Files
gui-video-clipper/src-tauri/src/services/video_resolver.rs

110 lines
3.2 KiB
Rust

use crate::models::{CookieSource, VideoMetadata};
use serde::Deserialize;
use std::process::Command;
#[derive(Debug, Deserialize)]
pub struct YtDlpJson {
pub title: String,
pub duration: Option<f64>,
pub fps: Option<f64>,
pub thumbnail: Option<String>,
}
pub fn parse_ytdlp_json(json_str: &str) -> Result<YtDlpJson, String> {
serde_json::from_str::<YtDlpJson>(json_str)
.map_err(|e| format!("Failed to parse yt-dlp JSON: {e}"))
}
pub fn resolve(url: &str, cookie_source: &CookieSource) -> Result<VideoMetadata, String> {
let cookie_args = cookie_source.to_ytdlp_args();
let mut meta_cmd = Command::new("yt-dlp");
meta_cmd.arg("--dump-json").arg("--no-download");
for arg in &cookie_args {
meta_cmd.arg(arg);
}
meta_cmd.arg(url);
let meta_output = meta_cmd
.output()
.map_err(|e| format!("Failed to run yt-dlp: {e}"))?;
if !meta_output.status.success() {
let stderr = String::from_utf8_lossy(&meta_output.stderr);
return Err(format!("yt-dlp metadata failed: {stderr}"));
}
let json_str = String::from_utf8_lossy(&meta_output.stdout);
let meta = parse_ytdlp_json(&json_str)?;
let mut stream_cmd = Command::new("yt-dlp");
stream_cmd.arg("-g").arg("--no-download");
for arg in &cookie_args {
stream_cmd.arg(arg);
}
stream_cmd.arg(url);
let stream_output = stream_cmd
.output()
.map_err(|e| format!("Failed to get stream URL: {e}"))?;
if !stream_output.status.success() {
let stderr = String::from_utf8_lossy(&stream_output.stderr);
return Err(format!("yt-dlp stream URL failed: {stderr}"));
}
let stream_url = String::from_utf8_lossy(&stream_output.stdout)
.lines()
.next()
.unwrap_or("")
.trim()
.to_string();
if stream_url.is_empty() {
return Err("yt-dlp returned an empty stream URL".to_string());
}
Ok(VideoMetadata {
url: url.to_string(),
title: meta.title,
duration: meta.duration.unwrap_or(0.0),
fps: meta.fps.unwrap_or(30.0),
thumbnail_url: meta.thumbnail,
stream_url,
})
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn test_parse_ytdlp_json_valid() {
let json = r#"{"title": "Test Video", "duration": 125.5, "fps": 29.97, "thumbnail": "https://i.ytimg.com/vi/abc/hqdefault.jpg"}"#;
let result = parse_ytdlp_json(json).unwrap();
assert_eq!(result.title, "Test Video");
assert!((result.duration.unwrap() - 125.5).abs() < 0.001);
assert!((result.fps.unwrap() - 29.97).abs() < 0.001);
assert_eq!(
result.thumbnail.unwrap(),
"https://i.ytimg.com/vi/abc/hqdefault.jpg"
);
}
#[test]
fn test_parse_ytdlp_json_missing_optional_fields() {
let json = r#"{"title": "Minimal Video"}"#;
let result = parse_ytdlp_json(json).unwrap();
assert_eq!(result.title, "Minimal Video");
assert!(result.duration.is_none());
assert!(result.fps.is_none());
assert!(result.thumbnail.is_none());
}
#[test]
fn test_parse_ytdlp_json_invalid() {
let result = parse_ytdlp_json("not json");
assert!(result.is_err());
}
}