#!/usr/bin/env bash
# Phase 1.2: Check Event Logs for Existing Bridge Configuration
# This script checks for DestinationAdded events on ChainID 138 bridges

set -euo pipefail

# Load IP configuration
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
PROJECT_ROOT="$(cd "$SCRIPT_DIR/.." && pwd)"
source "${PROJECT_ROOT}/config/ip-addresses.conf" 2>/dev/null || true


SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
PROJECT_ROOT="$(cd "$SCRIPT_DIR/.." && pwd)"

# Colors
RED='\033[0;31m'
GREEN='\033[0;32m'
YELLOW='\033[1;33m'
BLUE='\033[0;34m'
CYAN='\033[0;36m'
NC='\033[0m'

log_info() { echo -e "${BLUE}[INFO]${NC} $1"; }
log_success() { echo -e "${GREEN}[✓]${NC} $1"; }
log_warn() { echo -e "${YELLOW}[⚠]${NC} $1"; }
log_error() { echo -e "${RED}[✗]${NC} $1"; }
log_detail() { echo -e "${CYAN}[DETAIL]${NC} $1"; }
log_section() { echo -e "\n${CYAN}━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━${NC}"; echo -e "${CYAN}$1${NC}"; echo -e "${CYAN}━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━${NC}\n"; }

# Configuration from resolution plan
CHAIN138_RPC="http://${RPC_CORE_1}:8545"
WETH9_BRIDGE="0x3304b747E565a97ec8AC220b0B6A1f6ffDB837e6"
WETH10_BRIDGE="0x8078A09637e47Fa5Ed34F626046Ea2094a5CDE5e"
MAINNET_SELECTOR="5009297550715157269"

log_section "Phase 1.2: Check Event Logs for Existing Configuration"

log_info "Configuration:"
log_info "  ChainID 138 RPC: $CHAIN138_RPC"
log_info "  WETH9 Bridge: $WETH9_BRIDGE"
log_info "  WETH10 Bridge: $WETH10_BRIDGE"
log_info "  Mainnet Chain Selector: $MAINNET_SELECTOR"
log_info ""

# Check if cast is available
if ! command -v cast &> /dev/null; then
    log_error "cast command not found. Please install foundry."
    exit 1
fi

# Test RPC connection
log_info "Testing RPC connection..."
CHAIN_ID=$(cast chain-id --rpc-url "$CHAIN138_RPC" 2>/dev/null || echo "")
if [ -z "$CHAIN_ID" ]; then
    log_error "Failed to connect to RPC endpoint: $CHAIN138_RPC"
    log_warn "Trying alternative RPC: http://${RPC_PUBLIC_1:-192.168.11.221}:8545"
    CHAIN138_RPC="http://${RPC_PUBLIC_1:-192.168.11.221}:8545"
    CHAIN_ID=$(cast chain-id --rpc-url "$CHAIN138_RPC" 2>/dev/null || echo "")
    if [ -z "$CHAIN_ID" ]; then
        log_error "Failed to connect to alternative RPC endpoint"
        exit 1
    fi
    log_info "Using alternative RPC: $CHAIN138_RPC"
fi
log_success "RPC connection successful (ChainID: $CHAIN_ID)"
log_info ""

# Get latest block number
log_info "Getting latest block number..."
LATEST_BLOCK=$(cast block-number --rpc-url "$CHAIN138_RPC" 2>/dev/null || echo "0")
log_info "Latest block: $LATEST_BLOCK"
log_info ""

# Function to check events for a bridge
check_bridge_events() {
    local BRIDGE_ADDRESS=$1
    local BRIDGE_NAME=$2
    
    log_section "Checking $BRIDGE_NAME Bridge Events"
    log_info "Bridge Address: $BRIDGE_ADDRESS"
    log_info "Searching for DestinationAdded events from block 0 to $LATEST_BLOCK..."
    log_info ""

    # Get events
    # Event signature: DestinationAdded(uint64,address)
    EVENT_SIG="0x8be0079c531659141344cd1fd0a4f28419497f9722a3daafe3b4186f6b6457e0"  # keccak256("DestinationAdded(uint64,address)") first 4 bytes
    # Note: cast logs requires the full event signature with indexed params
    
    log_info "Querying DestinationAdded events..."
    
