import type {CloudProvider, FieldSchema, ServiceSchema, TableColumnSchema} from './types'

/** The Name tag EFS shows for a file system; AWS caps tag values at 256 characters. */
export const FILE_SYSTEM_NAME_PATTERN = '^[^\\x00-\\x1f]{1,256}$'
export const FILE_SYSTEM_PERFORMANCE_MODES = ['generalPurpose', 'maxIO'] as const
export const FILE_SYSTEM_THROUGHPUT_MODES = ['bursting', 'elastic'] as const
/** An access point's root: an absolute path of up to 100 characters. */
export const ACCESS_POINT_PATH_PATTERN = '^/[^\\x00]{0,99}$'
/** Lambda mounts file systems under /mnt only. */
export const LAMBDA_MOUNT_PATH_PATTERN = '^/mnt/[a-zA-Z0-9-_.]{1,160}$'

const fileSystemColumns: TableColumnSchema[] = [
    {name: 'name', label: 'Name'},
    {name: 'id', label: 'File system ID', path: 'metadata.fileSystemId'},
    {name: 'status', label: 'State', format: 'badge'},
    {name: 'mountTargets', label: 'Mount targets', path: 'metadata.numberOfMountTargets'},
    {name: 'performanceMode', label: 'Performance', path: 'metadata.performanceMode'},
    {name: 'encrypted', label: 'Encrypted', path: 'metadata.encrypted', format: 'boolean'},
    {name: 'createdAt', label: 'Created', format: 'datetime'},
]

const fileSystemFilters: FieldSchema[] = [{name: 'search', label: 'Search', type: 'text', required: false}]

export function awsFileSystemsSchema(): ServiceSchema {
    return {
        cloud: 'aws',
        service: 'filesystems',
        displayName: 'EFS file systems',
        fields: [
            {
                name: 'name',
                label: 'Name',
                type: 'text',
                required: false,
                description: 'Stored as the Name tag, as the AWS console does.',
                validation: {pattern: FILE_SYSTEM_NAME_PATTERN, message: 'Use up to 256 characters'},
            },
            {
                name: 'mountTargets',
                label: 'Mount targets',
                type: 'select',
                required: false,
                defaultValue: 'default',
                description: 'Lambda functions and ECS tasks reach a file system through a mount target in their subnet.',
                options: [
                    {label: 'One in each default subnet', value: 'default'},
                    {label: 'None for now', value: 'none'},
                ],
            },
            {
                name: 'performanceMode',
                label: 'Performance mode',
                type: 'select',
                required: false,
                defaultValue: 'generalPurpose',
                options: [
                    {label: 'General Purpose', value: 'generalPurpose'},
                    {label: 'Max I/O', value: 'maxIO'},
                ],
            },
            {
                name: 'throughputMode',
                label: 'Throughput mode',
                type: 'select',
                required: false,
                defaultValue: 'bursting',
                options: [
                    {label: 'Bursting', value: 'bursting'},
                    {label: 'Elastic', value: 'elastic'},
                ],
            },
            {
                name: 'encrypted',
                label: 'Encryption at rest',
                type: 'select',
                required: false,
                defaultValue: 'true',
                options: [
                    {label: 'Encrypted', value: 'true'},
                    {label: 'Not encrypted', value: 'false'},
                ],
            },
        ],
        actions: ['list', 'create', 'delete', 'inspect'],
        capabilities: {
            resourceActions: [
                {name: 'list', label: 'List file systems', enabled: true, status: 'available', runtimeRequired: true},
                {name: 'create', label: 'Create file system', enabled: true, status: 'available', runtimeRequired: true},
                {name: 'delete', label: 'Delete file system', enabled: true, status: 'available', runtimeRequired: true},
                {name: 'inspect', label: 'Inspect file system', enabled: true, status: 'available', runtimeRequired: true},
            ],
            fileSystemActions: [
                {name: 'createMountTarget', label: 'Add mount target', enabled: true, status: 'available', runtimeRequired: true},
                {name: 'deleteMountTarget', label: 'Remove mount target', enabled: true, status: 'available', runtimeRequired: true},
                {name: 'createAccessPoint', label: 'Create access point', enabled: true, status: 'available', runtimeRequired: true},
                {name: 'deleteAccessPoint', label: 'Delete access point', enabled: true, status: 'available', runtimeRequired: true},
                {name: 'attachFunction', label: 'Attach to a Lambda function', enabled: true, status: 'available', runtimeRequired: true},
                {name: 'detachFunction', label: 'Detach from a Lambda function', enabled: true, status: 'available', runtimeRequired: true},
            ],
        },
        filters: fileSystemFilters,
        columns: fileSystemColumns,
    }
}

export function fileSystemsSchemaFor(cloud: CloudProvider): ServiceSchema | null {
    return cloud === 'aws' ? awsFileSystemsSchema() : null
}