voirs 0.1.0-alpha.2

//! Performance benchmarking tests for VoiRS components
//!
//! This test suite measures synthesis speed (RTF), memory usage, and throughput
//! to ensure real-time performance requirements are met.

use std::collections::HashMap;
use std::time::{Duration, Instant};
use voirs_acoustic::{
    AcousticModel, DummyAcousticModel, Phoneme as AcousticPhoneme,
    SynthesisConfig as AcousticConfig,
};
use voirs_g2p::{DummyG2p, G2p, LanguageCode};
use voirs_vocoder::{
    DummyVocoder, MelSpectrogram as VocoderMel, SynthesisConfig as VocoderConfig,
    Vocoder,
};

/// Performance benchmark suite for VoiRS
pub struct PerformanceBenchmarks {
    /// Target RTF for real-time synthesis (should be < 1.0)
    target_rtf: f64,
    /// Number of warmup iterations before measurements
    warmup_iterations: usize,
    /// Number of measurement iterations
    measurement_iterations: usize,
}

impl PerformanceBenchmarks {
    /// Create new performance benchmark suite
    pub fn new() -> Self {
        Self {
            target_rtf: 0.5, // Target RTF of 0.5 (2x real-time)
            warmup_iterations: 3,
            measurement_iterations: 10,
        }
    }

    /// Run comprehensive performance benchmarks
    pub async fn run_benchmarks(&self) -> Result<BenchmarkResults, Box<dyn std::error::Error>> {
        println!("⚡ Running Performance Benchmarks");
        println!("================================");
        println!(
            "Target RTF: {} ({}x real-time)",
            self.target_rtf,
            1.0 / self.target_rtf
        );
        println!("Warmup iterations: {}", self.warmup_iterations);
        println!("Measurement iterations: {}", self.measurement_iterations);

        let mut results = BenchmarkResults::new();

        // Benchmark G2P performance
        results.g2p_benchmarks = self.benchmark_g2p().await?;

        // Benchmark Acoustic Model performance
        results.acoustic_benchmarks = self.benchmark_acoustic_model().await?;

        // Benchmark Vocoder performance
        results.vocoder_benchmarks = self.benchmark_vocoder().await?;

        // Benchmark full pipeline performance
        results.pipeline_benchmarks = self.benchmark_full_pipeline().await?;

        // Benchmark memory usage
        results.memory_benchmarks = self.benchmark_memory_usage().await?;

        // Benchmark throughput
        results.throughput_benchmarks = self.benchmark_throughput().await?;

        println!("\n✅ Performance Benchmarks Complete");
        results.print_summary();

        Ok(results)
    }

    /// Benchmark G2P component performance
    async fn benchmark_g2p(&self) -> Result<G2pBenchmarks, Box<dyn std::error::Error>> {
        println!("\n📝 Benchmarking G2P Performance");
        println!("------------------------------");

        let mut benchmarks = G2pBenchmarks::new();
        let g2p = DummyG2p::new();

        // Test cases of varying complexity
        let repetitive_text = "a".repeat(100);
        let test_cases = vec![
            ("hello", "simple"),
            ("hello world", "phrase"),
            ("The quick brown fox jumps over the lazy dog", "sentence"),
            ("This is a longer sentence with more complex words like synthesis and phonological transformation", "complex"),
            (&repetitive_text, "repetitive"), // Stress test
        ];

        for (text, category) in test_cases {
            let display_text = if text.len() > 50 {
                text[..47].to_string() + "..."
            } else {
                text.to_string()
            };
            println!("  Testing {}: \"{}\"", category, display_text);

            // Warmup
            for _ in 0..self.warmup_iterations {
                let _ = g2p.to_phonemes(text, Some(LanguageCode::EnUs)).await?;
            }

            // Measurements
            let mut durations = Vec::new();
            let mut phoneme_counts = Vec::new();

            for _ in 0..self.measurement_iterations {
                let start = Instant::now();
                let phonemes = g2p.to_phonemes(text, Some(LanguageCode::EnUs)).await?;
                let duration = start.elapsed();

                durations.push(duration);
                phoneme_counts.push(phonemes.len());
            }

            let avg_duration = durations.iter().sum::<Duration>() / durations.len() as u32;
            let avg_phonemes = phoneme_counts.iter().sum::<usize>() / phoneme_counts.len();

