#!/bin/bash
# Start relay service with proper environment loading

cd "$(dirname "$0")"
PROJECT_ROOT="$(cd ../.. && pwd)"
PROFILE="${1:-}"

# Production relays run on Proxmox (/opt/smom-dbis-138), not operator workstation checkouts.
if [[ -f "$PROJECT_ROOT/../../scripts/lib/chainlink-production-placement.sh" ]]; then
    # shellcheck source=../../scripts/lib/chainlink-production-placement.sh
    source "$PROJECT_ROOT/../../scripts/lib/chainlink-production-placement.sh"
    require_ccip_relay_on_proxmox || exit 1
elif [[ "$(pwd)" == *"/projects/"*"/services/relay"* ]] && [[ "${CCIP_RELAY_ALLOW_LOCAL:-0}" != "1" ]]; then
    echo "ERROR: CCIP relay must run on Proxmox r630-01 (/opt/smom-dbis-138/services/relay). Set CCIP_RELAY_ALLOW_LOCAL=1 for dev." >&2
    exit 1
fi
SKIP_ENV_LOCAL="${RELAY_SKIP_ENV_LOCAL:-0}"

declare -A ORIGINAL_ENV_VARS=()
while IFS='=' read -r key _; do
    [ -n "$key" ] || continue
    ORIGINAL_ENV_VARS["$key"]=1
done < <(env)

# Try to load NVM if available
if [ -f "$HOME/.nvm/nvm.sh" ]; then
    source "$HOME/.nvm/nvm.sh"
    nvm use node 2>/dev/null || nvm use --lts 2>/dev/null || true
elif [ -f "/usr/local/nvm/nvm.sh" ]; then
    source "/usr/local/nvm/nvm.sh"
    nvm use node 2>/dev/null || nvm use --lts 2>/dev/null || true
fi

load_env_file() {
    local env_file="$1"
    [ -f "$env_file" ] || return 0
    while IFS= read -r line || [ -n "$line" ]; do
        [[ "$line" =~ ^#.*$ ]] && continue
        [[ -z "$line" ]] && continue
        local key="${line%%=*}"
        local value="${line#*=}"
        if [[ -n "${ORIGINAL_ENV_VARS[$key]:-}" ]]; then
            continue
        fi
        if [[ "$value" == *'${PRIVATE_KEY'* ]] && [ -n "${PRIVATE_KEY:-}" ] && [[ "$key" == "PRIVATE_KEY" || "$key" == "RELAYER_PRIVATE_KEY" ]]; then
            export "$key=$PRIVATE_KEY"
            continue
        fi
        if [[ "$line" =~ \$\{PRIVATE_KEY\} ]] && [ -n "${PRIVATE_KEY:-}" ]; then
            export "${line//\$\{PRIVATE_KEY\}/$PRIVATE_KEY}"
            continue
        fi
        export "$line"
    done < "$env_file"
}

# Load project env through the shared loader so secure-secrets fallbacks and RPC cleanup
# behave the same way they do in deployment scripts.
if [ -f "$PROJECT_ROOT/scripts/load-env.sh" ]; then
    # shellcheck disable=SC1090
    source "$PROJECT_ROOT/scripts/load-env.sh" >/dev/null 2>&1
elif [ -f "$PROJECT_ROOT/.env" ]; then
    source "$PROJECT_ROOT/.env"
fi

if [ -f .env ]; then
    load_env_file .env
fi

# Profile-specific env should win over repo defaults, but .env.local remains the
# highest-precedence operator override for ad hoc experiments.
if [ -n "$PROFILE" ] && [ -f ".env.$PROFILE" ]; then
    load_env_file ".env.$PROFILE"
fi

# Named profiles (mainnet-cw, bsc, …) must not inherit destination overrides from .env.local
# unless explicitly allowed — mixing caused mainnet router addresses on Avalanche RPC.
if [ "$SKIP_ENV_LOCAL" != "1" ] && [ -f .env.local ]; then
    if [ -n "$PROFILE" ] && [ "${RELAY_ALLOW_ENV_LOCAL:-0}" != "1" ]; then
        echo "Note: skipping .env.local for profile=$PROFILE (set RELAY_ALLOW_ENV_LOCAL=1 to override)"
    else
        load_env_file .env.local
    fi
fi

if [ -n "$PROFILE" ]; then
    export RELAY_PROFILE="$PROFILE"
fi

# Ensure PRIVATE_KEY is exported
if [ -n "$PRIVATE_KEY" ]; then
    export PRIVATE_KEY
    if { [ "$PROFILE" = "mainnet-link-138" ] || [ -z "$PROFILE" ]; } && [ -n "${CCIP_MAINNET_LINK138_RELAYER_PRIVATE_KEY:-}" ]; then
        : # dedicated relayer set below
    else
        export RELAYER_PRIVATE_KEY="$PRIVATE_KEY"
    fi
fi

# Dedicated relayer for mainnet-link-138 and default WETH lane (wins over deployer PRIVATE_KEY).
if { [ "$PROFILE" = "mainnet-link-138" ] || [ -z "$PROFILE" ]; } && [ -n "${CCIP_MAINNET_LINK138_RELAYER_PRIVATE_KEY:-}" ]; then
    export RELAYER_PRIVATE_KEY="$CCIP_MAINNET_LINK138_RELAYER_PRIVATE_KEY"
    if [ -n "${CCIP_MAINNET_LINK138_RELAYER_ADDRESS:-}" ]; then
        export RELAYER_ADDRESS="$CCIP_MAINNET_LINK138_RELAYER_ADDRESS"
    fi
fi

# Check if npm is available
if ! command -v npm > /dev/null 2>&1; then
    echo "Error: npm is not found. Please install Node.js and npm first."
    echo "Install with: curl -fsSL https://deb.nodesource.com/setup_20.x | sudo -E bash - && sudo apt-get install -y nodejs"
    exit 1
fi

# Start service
npm start
