#!/usr/bin/env bash
set -euo pipefail

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

CALLER_FACTORY="${FACTORY:-}"
CALLER_RPC_URL="${RPC_URL:-}"
CALLER_TOKEN_A="${TOKEN_A:-}"
CALLER_TOKEN_B="${TOKEN_B:-}"
CALLER_FEE="${FEE:-}"
CALLER_EXECUTE="${EXECUTE:-}"
CALLER_EXPECTED_CHAIN_ID="${EXPECTED_CHAIN_ID:-}"
CALLER_SQRT_PRICE_X96="${SQRT_PRICE_X96:-}"

if [[ -f "$SCRIPT_DIR/../lib/deployment/dotenv.sh" ]]; then
  # shellcheck disable=SC1090
  source "$SCRIPT_DIR/../lib/deployment/dotenv.sh"
  load_deployment_env --repo-root "$REPO_ROOT"
fi

FACTORY="${CALLER_FACTORY:-${FACTORY:-${UNISWAP_V3_FACTORY:-}}}"
RPC_URL="${CALLER_RPC_URL:-${ETHEREUM_MAINNET_RPC:-${ETH_MAINNET_RPC_URL:-${RPC_URL:-}}}}"
TOKEN_A="${CALLER_TOKEN_A:-${TOKEN_A:-}}"
TOKEN_B="${CALLER_TOKEN_B:-${TOKEN_B:-}}"
FEE="${CALLER_FEE:-${FEE:-500}}"
EXECUTE="${CALLER_EXECUTE:-${EXECUTE:-0}}"
EXPECTED_CHAIN_ID="${CALLER_EXPECTED_CHAIN_ID:-${EXPECTED_CHAIN_ID:-}}"
SQRT_PRICE_X96="${CALLER_SQRT_PRICE_X96:-${SQRT_PRICE_X96:-79228162514264337593543950336}}"
PRIVATE_KEY="${PRIVATE_KEY:-}"

if [[ -z "$FACTORY" || -z "$RPC_URL" || -z "$TOKEN_A" || -z "$TOKEN_B" ]]; then
  echo "Required: FACTORY RPC_URL TOKEN_A TOKEN_B" >&2
  exit 1
fi

if [[ -n "$EXPECTED_CHAIN_ID" ]]; then
  chain_id="$(cast chain-id --rpc-url "$RPC_URL")"
  if [[ "$chain_id" != "$EXPECTED_CHAIN_ID" ]]; then
    echo "Refusing to continue: RPC chain-id is $chain_id, expected $EXPECTED_CHAIN_ID" >&2
    exit 1
  fi
fi

factory_code="$(cast code "$FACTORY" --rpc-url "$RPC_URL" 2>/dev/null || true)"
factory_code="${factory_code//$'\n'/}"
if [[ -z "$factory_code" || "$factory_code" == "0x" ]]; then
  echo "Refusing to continue: FACTORY has no contract code at $FACTORY on the selected RPC" >&2
  exit 1
fi

PROXMOX_ROOT="$(cd "$REPO_ROOT/.." && pwd)"
if [[ -f "$PROXMOX_ROOT/scripts/lib/mainnet_gas_api.sh" ]]; then
  # shellcheck source=/dev/null
  source "$PROXMOX_ROOT/scripts/lib/mainnet_gas_api.sh"
  export_mesh_mainnet_gas
fi

get_pool() {
  cast call "$FACTORY" \
    "getPool(address,address,uint24)(address)" \
    "$TOKEN_A" "$TOKEN_B" "$FEE" \
    --rpc-url "$RPC_URL"
}