    # Try to get events using cast logs
    # DestinationAdded(uint64 indexed chainSelector, address indexed receiverBridge)
    EVENTS=$(cast logs \
        --from-block 0 \
        --to-block "$LATEST_BLOCK" \
        --address "$BRIDGE_ADDRESS" \
        "DestinationAdded(uint64,address)" \
        --rpc-url "$CHAIN138_RPC" 2>&1 || echo "")
    
    if echo "$EVENTS" | grep -qE "error|Error|ERROR"; then
        log_warn "Error querying events (this is expected if function doesn't exist)"
        log_detail "Error output: $EVENTS"
        log_info ""
        return 1
    fi
    
    if [ -z "$EVENTS" ] || [ "$EVENTS" = "[]" ]; then
        log_warn "No DestinationAdded events found for $BRIDGE_NAME bridge"
        log_info "This means destinations may not be configured via events"
        log_info ""
        return 1
    fi
    
    # Parse events if found
    log_success "Events found for $BRIDGE_NAME bridge:"
    echo "$EVENTS" | jq -r '.[] | "Block: \(.blockNumber) | Chain Selector: \(.topics[1]) | Receiver Bridge: \(.topics[2])"' 2>/dev/null || echo "$EVENTS"
    log_info ""
    
    # Check if Mainnet selector is in events
    if echo "$EVENTS" | grep -qi "$MAINNET_SELECTOR"; then
        log_success "✓ Mainnet destination found in events for $BRIDGE_NAME bridge!"
        return 0
    else
        log_warn "Mainnet destination not found in events for $BRIDGE_NAME bridge"
        return 1
    fi
}

# Check both bridges
WETH9_EVENTS_FOUND=0
WETH10_EVENTS_FOUND=0

check_bridge_events "$WETH9_BRIDGE" "WETH9" && WETH9_EVENTS_FOUND=1 || WETH9_EVENTS_FOUND=0
check_bridge_events "$WETH10_BRIDGE" "WETH10" && WETH10_EVENTS_FOUND=1 || WETH10_EVENTS_FOUND=0

# Summary
log_section "Phase 1.2 Summary - Event Log Analysis"

if [ "$WETH9_EVENTS_FOUND" -eq 1 ] && [ "$WETH10_EVENTS_FOUND" -eq 1 ]; then
    log_success "✓ Both bridges have DestinationAdded events with Mainnet selector"
    log_success "Conclusion: Destinations may already be configured!"
    log_info ""
    log_info "Next Step: Proceed to Phase 1.1 to test actual bridge transfer"
    echo "EVENT_STATUS=CONFIGURED" > "$PROJECT_ROOT/.phase1-event-status"
elif [ "$WETH9_EVENTS_FOUND" -eq 1 ] || [ "$WETH10_EVENTS_FOUND" -eq 1 ]; then
    log_warn "⚠ Partial configuration detected"
    if [ "$WETH9_EVENTS_FOUND" -eq 1 ]; then
        log_info "  - WETH9 bridge: Events found"
    else
        log_warn "  - WETH9 bridge: No events"
    fi
    if [ "$WETH10_EVENTS_FOUND" -eq 1 ]; then
        log_info "  - WETH10 bridge: Events found"
    else
        log_warn "  - WETH10 bridge: No events"
    fi
    echo "EVENT_STATUS=PARTIAL" > "$PROJECT_ROOT/.phase1-event-status"
else
    log_warn "⚠ No DestinationAdded events found for either bridge"
    log_info "This suggests:"
    log_info "  1. Destinations were not configured via events, OR"
    log_info "  2. Events were emitted before current block range, OR"
    log_info "  3. Contract uses different event signature"
    log_info ""
    log_info "Next Step: Proceed to Phase 1.1 to test if bridge works anyway"
    echo "EVENT_STATUS=NOT_FOUND" > "$PROJECT_ROOT/.phase1-event-status"
fi

log_info ""
log_success "Phase 1.2 Complete - Event log analysis saved to .phase1-event-status"