            // Calculate phonemes per second
            let phonemes_per_sec = if avg_duration.as_secs_f64() > 0.0 {
                avg_phonemes as f64 / avg_duration.as_secs_f64()
            } else {
                0.0
            };

            let benchmark = G2pBenchmark {
                category: category.to_string(),
                text_length: text.len(),
                avg_duration,
                avg_phonemes,
                phonemes_per_sec,
                min_duration: *durations.iter().min().unwrap(),
                max_duration: *durations.iter().max().unwrap(),
            };

            println!(
                "    Duration: {:?} | Phonemes: {} | Rate: {:.1} phonemes/sec",
                avg_duration, avg_phonemes, phonemes_per_sec
            );

            benchmarks.results.insert(category.to_string(), benchmark);
        }

        Ok(benchmarks)
    }

    /// Benchmark Acoustic Model performance
    async fn benchmark_acoustic_model(
        &self,
    ) -> Result<AcousticBenchmarks, Box<dyn std::error::Error>> {
        println!("\n🎵 Benchmarking Acoustic Model Performance");
        println!("----------------------------------------");

        let mut benchmarks = AcousticBenchmarks::new();
        let acoustic_model = DummyAcousticModel::new();

        // Test cases with different phoneme counts
        let test_cases = vec![
            (vec!["h", "ə", "l", "oʊ"], "short"),
            (
                vec!["h", "ə", "l", "oʊ", "w", "ɜː", "r", "l", "d"],
                "medium",
            ),
            (
                vec![
                    "ð", "ə", "k", "w", "ɪ", "k", "b", "r", "aʊ", "n", "f", "ɑ", "k", "s", "ʤ",
                    "ʌ", "m", "p", "s", "oʊ", "v", "ər", "ð", "ə", "l", "eɪ", "z", "i", "d", "ɔ",
                    "g",
                ],
                "long",
            ),
        ];

        for (phoneme_strs, category) in test_cases {
            println!("  Testing {} ({} phonemes)", category, phoneme_strs.len());

            let phonemes: Vec<AcousticPhoneme> = phoneme_strs
                .iter()
                .map(|s| AcousticPhoneme::new(*s))
                .collect();

            let config = AcousticConfig {
                speed: 1.0,
                pitch_shift: 0.0,
                energy: 1.0,
                speaker_id: None,
                seed: Some(42),
                emotion: None,
                voice_style: None,
            };

            // Warmup
            for _ in 0..self.warmup_iterations {
                let _ = acoustic_model.synthesize(&phonemes, Some(&config)).await?;
            }

            // Measurements
            let mut durations = Vec::new();
            let mut mel_specs = Vec::new();

            for _ in 0..self.measurement_iterations {
                let start = Instant::now();
                let mel = acoustic_model.synthesize(&phonemes, Some(&config)).await?;
                let duration = start.elapsed();

                durations.push(duration);
                mel_specs.push(mel);
            }

            let avg_duration = durations.iter().sum::<Duration>() / durations.len() as u32;
            let avg_mel = &mel_specs[0]; // Use first mel for representative metrics
            let audio_duration = avg_mel.duration();

            // Calculate RTF (Real-Time Factor)
            let rtf = if audio_duration > 0.0 {
                avg_duration.as_secs_f64() / audio_duration as f64
            } else {
                f64::INFINITY
            };

            let benchmark = AcousticBenchmark {
                category: category.to_string(),
                phoneme_count: phonemes.len(),
                avg_duration,
                audio_duration,
                rtf,
                mel_dimensions: (avg_mel.n_mels, avg_mel.n_frames),
                min_duration: *durations.iter().min().unwrap(),
                max_duration: *durations.iter().max().unwrap(),
                meets_realtime: rtf < 1.0,
            };

            println!(
                "    Duration: {:?} | Audio: {:.2}s | RTF: {:.3} | Mel: {}x{}",
                avg_duration, audio_duration, rtf, avg_mel.n_mels, avg_mel.n_frames
            );

