#!/usr/bin/env bash
# DHARMA network — start all 19 soul Engrams as background processes.
#
# Each soul gets:
#   - Their own Engram binary instance
#   - ENGRAM_DATA_DIR / ENGRAM_DB_PATH = forge/imprints/<slug>/
#   - ENGRAM_BIND     = 0.0.0.0:<port>
#   - ENGRAM_API_KEY  = ntn-<slug>-2026 per soul (or $DHARMA_API_KEY override)
#
# PIDs are written to forge/imprints/<slug>/engram.pid
# Logs go to forge/log/dharma-<slug>.log
#
# Usage:
#   ./launch_dharma.sh              start all soul Engrams
#   ./launch_dharma.sh <slug>       start one soul by slug
#
# Neuron stays untouched at localhost:8742.

set -euo pipefail

FORGE=/Users/will/Development/neuron-technologies/forge
ENGRAM=/Users/will/Development/neuron-technologies/foundation/engram/dist/engram
REGISTRY="$FORGE/registry.json"

if [ ! -x "$ENGRAM" ]; then
    echo "[dharma] ERROR: engram binary not found at $ENGRAM"
    exit 1
fi

if [ ! -f "$REGISTRY" ]; then
    echo "[dharma] ERROR: registry.json not found at $REGISTRY"
    exit 1
fi

mkdir -p "$FORGE/log"

FILTER="${1:-}"

started=0
skipped=0
missing=0

while IFS='|' read -r slug port subject db_path; do
    [ -z "$slug" ] && continue

    if [ -n "$FILTER" ] && [ "$slug" != "$FILTER" ]; then
        continue
    fi

    full_db_path="$FORGE/$db_path"
    if [ ! -d "$full_db_path" ] || [ -z "$(ls -A "$full_db_path" 2>/dev/null)" ]; then
        echo "[dharma] WARN: $slug — imprint directory missing or empty"
        echo "[dharma]       Run: python3 scripts/install_all.py"
        missing=$((missing + 1))
        continue
    fi

    # Skip if already running on that port
    if lsof -ti tcp:"$port" >/dev/null 2>&1; then
        echo "[dharma] $slug already running on port $port — skipping"
        skipped=$((skipped + 1))
        continue
    fi

    log_file="$FORGE/log/dharma-${slug}.log"
    pid_file="$full_db_path/engram.pid"

    # Per-soul key unless overridden by DHARMA_API_KEY env var
    soul_key="${DHARMA_API_KEY:-ntn-${slug}-2026}"

    echo "[dharma] starting $slug on :$port"

    ENGRAM_DATA_DIR="$full_db_path" \
    ENGRAM_DB_PATH="$full_db_path" \
    ENGRAM_BIND="0.0.0.0:$port" \
    ENGRAM_API_KEY="$soul_key" \
        "$ENGRAM" >> "$log_file" 2>&1 &

    pid=$!
    echo "$pid" > "$pid_file"
    started=$((started + 1))

done < <(python3 - "$REGISTRY" <<'PYEOF'
import json, sys
reg = json.load(open(sys.argv[1]))
for imp in reg["imprints"]:
    print(f"{imp['slug']}|{imp['engram_port']}|{imp['subject']}|{imp.get('engram_db_path', 'imprints/' + imp['slug'])}")
PYEOF
)

echo ""
echo "[dharma] started=$started  skipped=$skipped  missing=$missing"
if [ "$missing" -gt 0 ]; then
    echo "[dharma] Run 'python3 scripts/install_all.py' to install missing souls first."
fi
echo "[dharma] logs: $FORGE/log/dharma-<slug>.log"
echo ""
if [ "$started" -gt 0 ]; then
    echo "[dharma] Verify:"
    echo "  curl -s http://localhost:8801/stats  # bobby-anderson"
    echo "  curl -s http://localhost:8819/stats  # helen-keller"
    echo ""
    echo "[dharma] Then wire peers:"
    echo "  python3 scripts/wire_peers.py"
fi