e| AppError::Git(e.to_string()))?;
+    let max = limit.unwrap_or(50);
+    let mut commits = Vec::new();
+    for (i, oid) in revwalk.enumerate() {
+        if i >= max { break; }
+        let commit = repo.find_commit(oid).map_err(|e| AppError::Git(e.to_string()))?;
+        commits.push(GitCommitEntry {
+            hash: commit.id().to_string(),
+            message: commit.message().unwrap_or("").to_string(),
+            author: commit.author().name().unwrap_or("").to_string(),
+            date: chrono::DateTime::from_timestamp(commit.time().seconds(), 0)
+                .map(|dt| dt.format("%Y-%m-%d %H:%M:%S").to_string())
+                .unwrap_or_default(),
+        });
+    }
+    Ok(commits)
+}
+
+#[derive(serde::Serialize)]
+pub struct GitCommitEntry {
+    pub hash: String,
+    pub message: String,
+    pub author: String,
+    pub date: String,
+}
+
+#[tauri::command]
+pub async fn git_diff(repo_path: String, path: Option<String>) -> CommandResult<String, AppError> {
+    let repo = Repository::open(&repo_path).map_err(|e| AppError::Git(e.to_string()))?;
+    let mut opts = DiffOptions::new();
+    if let Some(p) = path {
+        opts.path_filter(&p);
+    }
+    let diff = repo.diff_index_to_workdir(None, Some(&mut opts))
+        .map_err(|e| AppError::Git(e.to_string()))?;
+    let mut out = Vec::new();
+    diff.print(git2::DiffFormat::Patch, |_delta, _origin, line| {
+        let prefix = match line.origin() {
+            '+' => " +",
+            '-' => " -",
+            ' ' => "  ",
+            _ => "",
+        };
+        if let Ok(content) = std::str::from_utf8(line.content()) {
+            out.push(format!("{}{}", prefix, content));
+        }
+        true
+    }).map_err(|e| AppError::Git(e.to_string()))?;
+    Ok(out.join(""))
+}

src-tauri/src/commands/mod.rs

@@ -0,0 +1,6 @@
+pub mod file;
+pub mod export;
+pub mod git;
+pub mod app;
+pub mod pdf;
+pub mod dialog;

src-tauri/src/commands/pdf.rs

@@ -0,0 +1,28 @@
+use tauri::CommandResult;
+use crate::error::AppError;
+
+#[tauri::command]
+pub async fn get_pdf_page_count(path: String) -> CommandResult<usize, AppError> {
+    // Placeholder — actual implementation in pdf_ops.rs
+    Ok(0)
+}
+
+#[tauri::command]
+pub async fn merge_pdfs(paths: Vec<String>, output: String) -> CommandResult<String, AppError> {
+    Ok(output)
+}
+
+#[tauri::command]
+pub async fn split_pdf(input: String, output_dir: String, pages_per_split: usize) -> CommandResult<Vec<String>, AppError> {
+    Ok(Vec::new())
+}
+
+#[tauri::command]
+pub async fn rotate_pdf(input: String, output: String, degrees: i32) -> CommandResult<(), AppError> {
+    Ok(())
+}
+
+#[tauri::command]
+pub async fn delete_pdf_pages(input: String, output: String, pages: Vec<usize>) -> CommandResult<(), AppError> {
+    Ok(())
+}

src-tauri/src/error.rs

@@ -0,0 +1,32 @@
+use thiserror::Error;
+
+#[derive(Error, Debug)]
+pub enum AppError {
+    #[error("File read error: {0}")]
+    FileRead(String),
+    #[error("File write error: {0}")]
+    FileWrite(String),
+    #[error("File delete error: {0}")]
+    FileDelete(String),
+    #[error("File copy error: {0}")]
+    FileCopy(String),
+    #[error("File move error: {0}")]
+    FileMove(String),
+    #[error("Export error: {0}")]
+    Export(String),
+    #[error("Git error: {0}")]
+    Git(String),
+    #[error("PDF error: {0}")]
+    Pdf(String),
+    #[error("Config error: {0}")]
+    Config(String),
+}
+
+impl serde::Serialize for AppError {
+    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
+    where
+        S: serde::ser::Serializer,
+    {
+        serializer.serialize_str(self.to_string().as_ref())
+    }
+}

src-tauri/src/lib.rs

@@ -0,0 +1,53 @@
+pub fn run() {
+    tauri::Builder::default()
+        .plugin(tauri_plugin_log::Builder::new().build())
+        .plugin(tauri_plugin_store::Builder::new().build())
+        .plugin(tauri_plugin_shell::init())
+        .plugin(tauri_plugin_dialog::init())
+        .plugin(tauri_plugin_fs::init())
+        .plugin(tauri_plugin_process::init())
+        .plugin(tauri_plugin_clipboard_manager::init())
+        .plugin(tauri_plugin_notification::init())
+        .plugin(tauri_plugin_os::init())
+        .plugin(tauri_plugin_opener::init())
+        .invoke_handler(tauri::generate_handler![
+            crate::commands::file::read_file,
+            crate::commands::file::write_file,
+            crate::commands::file::delete_file,
+            crate::commands::file::path_exists,
+            crate::commands::file::is_directory,
+            crate::commands::file::list_directory,
+            crate::commands::file::ensure_directory,
+            crate::commands::file::copy_path,
+            crate::commands::file::move_path,
+            crate::commands::export::export_markdown,
+            crate::commands::export::check_pandoc_available,
+            crate::commands::git::git_status,
+            crate::commands::git::git_stage,
+            crate::commands::git::git_commit,
+            crate::commands::git::git_log,
+            crate::commands::git::git_diff,
+            crate::commands::app::get_app_version,
+            crate::commands::app::get_recent_files,
+            crate::commands::app::save_recent_files,
+            crate::commands::pdf::get_pdf_page_count,
+            crate::commands::pdf::merge_pdfs,
+            crate::commands::pdf::split_pdf,
+            crate::commands::pdf::rotate_pdf,
+            crate::commands::pdf::delete_pdf_pages,
+            crate::commands::dialog::open_file_dialog,
+            crate::commands::dialog::save_file_dialog,
+            crate::commands::dialog::select_folder_dialog,
+        ])
+        .setup(|app| {
+            log::info!("MarkdownConverter starting up");
+            Ok(())
+        })
+        .on_window_event(|window, event| {
+            if let tauri::WindowEvent::CloseRequested { .. } = event {
+                let _ = window.emit("file-save", ());
+            }
+        })
+        .run(tauri::generate_context!())
+        .expect("error while running tauri application");
+}

src-tauri/src/main.rs

@@ -0,0 +1,5 @@
+#![cfg_attr(not(debug_assertions), windows_subsystem = "windows")]
+
+fn main() {
+    markdown_converter_lib::run()
+}