cast_send_wait() {
  local to="$1"
  local sig="$2"
  shift 2
  local -a extra=()
  local from nonce
  from="$(cast wallet address --private-key "$PRIVATE_KEY")"
  nonce="$(cast nonce "$from" --rpc-url "$RPC_URL" --block pending)"
  extra+=(--nonce "$nonce")
  if [[ "${CAST_USE_LEGACY:-1}" == "1" ]]; then
    extra+=(--legacy)
    if [[ -n "${CAST_GAS_PRICE:-}" ]]; then
      extra+=(--gas-price "$CAST_GAS_PRICE")
    fi
  else
    if [[ -n "${CAST_MAX_FEE_PER_GAS:-}" ]]; then
      extra+=(--max-fee-per-gas "$CAST_MAX_FEE_PER_GAS")
    fi
    if [[ -n "${CAST_MAX_PRIORITY_FEE_PER_GAS:-}" ]]; then
      extra+=(--priority-gas-price "$CAST_MAX_PRIORITY_FEE_PER_GAS")
    fi
  fi
  local out tx
  out="$(cast send "$to" "$sig" "$@" \
    --rpc-url "$RPC_URL" \
    --private-key "$PRIVATE_KEY" \
    --timeout "${CAST_SEND_TIMEOUT:-1800}" \
    "${extra[@]}")"
  tx="$(printf '%s\n' "$out" | grep -oE '0x[a-fA-F0-9]{64}' | head -1)"
  [[ -n "$tx" ]] || { echo "cast send did not return tx hash: $out" >&2; return 1; }
  echo "  tx submitted: $tx (nonce $nonce)"
  wait_for_mainnet_receipt "$tx" "$RPC_URL" || return 1
}

pool="$(get_pool)"
pool="${pool//$'\n'/}"

if [[ -z "$pool" || "$pool" == "0x0000000000000000000000000000000000000000" ]]; then
  echo "Pool does not exist yet for $TOKEN_A / $TOKEN_B fee $FEE"
  if [[ "$EXECUTE" != "1" ]]; then
    echo "Dry run: set EXECUTE=1 to call createPool on $FACTORY"
    exit 0
  fi
  if [[ -z "$PRIVATE_KEY" ]]; then
    echo "PRIVATE_KEY is required when EXECUTE=1" >&2
    exit 1
  fi
  if ! cast_send_wait "$FACTORY" \
    "createPool(address,address,uint24)" \
    "$TOKEN_A" "$TOKEN_B" "$FEE"; then
    echo "  WARN: createPool receipt wait failed; re-checking getPool..." >&2
  fi
  pool="$(get_pool)"
  pool="${pool//$'\n'/}"
fi

if [[ ! "$pool" =~ ^0x[0-9a-fA-F]{40}$ || "$pool" == "0x0000000000000000000000000000000000000000" ]]; then
  echo "Refusing to initialize: factory getPool returned invalid pool address: '$pool'" >&2
  exit 1
fi

echo "Pool address: $pool"

PROXMOX_MESH_OPS="$(cd "$REPO_ROOT/.." && pwd)/scripts/lib/cw_mesh_pool_ops.sh"
if [[ -f "$PROXMOX_MESH_OPS" ]]; then
  # shellcheck source=/dev/null
  source "$PROXMOX_MESH_OPS"
  export RPC="$RPC_URL"
fi

needs_init=1
if [[ -f "$PROXMOX_MESH_OPS" ]] && mesh_pool_initialized "$pool" "$RPC_URL"; then
  needs_init=0
fi

slot0="$(cast call "$pool" "slot0()((uint160,int24,uint16,uint16,uint16,uint8,bool))" --rpc-url "$RPC_URL" 2>/dev/null || true)"
if [[ "$needs_init" -eq 0 ]]; then
  echo "Pool already initialized: $slot0"
  exit 0
fi

echo "Pool is not initialized"
if [[ "$EXECUTE" != "1" ]]; then
  echo "Dry run: set EXECUTE=1 to initialize at sqrtPriceX96=$SQRT_PRICE_X96"
  exit 0
fi
if [[ -z "$PRIVATE_KEY" ]]; then
  echo "PRIVATE_KEY is required when EXECUTE=1" >&2
  exit 1
fi
if cast_send_wait "$pool" \
  "initialize(uint160)" \
  "$SQRT_PRICE_X96"; then
  echo "Initialized pool at sqrtPriceX96=$SQRT_PRICE_X96"
elif [[ -f "$PROXMOX_MESH_OPS" ]] && mesh_pool_initialized "$pool" "$RPC_URL"; then
  echo "Initialize receipt wait timed out but pool is initialized on-chain."
else
  exit 1
fi