            if rtf < self.target_rtf {
                println!("    ✅ Meets target RTF ({:.2})", self.target_rtf);
            } else if rtf < 1.0 {
                println!("    ⚠️  Real-time but above target RTF");
            } else {
                println!("    ❌ Slower than real-time");
            }

            benchmarks.results.insert(category.to_string(), benchmark);
        }

        Ok(benchmarks)
    }

    /// Benchmark Vocoder performance
    async fn benchmark_vocoder(&self) -> Result<VocoderBenchmarks, Box<dyn std::error::Error>> {
        println!("\n🔊 Benchmarking Vocoder Performance");
        println!("----------------------------------");

        let mut benchmarks = VocoderBenchmarks::new();
        let vocoder = DummyVocoder::new();

        // Test cases with different mel spectrogram sizes
        let test_cases = vec![
            ((80, 50), "short"),     // ~1 second at 22kHz
            ((80, 100), "medium"),   // ~2 seconds
            ((80, 200), "long"),     // ~4 seconds
            ((80, 500), "extended"), // ~10 seconds
        ];

        for ((n_mels, n_frames), category) in test_cases {
            println!("  Testing {} ({}x{} mel)", category, n_mels, n_frames);

            // Create test mel spectrogram
            let mel_data = vec![vec![0.5f32; n_frames]; n_mels];
            let mel = VocoderMel::new(mel_data, 22050, 256);

            let config = VocoderConfig {
                speed: 1.0,
                pitch_shift: 0.0,
                energy: 1.0,
                speaker_id: None,
                seed: Some(42),
            };

            // Calculate expected audio duration
            let audio_duration = (n_frames * 256) as f64 / 22050.0; // hop_length * frames / sample_rate

            // Warmup
            for _ in 0..self.warmup_iterations {
                let _ = vocoder.vocode(&mel, Some(&config)).await?;
            }

            // Measurements
            let mut durations = Vec::new();
            let mut audio_buffers = Vec::new();

            for _ in 0..self.measurement_iterations {
                let start = Instant::now();
                let audio = vocoder.vocode(&mel, Some(&config)).await?;
                let duration = start.elapsed();

                durations.push(duration);
                audio_buffers.push(audio);
            }

            let avg_duration = durations.iter().sum::<Duration>() / durations.len() as u32;
            let avg_audio = &audio_buffers[0]; // Representative audio

            // Calculate RTF
            let rtf = if audio_duration > 0.0 {
                avg_duration.as_secs_f64() / audio_duration
            } else {
                f64::INFINITY
            };

            let benchmark = VocoderBenchmark {
                category: category.to_string(),
                mel_dimensions: (n_mels, n_frames),
                avg_duration,
                audio_duration,
                rtf,
                audio_samples: avg_audio.len(),
                min_duration: *durations.iter().min().unwrap(),
                max_duration: *durations.iter().max().unwrap(),
                meets_realtime: rtf < 1.0,
            };

            println!(
                "    Duration: {:?} | Audio: {:.2}s | RTF: {:.3} | Samples: {}",
                avg_duration,
                audio_duration,
                rtf,
                avg_audio.len()
            );

            if rtf < self.target_rtf {
                println!("    ✅ Meets target RTF ({:.2})", self.target_rtf);
            } else if rtf < 1.0 {
                println!("    ⚠️  Real-time but above target RTF");
            } else {
                println!("    ❌ Slower than real-time");
            }

            benchmarks.results.insert(category.to_string(), benchmark);
        }

        Ok(benchmarks)
    }

    /// Benchmark full pipeline performance
    async fn benchmark_full_pipeline(
        &self,
    ) -> Result<PipelineBenchmarks, Box<dyn std::error::Error>> {
        println!("\n🔄 Benchmarking Full Pipeline Performance");
        println!("---------------------------------------");

        let mut benchmarks = PipelineBenchmarks::new();

