# =============================================================================
# Service Containers - Database and Development Services
# PostgreSQL, Redis, Qdrant, Docker Registry
# =============================================================================

# =============================================================================
# PostgreSQL Database Service
# =============================================================================

# PostgreSQL data volume for persistence
resource "docker_volume" "postgres_data" {
  count = data.coder_parameter.enable_services.value ? 1 : 0
  name  = "postgres-data-${local.workspace_id}"

  labels {
    label = "coder.service"
    value = "postgres"
  }
  labels {
    label = "coder.workspace_id"
    value = local.workspace_id
  }
}

# PostgreSQL container
resource "docker_container" "postgres" {
  count = data.coder_parameter.enable_services.value ? 1 : 0
  image = "postgres:${var.postgres_version}-alpine"
  name  = "postgres-${local.workspace_id}"

  # PostgreSQL configuration
  env = [
    "POSTGRES_DB=postgres",
    "POSTGRES_USER=postgres",
    "POSTGRES_PASSWORD=${var.postgres_password}",
    "POSTGRES_INITDB_ARGS=--auth-local=trust --auth-host=md5",
    "POSTGRES_SHARED_PRELOAD_LIBRARIES=pg_stat_statements",
    "POSTGRES_MAX_CONNECTIONS=${var.postgres_max_connections}"
  ]

  # Network configuration
  networks_advanced {
    name = docker_network.workspace.name
  }

  # Data persistence
  volumes {
    volume_name    = docker_volume.postgres_data[0].name
    container_path = "/var/lib/postgresql/data"
  }

  # Health check
  healthcheck {
    test     = ["CMD-SHELL", "pg_isready -U postgres"]
    interval = "15s"
    timeout  = "5s"
    retries  = 5
  }

  restart = "unless-stopped"

  labels {
    label = "coder.service"
    value = "postgres"
  }
  labels {
    label = "coder.workspace_id"
    value = local.workspace_id
  }
}

# =============================================================================
# Redis Cache Service
# =============================================================================

# Redis data volume for persistence
resource "docker_volume" "redis_data" {
  count = data.coder_parameter.enable_services.value ? 1 : 0
  name  = "redis-data-${local.workspace_id}"

  labels {
    label = "coder.service"
    value = "redis"
  }
  labels {
    label = "coder.workspace_id"
    value = local.workspace_id
  }
}

# Redis container
resource "docker_container" "redis" {
  count = data.coder_parameter.enable_services.value ? 1 : 0
  image = "redis:${var.redis_version}-alpine"
  name  = "redis-${local.workspace_id}"

  # Redis configuration with authentication
  command = [
    "redis-server",
    "--requirepass", var.redis_password,
    "--appendonly", "yes",
    "--appendfsync", "everysec",
    "--maxmemory", var.redis_max_memory,
    "--maxmemory-policy", "allkeys-lru"
  ]

  networks_advanced {
    name = docker_network.workspace.name
  }

  # Data persistence
  volumes {
    volume_name    = docker_volume.redis_data[0].name
    container_path = "/data"
  }

  # Health check
  healthcheck {
    test     = ["CMD", "redis-cli", "--raw", "incr", "ping"]
    interval = "15s"
    timeout  = "3s"
    retries  = 5
  }

  restart = "unless-stopped"

  labels {
    label = "coder.service"
    value = "redis"
  }
  labels {
    label = "coder.workspace_id"
    value = local.workspace_id
  }
}

# =============================================================================
# Qdrant Vector Database Service
# =============================================================================

# Qdrant data volume for persistence
resource "docker_volume" "qdrant_data" {
  count = data.coder_parameter.enable_services.value ? 1 : 0
  name  = "qdrant-data-${local.workspace_id}"

  labels {
    label = "coder.service"
    value = "qdrant"
  }
  labels {
    label = "coder.workspace_id"
    value = local.workspace_id
  }
}

# Qdrant container
resource "docker_container" "qdrant" {
  count = data.coder_parameter.enable_services.value ? 1 : 0
  image = "qdrant/qdrant:${var.qdrant_version}"
  name  = "qdrant-${local.workspace_id}"

