feat: enhance codebase

Author: LeadcodeDev

src/commands/info.rs

@@ -0,0 +1,51 @@
+use crate::error::Result;
+use crate::load_scenario;
+use crate::schema;
+use std::path::PathBuf;
+
+pub fn cmd_info(input: &PathBuf) -> Result<()> {
+    let scenario = load_scenario(input)?;
+    let fps = scenario.video.fps;
+    let all_scenes: Vec<_> = scenario.all_scenes().collect();
+    let total_duration: f64 = all_scenes.iter().map(|s| s.duration).sum();
+    let total_frames: u32 = all_scenes
+        .iter()
+        .map(|s| (s.duration * fps as f64).round() as u32)
+        .sum();
+
+    let total_layers: usize = all_scenes.iter().map(|s| s.children.len()).sum();
+
+    println!("File: {}", input.display());
+    println!("Resolution: {}x{}", scenario.video.width, scenario.video.height);
+    println!("FPS: {}", fps);
+    println!("Duration: {:.1}s ({} frames)", total_duration, total_frames);
+    println!("Views: {}", scenario.views.len());
+    println!("Scenes: {}", all_scenes.len());
+    println!("Total layers: {}", total_layers);
+    println!("Audio tracks: {}", scenario.audio.len());
+
+    for (vi, view) in scenario.views.iter().enumerate() {
+        let vtype = match view.view_type {
+            schema::ViewType::Slide => "Slide",
+            schema::ViewType::World => "World",
+        };
+        println!("  View {}: {} ({} scenes)", vi + 1, vtype, view.scenes.len());
+        for (si, scene) in view.scenes.iter().enumerate() {
+            let scene_frames = (scene.duration * fps as f64).round() as u32;
+            println!(
+                "    Scene {}: {:.1}s ({} frames, {} layers{})",
+                si + 1,
+                scene.duration,
+                scene_frames,
+                scene.children.len(),
+                scene
+                    .transition
+                    .as_ref()
+                    .map(|t| format!(", transition: {:?} {:.1}s", t.transition_type, t.duration))
+                    .unwrap_or_default()
+            );
+        }
+    }
+
+    Ok(())
+}

src/commands/mod.rs

@@ -0,0 +1,11 @@
+mod info;
+mod render;
+mod schema;
+mod still;
+mod validate;
+
+pub use info::cmd_info;
+pub use render::{cmd_render, cmd_watch};
+pub use schema::cmd_schema;
+pub use still::cmd_still;
+pub use validate::cmd_validate;