reordering slightly, setting up for pkgbuild

zshell-img-tools/src/config.rs

@@ -0,0 +1,45 @@
+use anyhow::{Context, Result};
+use serde::{Deserialize, Serialize};
+use std::path::PathBuf;
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct Config {
+    #[serde(rename = "screenshot")]
+    pub screenshot: EffectsConfig,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct EffectsConfig {
+    pub mode: String,
+    pub rounded_corners: bool,
+    pub corner_radius: f32,
+    pub drop_shadow: bool,
+    pub shadow_blur_radius: f32,
+    pub shadow_offset_x: f32,
+    pub shadow_offset_y: f32,
+    pub shadow_color: [u8; 4],
+}
+
+impl Config {
+    pub fn config_path() -> Option<PathBuf> {
+        let home = std::env::var("HOME").ok()?;
+        Some(
+            PathBuf::from(home)
+                .join(".config")
+                .join("zshell")
+                .join("config.json"),
+        )
+    }
+
+    pub fn load() -> Result<Self> {
+        let path = Self::config_path().context("Could not determine HOME directory")?;
+        Self::load_from(&path)
+    }
+
+    pub fn load_from(path: &PathBuf) -> Result<Self> {
+        let raw = std::fs::read_to_string(path)
+            .with_context(|| format!("Failed to read config at {}", path.display()))?;
+        serde_json::from_str(&raw)
+            .with_context(|| format!("Failed to parse JSON config at {}", path.display()))
+    }
+}