        // Initialize components
        let g2p = DummyG2p::new();
        let acoustic_model = DummyAcousticModel::new();
        let vocoder = DummyVocoder::new();

        let test_cases = vec![
            ("hello", "word"),
            ("hello world", "phrase"),
            ("The quick brown fox", "sentence"),
            (
                "Text-to-speech synthesis is the artificial production of human speech",
                "paragraph",
            ),
        ];

        for (text, category) in test_cases {
            println!("  Testing {}: \"{}\"", category, text);

            let acoustic_config = AcousticConfig {
                speed: 1.0,
                pitch_shift: 0.0,
                energy: 1.0,
                speaker_id: None,
                seed: Some(42),
                emotion: None,
                voice_style: None,
            };

            let vocoder_config = VocoderConfig {
                speed: 1.0,
                pitch_shift: 0.0,
                energy: 1.0,
                speaker_id: None,
                seed: Some(42),
            };

            // Warmup
            for _ in 0..self.warmup_iterations {
                let phonemes = g2p.to_phonemes(text, Some(LanguageCode::EnUs)).await?;
                let acoustic_phonemes: Vec<AcousticPhoneme> = phonemes
                    .iter()
                    .map(|p| AcousticPhoneme::new(&p.symbol))
                    .collect();
                let mel = acoustic_model
                    .synthesize(&acoustic_phonemes, Some(&acoustic_config))
                    .await?;
                let vocoder_mel =
                    VocoderMel::new(mel.data.clone(), mel.sample_rate, mel.hop_length);
                let _ = vocoder.vocode(&vocoder_mel, Some(&vocoder_config)).await?;
            }

            // Measurements
            let mut total_durations = Vec::new();
            let mut g2p_durations = Vec::new();
            let mut acoustic_durations = Vec::new();
            let mut vocoder_durations = Vec::new();
            let mut audio_durations = Vec::new();

            for _ in 0..self.measurement_iterations {
                let total_start = Instant::now();

                // G2P phase
                let g2p_start = Instant::now();
                let phonemes = g2p.to_phonemes(text, Some(LanguageCode::EnUs)).await?;
                let g2p_duration = g2p_start.elapsed();

                // Acoustic phase
                let acoustic_start = Instant::now();
                let acoustic_phonemes: Vec<AcousticPhoneme> = phonemes
                    .iter()
                    .map(|p| AcousticPhoneme::new(&p.symbol))
                    .collect();
                let mel = acoustic_model
                    .synthesize(&acoustic_phonemes, Some(&acoustic_config))
                    .await?;
                let acoustic_duration = acoustic_start.elapsed();

                // Vocoder phase
                let vocoder_start = Instant::now();
                let vocoder_mel =
                    VocoderMel::new(mel.data.clone(), mel.sample_rate, mel.hop_length);
                let audio = vocoder.vocode(&vocoder_mel, Some(&vocoder_config)).await?;
                let vocoder_duration = vocoder_start.elapsed();

                let total_duration = total_start.elapsed();
                let audio_duration = audio.len() as f64 / audio.sample_rate() as f64;

                total_durations.push(total_duration);
                g2p_durations.push(g2p_duration);
                acoustic_durations.push(acoustic_duration);
                vocoder_durations.push(vocoder_duration);
                audio_durations.push(audio_duration);
            }

            let avg_total = total_durations.iter().sum::<Duration>() / total_durations.len() as u32;
            let avg_g2p = g2p_durations.iter().sum::<Duration>() / g2p_durations.len() as u32;
            let avg_acoustic =
                acoustic_durations.iter().sum::<Duration>() / acoustic_durations.len() as u32;
            let avg_vocoder =
                vocoder_durations.iter().sum::<Duration>() / vocoder_durations.len() as u32;
            let avg_audio_duration =
                audio_durations.iter().sum::<f64>() / audio_durations.len() as f64;

            let total_rtf = if avg_audio_duration > 0.0 {
                avg_total.as_secs_f64() / avg_audio_duration
            } else {
                f64::INFINITY
            };

            let benchmark = PipelineBenchmark {
                category: category.to_string(),
                text_length: text.len(),
                total_duration: avg_total,
                g2p_duration: avg_g2p,
                acoustic_duration: avg_acoustic,
                vocoder_duration: avg_vocoder,
                audio_duration: avg_audio_duration,
                total_rtf,
                meets_realtime: total_rtf < 1.0,
                meets_target: total_rtf < self.target_rtf,
            };

