# Bootstrap local Z Chain (chainId 900002) with Hyperledger Besu via Docker.
$ErrorActionPreference = "Stop"

$Root = (Resolve-Path (Join-Path $PSScriptRoot "..\..")).Path
$NetworkDir = if ($env:Z_CHAIN_NETWORK_DIR) { $env:Z_CHAIN_NETWORK_DIR } else { Join-Path $Root "logs\z-chain-network" }
$GenesisConfig = Join-Path $Root "config\z-chain-network-config.json"
$RpcPort = if ($env:Z_CHAIN_RPC_PORT) { $env:Z_CHAIN_RPC_PORT } else { "8546" }
$ContainerName = if ($env:Z_CHAIN_BESU_CONTAINER) { $env:Z_CHAIN_BESU_CONTAINER } else { "z-chain-besu" }

try {
  docker info 2>&1 | Out-Null
  if ($LASTEXITCODE -ne 0) { throw "Docker daemon not running" }
} catch {
  Write-Error "Docker is installed but not running. Start Docker Desktop or run: scripts\deployment\complete-z-chain.ps1 (Hardhat fallback)"
}

if (-not (Test-Path $GenesisConfig)) {
  Write-Error "Missing $GenesisConfig"
}

New-Item -ItemType Directory -Force -Path $NetworkDir | Out-Null

$GenesisOut = Join-Path $NetworkDir "genesis.json"
if (-not (Test-Path $GenesisOut)) {
  Write-Host "Generating IBFT2 network files in $NetworkDir ..."
  docker run --rm `
    -v "${Root}\config:/config:ro" `
    -v "${NetworkDir}:/network" `
    hyperledger/besu:latest `
    operator generate-blockchain-config `
      --config-file=/config/z-chain-network-config.json `
      --to=/network
}

$existing = docker ps -a --format "{{.Names}}" 2>$null | Where-Object { $_ -eq $ContainerName }
if ($existing) {
  Write-Host "Removing existing container $ContainerName ..."
  docker rm -f $ContainerName | Out-Null
}

$NodeKey = Join-Path $NetworkDir "keys\node1\key"
if (-not (Test-Path $NodeKey) -or -not (Test-Path $GenesisOut)) {
  Write-Error "Generated network files missing under $NetworkDir"
}

Write-Host "Starting Z Chain Besu on http://127.0.0.1:$RpcPort (chainId 900002) ..."
docker run -d `
  --name $ContainerName `
  -p "${RpcPort}:8545" `
  -v "${NetworkDir}:/network:ro" `
  hyperledger/besu:latest `
  --data-path=/tmp/besu `
  --genesis-file=/network/genesis.json `
  --node-private-key-file=/network/keys/node1/key `
  --rpc-http-enabled `
  --rpc-http-api=ETH,NET,WEB3,IBFT,ADMIN,DEBUG `
  --rpc-http-host=0.0.0.0 `
  --rpc-http-port=8545 `
  --rpc-http-cors-origins="*" `
  --host-allowlist="*" `
  --min-gas-price=0 | Out-Null

Write-Host ""
Write-Host "Z Chain local RPC: http://127.0.0.1:$RpcPort"
Write-Host 'Set env: CHAIN_900002_RPC_URL=http://127.0.0.1:' + $RpcPort
Write-Host 'Set env: VITE_RPC_URL_900002=http://127.0.0.1:' + $RpcPort