78 lines
2.2 KiB
Rust
78 lines
2.2 KiB
Rust
/*
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* Persistence logic for dungeon state.
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* Handles saving and loading the complete dungeon state
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* (settings and layout data) to and from disk using JSON.
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*/
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use rfd::FileDialog;
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use serde::{Deserialize, Serialize};
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use std::fs;
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use std::path::PathBuf;
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use crate::layout::DungeonLayout;
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use crate::ui::UiSettings;
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#[derive(Serialize, Deserialize)]
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pub struct DungeonSave {
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pub settings: UiSettings,
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pub layouts: Vec<DungeonLayout>,
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pub svgs: Vec<String>,
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}
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// Saves dungeon state to a user-selected JSON file.
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pub fn save_dungeon(
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settings: &UiSettings,
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layouts: Vec<DungeonLayout>,
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svgs: Vec<String>,
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) -> Result<PathBuf, String> {
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let dialog = FileDialog::new()
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.set_title("Save Dungeon State")
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.add_filter("Dungeon File", &["dungeon"])
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.set_file_name("my_dungeon.dungeon");
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#[cfg(target_os = "windows")]
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let path = std::thread::spawn(move || dialog.save_file())
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.join()
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.map_err(|_| "Dialog thread panicked".to_string())?;
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#[cfg(not(target_os = "windows"))]
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let path = dialog.save_file();
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let path = path.ok_or_else(|| "Save canceled".to_string())?;
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let save_data = DungeonSave {
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settings: settings.clone(),
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layouts,
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svgs,
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};
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let json = serde_json::to_string_pretty(&save_data)
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.map_err(|e| format!("Failed to serialize dungeon: {e}"))?;
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fs::write(&path, json).map_err(|e| format!("Failed to write file: {e}"))?;
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Ok(path)
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}
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// Loads dungeon state from a user-selected JSON file.
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pub fn load_dungeon() -> Result<DungeonSave, String> {
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let dialog = FileDialog::new()
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.set_title("Load Dungeon State")
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.add_filter("Dungeon File", &["dungeon"]);
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#[cfg(target_os = "windows")]
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let path = std::thread::spawn(move || dialog.pick_file())
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.join()
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.map_err(|_| "Dialog thread panicked".to_string())?;
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#[cfg(not(target_os = "windows"))]
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let path = dialog.pick_file();
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let path = path.ok_or_else(|| "Load canceled".to_string())?;
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let content = fs::read_to_string(path).map_err(|e| format!("Failed to read file: {e}"))?;
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let save_data: DungeonSave =
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serde_json::from_str(&content).map_err(|e| format!("Failed to parse dungeon file: {e}"))?;
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Ok(save_data)
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}
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