            println!(
                "    Total: {:?} | G2P: {:?} | Acoustic: {:?} | Vocoder: {:?}",
                avg_total, avg_g2p, avg_acoustic, avg_vocoder
            );
            println!(
                "    Audio: {:.2}s | RTF: {:.3}",
                avg_audio_duration, total_rtf
            );

            if total_rtf < self.target_rtf {
                println!("    ✅ Meets target RTF ({:.2})", self.target_rtf);
            } else if total_rtf < 1.0 {
                println!("    ⚠️  Real-time but above target RTF");
            } else {
                println!("    ❌ Slower than real-time");
            }

            benchmarks.results.insert(category.to_string(), benchmark);
        }

        Ok(benchmarks)
    }

    /// Benchmark memory usage
    async fn benchmark_memory_usage(&self) -> Result<MemoryBenchmarks, Box<dyn std::error::Error>> {
        println!("\n💾 Benchmarking Memory Usage");
        println!("---------------------------");

        let mut benchmarks = MemoryBenchmarks::new();

        // Test memory usage with different workloads
        let large_text = "This is a longer text for testing memory usage. ".repeat(10);
        let test_cases = vec![
            ("small", "hello"),
            ("medium", "The quick brown fox jumps over the lazy dog"),
            ("large", &large_text),
        ];

        for (category, text) in test_cases {
            println!("  Testing {} workload", category);

            let initial_memory = self.get_memory_usage();

            // Initialize components
            let g2p = DummyG2p::new();
            let acoustic_model = DummyAcousticModel::new();
            let vocoder = DummyVocoder::new();

            let after_init_memory = self.get_memory_usage();

            // Run pipeline multiple times to test memory accumulation
            let mut peak_memory = after_init_memory;
            for i in 0..10 {
                let phonemes = g2p.to_phonemes(text, Some(LanguageCode::EnUs)).await?;
                let acoustic_phonemes: Vec<AcousticPhoneme> = phonemes
                    .iter()
                    .map(|p| AcousticPhoneme::new(&p.symbol))
                    .collect();

                let config = AcousticConfig {
                    speed: 1.0,
                    pitch_shift: 0.0,
                    energy: 1.0,
                    speaker_id: None,
                    seed: Some(42),
                    emotion: None,
                    voice_style: None,
                };

                let mel = acoustic_model
                    .synthesize(&acoustic_phonemes, Some(&config))
                    .await?;
                let vocoder_mel =
                    VocoderMel::new(mel.data.clone(), mel.sample_rate, mel.hop_length);

                let vocoder_config = VocoderConfig {
                    speed: 1.0,
                    pitch_shift: 0.0,
                    energy: 1.0,
                    speaker_id: None,
                    seed: Some(42),
                };

                let _audio = vocoder.vocode(&vocoder_mel, Some(&vocoder_config)).await?;

                let current_memory = self.get_memory_usage();
                if current_memory > peak_memory {
                    peak_memory = current_memory;
                }

                // Force garbage collection attempt (not guaranteed in Rust)
                if i % 3 == 0 {
                    tokio::task::yield_now().await;
                }
            }

            let final_memory = self.get_memory_usage();

            let benchmark = MemoryBenchmark {
                category: category.to_string(),
                initial_memory,
                after_init_memory,
                peak_memory,
                final_memory,
                memory_growth: final_memory - initial_memory,
                peak_growth: peak_memory - initial_memory,
            };

            println!(
                "    Initial: {} KB | After init: {} KB | Peak: {} KB | Final: {} KB",
                initial_memory / 1024,
                after_init_memory / 1024,
                peak_memory / 1024,
                final_memory / 1024
            );
            println!(
                "    Growth: {} KB | Peak growth: {} KB",
                benchmark.memory_growth / 1024,
                benchmark.peak_growth / 1024
            );

            benchmarks.results.insert(category.to_string(), benchmark);
        }

        Ok(benchmarks)
    }

    /// Benchmark throughput (requests per second)
    async fn benchmark_throughput(
        &self,
    ) -> Result<ThroughputBenchmarks, Box<dyn std::error::Error>> {
        println!("\n🚀 Benchmarking Throughput");
        println!("-------------------------");

        let mut benchmarks = ThroughputBenchmarks::new();

