setup

#!/usr/bin/env bash
set -euo pipefail

# Facet setup — verify dependencies and print quickstart

SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
PASS="[ok]"
FAIL="[MISSING]"
errors=0

echo ""
echo "Facet — Pre-Launch Simulation Engine"
echo "====================================="
echo ""

# Check claude CLI
if command -v claude &>/dev/null; then
    version=$(claude --version 2>/dev/null | head -1 || echo "unknown")
    echo "  $PASS claude CLI ($version)"
else
    echo "  $FAIL claude CLI — install: https://docs.anthropic.com/en/docs/claude-cli"
    ((errors++))
fi

# Check python3
if command -v python3 &>/dev/null; then
    version=$(python3 --version 2>/dev/null | head -1 || echo "unknown")
    echo "  $PASS python3 ($version)"
else
    echo "  $FAIL python3 — required for stream_filter.py"
    ((errors++))
fi

# Check PyYAML
if python3 -c "import yaml" &>/dev/null; then
    echo "  $PASS PyYAML"
else
    echo "  $FAIL PyYAML — install: pip3 install pyyaml"
    ((errors++))
fi

# Check bash
if command -v bash &>/dev/null; then
    version=$(bash --version 2>/dev/null | head -1 | sed 's/GNU bash, version //' | cut -d'(' -f1 || echo "unknown")
    echo "  $PASS bash ($version)"
else
    echo "  $FAIL bash"
    ((errors++))
fi

# Check file integrity
echo ""
template_count=$(find "$SCRIPT_DIR/templates" -name "*.md" -type f 2>/dev/null | wc -l | tr -d ' ')
studytype_count=$(find "$SCRIPT_DIR/study-types" -name "*.md" -type f 2>/dev/null | wc -l | tr -d ' ')
example_count=$(find "$SCRIPT_DIR/examples" -name "*.md" -type f 2>/dev/null | wc -l | tr -d ' ')

if [ "$template_count" -ge 4 ]; then
    echo "  $PASS templates/ ($template_count files)"
else
    echo "  $FAIL templates/ — expected 4+ files, found $template_count"
    ((errors++))
fi

if [ "$studytype_count" -ge 3 ]; then
    echo "  $PASS study-types/ ($studytype_count files)"
else
    echo "  $FAIL study-types/ — expected 3+ files, found $studytype_count"
    ((errors++))
fi

if [ "$example_count" -ge 2 ]; then
    echo "  $PASS examples/ ($example_count files)"
else
    echo "  $FAIL examples/ — expected 2+ files, found $example_count"
    ((errors++))
fi

if [ -f "$SCRIPT_DIR/sim.sh" ]; then
    echo "  $PASS sim.sh"
else
    echo "  $FAIL sim.sh — main orchestrator missing"
    ((errors++))
fi

if [ -f "$SCRIPT_DIR/stream_filter.py" ]; then
    echo "  $PASS stream_filter.py"
else
    echo "  $FAIL stream_filter.py — progress display missing"
    ((errors++))
fi

echo ""

if [ "$errors" -gt 0 ]; then
    echo "  $errors issue(s) found. Fix the above before running Facet."
    echo ""
    exit 1
fi

echo "  Ready to go."
echo ""
echo "  Quickstart:"
echo "    ./sim.sh init --config examples/superhuman-product.md --name my-study"
echo "    ./sim.sh study --panel output/my-study/ --config examples/superhuman-pricing.md"
echo "    ./sim.sh status --panel output/my-study/"
echo ""