#!/bin/bash
# Price Feed Keeper Service (Bash version)
# Simple bash-based keeper that calls the keeper contract periodically

set -e

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
PROJECT_ROOT="$(cd "$SCRIPT_DIR/../.." && pwd)"
cd "$PROJECT_ROOT"
source "$PROJECT_ROOT/scripts/load-env.sh" >/dev/null 2>&1 || true

# Load environment variables
if [ -f .env ]; then
    source .env
fi

# Configuration
RPC_URL="${RPC_URL_138:-http://localhost:8545}"
KEEPER_ADDRESS="${PRICE_FEED_KEEPER_ADDRESS}"
UPDATE_INTERVAL="${UPDATE_INTERVAL:-6}" # seconds (PMM mesh / peg tick cadence)
MAX_RETRIES=3

# Colors for output
RED='\033[0;31m'
GREEN='\033[0;32m'
YELLOW='\033[1;33m'
NC='\033[0m' # No Color

# Statistics
UPDATE_COUNT=0
ERROR_COUNT=0

# Function to log messages
log() {
    echo -e "[$(date +'%Y-%m-%d %H:%M:%S')] $1"
}

# Function to check if upkeep is needed
check_upkeep() {
    forge script script/reserve/CheckUpkeep.s.sol:CheckUpkeep \
        --rpc-url "$RPC_URL" \
        --silent 2>/dev/null | grep -E "(needsUpdate|assets)" || echo "false"
}

# Function to perform upkeep
perform_upkeep() {
    log "${YELLOW}Performing upkeep...${NC}"

    local retries=0
    local success=false

    while [ $retries -lt $MAX_RETRIES ] && [ "$success" = false ]; do
        if forge script script/reserve/PerformUpkeep.s.sol:PerformUpkeep \
            --rpc-url "$RPC_URL" \
            --broadcast \
            --silent 2>/dev/null; then
            success=true
            UPDATE_COUNT=$((UPDATE_COUNT + 1))
            log "${GREEN}✓ Upkeep successful${NC}"
        else
            retries=$((retries + 1))
            if [ $retries -lt $MAX_RETRIES ]; then
                log "${YELLOW}Retry $retries/$MAX_RETRIES...${NC}"
                sleep 5
            else
                ERROR_COUNT=$((ERROR_COUNT + 1))
                log "${RED}✗ Upkeep failed after $MAX_RETRIES retries${NC}"
            fi
        fi
    done
}

# Function to stop keeper
stop_keeper() {
    log "\nStopping keeper service..."
    log "\n=== Statistics ==="
    log "Total Updates: $UPDATE_COUNT"
    log "Total Errors: $ERROR_COUNT"
    if [ $UPDATE_COUNT -gt 0 ]; then
        local success_rate=$(echo "scale=2; ($UPDATE_COUNT * 100) / ($UPDATE_COUNT + $ERROR_COUNT)" | bc)
        log "Success Rate: ${success_rate}%"
    fi
    exit 0
}

# Trap signals for graceful shutdown
trap stop_keeper SIGINT SIGTERM

# Main loop
main() {
    log "${GREEN}=== Price Feed Keeper Service ===${NC}"
    log "RPC URL: $RPC_URL"
    log "Keeper Address: $KEEPER_ADDRESS"
    log "Update Interval: $UPDATE_INTERVAL seconds"
    log ""
    log "Keeper service started. Press Ctrl+C to stop."
    log ""

    while true; do
        # Check if upkeep is needed
        if check_upkeep | grep -q "true"; then
            perform_upkeep
        else
            log "No updates needed"
        fi

        # Wait for next interval
        sleep "$UPDATE_INTERVAL"
    done
}

# Run main function
main