        // Test concurrent processing
        let test_cases = vec![(1, "sequential"), (2, "dual"), (4, "quad"), (8, "octa")];

        let test_text = "performance test";

        for (concurrency, category) in test_cases {
            println!(
                "  Testing {} processing (concurrency: {})",
                category, concurrency
            );

            let start_time = Instant::now();
            let iterations = 20; // Total iterations across all concurrent tasks

            // Run concurrent tasks
            let mut handles = Vec::new();
            let iterations_per_task = iterations / concurrency;

            for _ in 0..concurrency {
                let text = test_text.to_string();
                let handle = tokio::spawn(async move {
                    let g2p = DummyG2p::new();
                    let acoustic_model = DummyAcousticModel::new();
                    let vocoder = DummyVocoder::new();

                    let mut task_durations = Vec::new();

                    for _ in 0..iterations_per_task {
                        let task_start = Instant::now();

                        let phonemes = g2p
                            .to_phonemes(&text, Some(LanguageCode::EnUs))
                            .await
                            .unwrap();
                        let acoustic_phonemes: Vec<AcousticPhoneme> = phonemes
                            .iter()
                            .map(|p| AcousticPhoneme::new(&p.symbol))
                            .collect();

                        let acoustic_config = AcousticConfig {
                            speed: 1.0,
                            pitch_shift: 0.0,
                            energy: 1.0,
                            speaker_id: None,
                            seed: Some(42),
                            emotion: None,
                            voice_style: None,
                        };

                        let mel = acoustic_model
                            .synthesize(&acoustic_phonemes, Some(&acoustic_config))
                            .await
                            .unwrap();
                        let vocoder_mel =
                            VocoderMel::new(mel.data.clone(), mel.sample_rate, mel.hop_length);

                        let vocoder_config = VocoderConfig {
                            speed: 1.0,
                            pitch_shift: 0.0,
                            energy: 1.0,
                            speaker_id: None,
                            seed: Some(42),
                        };

                        let _audio = vocoder
                            .vocode(&vocoder_mel, Some(&vocoder_config))
                            .await
                            .unwrap();

                        task_durations.push(task_start.elapsed());
                    }

                    task_durations
                });
                handles.push(handle);
            }

            // Wait for all tasks to complete
            let mut all_durations = Vec::new();
            for handle in handles {
                let task_durations = handle.await?;
                all_durations.extend(task_durations);
            }

            let total_time = start_time.elapsed();
            let avg_per_request =
                all_durations.iter().sum::<Duration>() / all_durations.len() as u32;
            let requests_per_second = iterations as f64 / total_time.as_secs_f64();

            let benchmark = ThroughputBenchmark {
                category: category.to_string(),
                concurrency,
                total_requests: iterations,
                total_time,
                avg_per_request,
                requests_per_second,
                min_request_time: *all_durations.iter().min().unwrap(),
                max_request_time: *all_durations.iter().max().unwrap(),
            };

            println!(
                "    Total time: {:?} | Avg per request: {:?}",
                total_time, avg_per_request
            );
            println!(
                "    Requests/sec: {:.2} | Min: {:?} | Max: {:?}",
                requests_per_second, benchmark.min_request_time, benchmark.max_request_time
            );

            benchmarks.results.insert(category.to_string(), benchmark);
        }

        Ok(benchmarks)
    }

    /// Get current memory usage (simplified implementation)
    fn get_memory_usage(&self) -> usize {
        // This is a simplified implementation
        // In a real scenario, you might use system calls or profiling tools
        // For now, return a mock value as the actual memory API has changed
        1024 * 1024 // Return 1MB as a placeholder
    }
}