  # Qdrant configuration
  env = [
    "QDRANT__SERVICE__HTTP_PORT=6333",
    "QDRANT__SERVICE__GRPC_PORT=6334",
    "QDRANT__LOG_LEVEL=INFO"
  ]

  networks_advanced {
    name = docker_network.workspace.name
  }

  # Ports accessible within workspace network - no host exposure needed

  # Data persistence
  volumes {
    volume_name    = docker_volume.qdrant_data[0].name
    container_path = "/qdrant/storage"
  }

  # Health check
  healthcheck {
    test     = ["CMD", "curl", "-f", "http://localhost:6333/health"]
    interval = "20s"
    timeout  = "5s"
    retries  = 5
  }

  restart = "unless-stopped"

  labels {
    label = "coder.service"
    value = "qdrant"
  }
  labels {
    label = "coder.workspace_id"
    value = local.workspace_id
  }
}


# =============================================================================
# pgAdmin for PostgreSQL Management (Optional)
# =============================================================================

# pgAdmin data volume
resource "docker_volume" "pgadmin_data" {
  count = data.coder_parameter.enable_services.value && var.enable_pgadmin ? 1 : 0
  name  = "pgadmin-data-${local.workspace_id}"

  labels {
    label = "coder.service"
    value = "pgadmin"
  }
  labels {
    label = "coder.workspace_id"
    value = local.workspace_id
  }
}

# pgAdmin container
resource "docker_container" "pgadmin" {
  count = data.coder_parameter.enable_services.value && var.enable_pgadmin ? 1 : 0
  image = "dpage/pgadmin4:latest"
  name  = "pgadmin-${local.workspace_id}"

  # pgAdmin configuration
  env = [
    "PGADMIN_DEFAULT_EMAIL=${var.pgadmin_email}",
    "PGADMIN_DEFAULT_PASSWORD=${var.pgadmin_password}",
    "PGADMIN_CONFIG_SERVER_MODE=False",
    "PGADMIN_CONFIG_MASTER_PASSWORD_REQUIRED=False",
    "PGADMIN_LISTEN_PORT=80"
  ]

  networks_advanced {
    name = docker_network.workspace.name
  }

  # Port accessible within workspace network - no host exposure needed

  # Data persistence
  volumes {
    volume_name    = docker_volume.pgadmin_data[0].name
    container_path = "/var/lib/pgadmin"
  }

  restart = "unless-stopped"

  labels {
    label = "coder.service"
    value = "pgadmin"
  }
  labels {
    label = "coder.workspace_id"
    value = local.workspace_id
  }
}

# =============================================================================
# Jupyter Lab Service (Optional for Data Science)
# =============================================================================

# Jupyter data volume
resource "docker_volume" "jupyter_data" {
  count = var.enable_jupyter ? 1 : 0
  name  = "jupyter-data-${local.workspace_id}"

  labels {
    label = "coder.service"
    value = "jupyter"
  }
  labels {
    label = "coder.workspace_id"
    value = local.workspace_id
  }
}

# Jupyter Lab container
resource "docker_container" "jupyter" {
  count = var.enable_jupyter ? 1 : 0
  image = "jupyter/scipy-notebook:latest"
  name  = "jupyter-${local.workspace_id}"

  # Jupyter configuration
  env = [
    "JUPYTER_ENABLE_LAB=yes",
    "JUPYTER_TOKEN=",
    "RESTARTABLE=yes",
    "JUPYTER_PORT=8888"
  ]

  networks_advanced {
    name = docker_network.workspace.name
  }

  # Port accessible within workspace network - no host exposure needed

  # Data persistence
  volumes {
    volume_name    = docker_volume.jupyter_data[0].name
    container_path = "/home/jovyan/work"
  }

  # Share workspace volume
  volumes {
    volume_name    = docker_volume.workspaces.name
    container_path = "/home/jovyan/workspaces"
    read_only      = false
  }

  restart = "unless-stopped"

  labels {
    label = "coder.service"
    value = "jupyter"
  }
  labels {
    label = "coder.workspace_id"
    value = local.workspace_id
  }
}