#!/usr/bin/env bash
###############################################################################
# StepProbe — Progress Monitor
#
# Shows current experiment progress, disk usage, GPU status, and estimates.
#
# Usage:
#   bash scripts/monitor.sh            # one-shot status
#   bash scripts/monitor.sh --watch    # refresh every 30s
###############################################################################
set -euo pipefail

PROJECT_DIR="$(cd "$(dirname "$0")/.." && pwd)"
RESULTS_DIR="${PROJECT_DIR}/results"

WATCH=false
[[ "${1:-}" == "--watch" ]] && WATCH=true

print_status() {
    clear 2>/dev/null || true

    echo "=================================================================="
    echo "  StepProbe — Experiment Progress  $(date '+%Y-%m-%d %H:%M:%S')"
    echo "=================================================================="
    echo ""

    # GPU Status
    echo "🖥  GPU Status:"
    if command -v nvidia-smi &>/dev/null; then
        nvidia-smi --query-gpu=name,memory.used,memory.total,utilization.gpu,temperature.gpu \
            --format=csv,noheader,nounits 2>/dev/null | while IFS=, read -r name mem_used mem_total util temp; do
            local pct=$((100 * mem_used / mem_total))
            echo "   ${name}: ${mem_used}/${mem_total} MB (${pct}%), GPU util: ${util}%, Temp: ${temp}°C"
        done
    else
        echo "   No GPU detected"
    fi
    echo ""

    # Disk Usage
    echo "💾 Disk Usage:"
    if [[ -d "$RESULTS_DIR" ]]; then
        du -sh "$RESULTS_DIR" 2>/dev/null | awk '{print "   Results: " $1}'
        du -sh "${PROJECT_DIR}/figures" 2>/dev/null | awk '{print "   Figures: " $1}' || true
    else
        echo "   No results yet"
    fi
    echo ""

    # Phase Progress
    echo "📊 Pipeline Progress:"
    echo "   ┌─────────────────────────────────────────────────────────┐"

    # Count inference files
    local n_fp16=$(find "${RESULTS_DIR}/inference/fp16" -name "*.jsonl" 2>/dev/null | wc -l)
    local n_quant=$(find "${RESULTS_DIR}/inference" -not -path "*/fp16/*" -not -path "*_restored/*" -name "*.jsonl" 2>/dev/null | wc -l)
    local n_seg=$(find "${RESULTS_DIR}/segmented" -name "*.jsonl" 2>/dev/null | wc -l)
    local n_diag=$(find "${RESULTS_DIR}/diagnosis" -name "*.jsonl" 2>/dev/null | wc -l)
    local n_metrics=$(find "${RESULTS_DIR}/metrics" -name "*_metrics.json" 2>/dev/null | wc -l)
    local n_restored=$(find "${RESULTS_DIR}/restored" -name "adapter_config.json" 2>/dev/null | wc -l)
    local n_reeval=$(find "${RESULTS_DIR}/inference" -path "*_restored*" -name "*.jsonl" 2>/dev/null | wc -l)
    local n_figures=$(find "${PROJECT_DIR}/figures" -name "*.pdf" -o -name "*.png" 2>/dev/null | wc -l)

    printf "   │ Phase 2: FP16 Inference        %3d files          " "$n_fp16"
    [[ $n_fp16 -gt 0 ]] && echo "✅ │" || echo "⬜ │"
    printf "   │ Phase 3: Quantized Inference    %3d files          " "$n_quant"
    [[ $n_quant -gt 0 ]] && echo "✅ │" || echo "⬜ │"
    printf "   │ Phase 4: Segmentation           %3d files          " "$n_seg"
    [[ $n_seg -gt 0 ]] && echo "✅ │" || echo "⬜ │"
    printf "   │ Phase 5: Diagnosis              %3d files          " "$n_diag"
    [[ $n_diag -gt 0 ]] && echo "✅ │" || echo "⬜ │"
    printf "   │ Phase 6: Metrics                %3d files          " "$n_metrics"
    [[ $n_metrics -gt 0 ]] && echo "✅ │" || echo "⬜ │"
    printf "   │ Phase 7: Restoration            %3d adapters       " "$n_restored"
    [[ $n_restored -gt 0 ]] && echo "✅ │" || echo "⬜ │"
    printf "   │ Phase 8: Re-evaluation          %3d files          " "$n_reeval"
    [[ $n_reeval -gt 0 ]] && echo "✅ │" || echo "⬜ │"
    printf "   │ Phase 9: Figures                %3d files          " "$n_figures"
    [[ $n_figures -gt 0 ]] && echo "✅ │" || echo "⬜ │"

    echo "   └─────────────────────────────────────────────────────────┘"
    echo ""

    # Latest metrics summary
    if [[ $n_metrics -gt 0 ]]; then
        echo "📈 Latest Metrics:"
        echo "   ┌────────────────────┬──────────┬────────┬────────┬────────┐"
        echo "   │ Quantization       │ Accuracy │ Δ Acc  │ FFS    │ ECR    │"
        echo "   ├────────────────────┼──────────┼────────┼────────┼────────┤"
        for f in $(find "${RESULTS_DIR}/metrics" -name "*_metrics.json" -type f | sort | tail -10); do
            python3 -c "
import json
with open('$f') as fp:
    m = json.load(fp)
q = m.get('quantization', '?')[:18]
acc = m.get('accuracy', 0)
delta = m.get('accuracy_delta', 0)
ffs = m.get('avg_ffs', 0)
ecr = m.get('ecr', 0)
print(f'   │ {q:<18} │ {acc:>6.1%}   │ {delta:>+5.1%} │ {ffs:>5.1f}  │ {ecr:>5.1%}  │')
" 2>/dev/null || true
        done
        echo "   └────────────────────┴──────────┴────────┴────────┴────────┘"
        echo ""
    fi

    # Running processes
    echo "⚙️  Running Processes:"
    ps aux | grep -E "(run_inference|run_eval|stepprobe)" | grep -v grep | awk '{printf "   PID %s: %s %s\n", $2, $11, $12}' || echo "   None"
    echo ""

    # Latest log
    local latest_log=$(ls -t "${PROJECT_DIR}/logs/"*.log 2>/dev/null | head -1)
    if [[ -n "$latest_log" ]]; then
        echo "📝 Latest Log (last 5 lines):"
        tail -5 "$latest_log" | sed 's/^/   /'
    fi
}

if $WATCH; then
    while true; do
        print_status
        sleep 30
    done
else
    print_status
fi