/// Results structure for all performance benchmarks
#[derive(Debug)]
pub struct BenchmarkResults {
    pub g2p_benchmarks: G2pBenchmarks,
    pub acoustic_benchmarks: AcousticBenchmarks,
    pub vocoder_benchmarks: VocoderBenchmarks,
    pub pipeline_benchmarks: PipelineBenchmarks,
    pub memory_benchmarks: MemoryBenchmarks,
    pub throughput_benchmarks: ThroughputBenchmarks,
}

impl BenchmarkResults {
    pub fn new() -> Self {
        Self {
            g2p_benchmarks: G2pBenchmarks::new(),
            acoustic_benchmarks: AcousticBenchmarks::new(),
            vocoder_benchmarks: VocoderBenchmarks::new(),
            pipeline_benchmarks: PipelineBenchmarks::new(),
            memory_benchmarks: MemoryBenchmarks::new(),
            throughput_benchmarks: ThroughputBenchmarks::new(),
        }
    }

    pub fn print_summary(&self) {
        println!("\n📊 Performance Benchmark Summary");
        println!("===============================");

        // G2P Summary
        let g2p_avg_rate: f64 = self
            .g2p_benchmarks
            .results
            .values()
            .map(|b| b.phonemes_per_sec)
            .sum::<f64>()
            / self.g2p_benchmarks.results.len() as f64;
        println!("G2P Performance:");
        println!("  - Average phonemes/sec: {:.1}", g2p_avg_rate);

        // Acoustic Summary
        let acoustic_rtfs: Vec<f64> = self
            .acoustic_benchmarks
            .results
            .values()
            .map(|b| b.rtf)
            .collect();
        let acoustic_avg_rtf = acoustic_rtfs.iter().sum::<f64>() / acoustic_rtfs.len() as f64;
        let acoustic_realtime_count = self
            .acoustic_benchmarks
            .results
            .values()
            .filter(|b| b.meets_realtime)
            .count();
        println!("Acoustic Model Performance:");
        println!("  - Average RTF: {:.3}", acoustic_avg_rtf);
        println!(
            "  - Real-time capable: {}/{}",
            acoustic_realtime_count,
            self.acoustic_benchmarks.results.len()
        );

        // Vocoder Summary
        let vocoder_rtfs: Vec<f64> = self
            .vocoder_benchmarks
            .results
            .values()
            .map(|b| b.rtf)
            .collect();
        let vocoder_avg_rtf = vocoder_rtfs.iter().sum::<f64>() / vocoder_rtfs.len() as f64;
        let vocoder_realtime_count = self
            .vocoder_benchmarks
            .results
            .values()
            .filter(|b| b.meets_realtime)
            .count();
        println!("Vocoder Performance:");
        println!("  - Average RTF: {:.3}", vocoder_avg_rtf);
        println!(
            "  - Real-time capable: {}/{}",
            vocoder_realtime_count,
            self.vocoder_benchmarks.results.len()
        );

        // Pipeline Summary
        let pipeline_rtfs: Vec<f64> = self
            .pipeline_benchmarks
            .results
            .values()
            .map(|b| b.total_rtf)
            .collect();
        let pipeline_avg_rtf = pipeline_rtfs.iter().sum::<f64>() / pipeline_rtfs.len() as f64;
        let pipeline_realtime_count = self
            .pipeline_benchmarks
            .results
            .values()
            .filter(|b| b.meets_realtime)
            .count();
        println!("Full Pipeline Performance:");
        println!("  - Average RTF: {:.3}", pipeline_avg_rtf);
        println!(
            "  - Real-time capable: {}/{}",
            pipeline_realtime_count,
            self.pipeline_benchmarks.results.len()
        );

        // Throughput Summary
        let max_throughput = self
            .throughput_benchmarks
            .results
            .values()
            .map(|b| b.requests_per_second)
            .fold(0.0f64, f64::max);
        println!("Throughput Performance:");
        println!("  - Max requests/sec: {:.2}", max_throughput);
    }
}

// Individual benchmark result structures
#[derive(Debug)]
pub struct G2pBenchmarks {
    pub results: HashMap<String, G2pBenchmark>,
}

impl G2pBenchmarks {
    pub fn new() -> Self {
        Self {
            results: HashMap::new(),
        }
    }
}

#[derive(Debug)]
pub struct G2pBenchmark {
    pub category: String,
    pub text_length: usize,
    pub avg_duration: Duration,
    pub avg_phonemes: usize,
    pub phonemes_per_sec: f64,
    pub min_duration: Duration,
    pub max_duration: Duration,
}

