#!/usr/bin/env bash
# DHARMA network — start all 19 soul Engrams in background.
# Each soul gets their own Engram instance, data directory, and port.
# Neuron's Engram stays untouched at localhost:8742.
#
# Usage:
#   ./launch_dharma.sh          start all soul Engrams
#   ./launch_dharma.sh <slug>   start a single soul by slug
#
# PIDs are written to /tmp/dharma-pids for stop_dharma.sh

set -euo pipefail

FORGE=/Users/will/Development/neuron-technologies/forge
ENGRAM_BIN=/Users/will/Development/neuron-technologies/foundation/engram/dist/engram
PID_FILE=/tmp/dharma-pids

if [ ! -x "$ENGRAM_BIN" ]; then
    echo "[dharma] ERROR: engram binary not found at $ENGRAM_BIN"
    echo "[dharma] Build it with: cd /Users/will/Development/neuron-technologies/foundation/engram && cargo build --release"
    exit 1
fi

# Soul definitions: slug|port
SOULS=(
    "bobby-anderson|8801"
    "alan-turing|8802"
    "albert-einstein|8803"
    "nikola-tesla|8804"
    "leonardo-da-vinci|8805"
    "richard-feynman|8806"
    "carl-sagan|8807"
    "rene-descartes|8808"
    "robin-williams|8809"
    "frederick-douglass|8810"
    "marcus-aurelius|8811"
    "friedrich-nietzsche|8812"
    "james-baldwin|8813"
    "ada-lovelace|8814"
    "harriet-tubman|8815"
    "virginia-woolf|8816"
    "hedy-lamarr|8817"
    "marie-curie|8818"
    "helen-keller|8819"
)

# Optional single-soul filter
FILTER="${1:-}"

# Ensure PID file is clean on fresh launch (without filter)
if [ -z "$FILTER" ]; then
    > "$PID_FILE"
fi

started=0
skipped=0

for entry in "${SOULS[@]}"; do
    slug="${entry%|*}"
    port="${entry#*|}"

    # If a filter is specified, only start matching soul
    if [ -n "$FILTER" ] && [ "$slug" != "$FILTER" ]; then
        continue
    fi

    # Skip if already listening 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

    db_path="$FORGE/imprints/$slug"
    mkdir -p "$db_path"

    api_key="ntn-${slug}-2026"
    log_file="$FORGE/log/dharma-${slug}.log"
    mkdir -p "$FORGE/log"

    echo "[dharma] starting $slug on :$port  (db: imprints/$slug)"

    ENGRAM_DB_PATH="$db_path" \
    ENGRAM_BIND="0.0.0.0:$port" \
    ENGRAM_API_KEY="$api_key" \
    ENGRAM_PEER_NAME="dharma-$slug" \
        "$ENGRAM_BIN" >> "$log_file" 2>&1 &

    pid=$!
    echo "$pid $slug $port" >> "$PID_FILE"
    started=$((started + 1))
done

echo ""
echo "[dharma] started=$started  skipped=$skipped"
echo "[dharma] pids recorded in $PID_FILE"
echo "[dharma] logs in $FORGE/log/dharma-<slug>.log"
echo ""
echo "[dharma] verify with:"
echo "  curl -s http://localhost:8801/stats   # bobby-anderson"
echo "  curl -s http://localhost:8819/stats   # helen-keller"