#[derive(Debug)]
pub struct AcousticBenchmarks {
    pub results: HashMap<String, AcousticBenchmark>,
}

impl AcousticBenchmarks {
    pub fn new() -> Self {
        Self {
            results: HashMap::new(),
        }
    }
}

#[derive(Debug)]
pub struct AcousticBenchmark {
    pub category: String,
    pub phoneme_count: usize,
    pub avg_duration: Duration,
    pub audio_duration: f32,
    pub rtf: f64,
    pub mel_dimensions: (usize, usize),
    pub min_duration: Duration,
    pub max_duration: Duration,
    pub meets_realtime: bool,
}

#[derive(Debug)]
pub struct VocoderBenchmarks {
    pub results: HashMap<String, VocoderBenchmark>,
}

impl VocoderBenchmarks {
    pub fn new() -> Self {
        Self {
            results: HashMap::new(),
        }
    }
}

#[derive(Debug)]
pub struct VocoderBenchmark {
    pub category: String,
    pub mel_dimensions: (usize, usize),
    pub avg_duration: Duration,
    pub audio_duration: f64,
    pub rtf: f64,
    pub audio_samples: usize,
    pub min_duration: Duration,
    pub max_duration: Duration,
    pub meets_realtime: bool,
}

#[derive(Debug)]
pub struct PipelineBenchmarks {
    pub results: HashMap<String, PipelineBenchmark>,
}

impl PipelineBenchmarks {
    pub fn new() -> Self {
        Self {
            results: HashMap::new(),
        }
    }
}

#[derive(Debug)]
pub struct PipelineBenchmark {
    pub category: String,
    pub text_length: usize,
    pub total_duration: Duration,
    pub g2p_duration: Duration,
    pub acoustic_duration: Duration,
    pub vocoder_duration: Duration,
    pub audio_duration: f64,
    pub total_rtf: f64,
    pub meets_realtime: bool,
    pub meets_target: bool,
}

#[derive(Debug)]
pub struct MemoryBenchmarks {
    pub results: HashMap<String, MemoryBenchmark>,
}

impl MemoryBenchmarks {
    pub fn new() -> Self {
        Self {
            results: HashMap::new(),
        }
    }
}

#[derive(Debug)]
pub struct MemoryBenchmark {
    pub category: String,
    pub initial_memory: usize,
    pub after_init_memory: usize,
    pub peak_memory: usize,
    pub final_memory: usize,
    pub memory_growth: usize,
    pub peak_growth: usize,
}

#[derive(Debug)]
pub struct ThroughputBenchmarks {
    pub results: HashMap<String, ThroughputBenchmark>,
}

impl ThroughputBenchmarks {
    pub fn new() -> Self {
        Self {
            results: HashMap::new(),
        }
    }
}

#[derive(Debug)]
pub struct ThroughputBenchmark {
    pub category: String,
    pub concurrency: usize,
    pub total_requests: usize,
    pub total_time: Duration,
    pub avg_per_request: Duration,
    pub requests_per_second: f64,
    pub min_request_time: Duration,
    pub max_request_time: Duration,
}

#[tokio::test]
async fn test_performance_benchmarks() {
    let benchmark_suite = PerformanceBenchmarks::new();

    let results = benchmark_suite
        .run_benchmarks()
        .await
        .expect("Performance benchmarks failed");

    // Validate that benchmarks ran successfully
    assert!(
        !results.g2p_benchmarks.results.is_empty(),
        "G2P benchmarks should have results"
    );
    assert!(
        !results.acoustic_benchmarks.results.is_empty(),
        "Acoustic benchmarks should have results"
    );
    assert!(
        !results.vocoder_benchmarks.results.is_empty(),
        "Vocoder benchmarks should have results"
    );
    assert!(
        !results.pipeline_benchmarks.results.is_empty(),
        "Pipeline benchmarks should have results"
    );

    // Check that at least some components can run in real-time
    let realtime_components = results
        .pipeline_benchmarks
        .results
        .values()
        .filter(|b| b.meets_realtime)
        .count();

    println!(
        "Real-time capable pipeline configurations: {}",
        realtime_components
    );
    // Note: We don't assert realtime performance for dummy implementations
}