// node table contains information about storagenodes.
model node (
    key id

    index (
        name node_last_ip
        fields last_net
    )

    index (
        name nodes_dis_unk_off_exit_fin_last_success_index
        fields disqualified unknown_audit_suspended offline_suspended exit_finished_at last_contact_success
    )

    index (
        // N.B. the index doesn't have a name which clarifies its purpose because
        // it was created in the production DBs as it's before being added here
        name nodes_type_last_cont_success_free_disk_ma_mi_patch_vetted_partial_index
        fields type last_contact_success free_disk  major minor patch vetted_at
        where node.disqualified = null
        where node.unknown_audit_suspended = null
        where node.exit_initiated_at = null
        where node.release = true
        where node.last_net != ""
    )

    index (
        // N.B. the index doesn't have a name which clarifies its purpose because
        // it was created in the production DBs as it's before being added here
        name nodes_dis_unk_aud_exit_init_rel_type_last_cont_success_stored_index
        fields disqualified  unknown_audit_suspended  exit_initiated_at  release  type  last_contact_success
        where node.disqualified = null
        where node.unknown_audit_suspended = null
        where node.exit_initiated_at = null
        where node.release = true
    )

    // id is the storj.NodeID of the storagenode.
    field id              blob
    // address is how to contact the node, this can be a hostname or IP and it contains the port
    field address         text  ( updatable, default "" ) // TODO: use compressed format
    // last_net is the /24 of IPv4 or /64 subnet of IPv4. e.g for an IP of 1.2.3.4 it is going to be 1.2.3.
    field last_net        text  ( updatable )
    // last_ip_port is the IP and port of the storagenode, as it was last resolved.
    // This is used as a shortcut to avoid overloading DNS.
    // Connections will fall back to using 'address' if a connection here fails.
    field last_ip_port    text  ( updatable, nullable )
    // country_code is the ISO 3166 2-letter country code indicating where the node is located, according to geoip lookup.
    // It is updated anytime we update last_ip_port.
    field country_code    text  ( updatable, nullable )
    // protocol refers to pb.NodeTransport. TCP+TLS = 0, QUIC+RPC = 1, TCP+NOISE+RPC = 2.
    // This field seems unused at the moment.
    field protocol        int   ( updatable, default 0 )
    // type refers to pb.NodeType. It is deprecated, because the table only contains storage nodes.
    field type            int   ( updatable, default 0 )
    // email is the storage node operators contact email.
    field email           text  ( updatable )
    // wallet is the text version of the Ethereum (or other) wallet address.
    field wallet          text  ( updatable )
    // wallet_features is the comma delimited list of wallet features.
    field wallet_features text  ( updatable, default "" )
    // free_disk is the amount of free space that the storagenode has reported.
    field free_disk       int64 ( updatable, default -1 )
    // piece_count is an estimate on the number of pieces the storagenode stores.
    field piece_count     int64 ( autoinsert, updatable, default 0 )

    // major is the version major release.
    field major             int64 ( updatable, default 0 )
    // minor is the version minor release.
    field minor             int64 ( updatable, default 0 )
    // patch is the version patch release.
    field patch             int64 ( updatable, default 0 )
    // hash is the hash of the release.
    field hash              text ( updatable, default "" )
    // timestamp is the timestamp the release was built.
    field timestamp         timestamp ( updatable, default "0001-01-01 00:00:00+00" )
    // release indicates whether the storagenode is running a release version.
    field release           bool ( updatable, default false )

    // latency_90 is the 90 percentile estimate of latency.
    // This column is unused.
    field latency_90           int64   ( updatable, default 0 )
    // vetted_at is the time the storagenode gained sufficient reputation to be trusted with more data.
    field vetted_at            timestamp ( updatable, nullable )

    // created_at is the time the storagenode first made a successful contact.
    field created_at           timestamp ( autoinsert, default current_timestamp )
    // updated_at is the time the details have been last updated.
    field updated_at           timestamp ( autoinsert, autoupdate, default current_timestamp )
    // last_contact_success is the most recent time the storagenode was successfully contacted.
    field last_contact_success timestamp ( updatable, default "epoch" )
    // last_contact_failure is the most recent time the storagenode checked in, but the satellite wasn't able to ping it back.
    field last_contact_failure timestamp ( updatable, default "epoch" )

    // disqualified is set when the node fails too many audits or is offline for too long.
    // Reputation table has a cached value of this field.
    field disqualified            timestamp ( updatable, nullable )
    // disqualification_reason contains information about why the node was disqualified.
    // This corresponds to overlay.DisqualificationReason.
    // 0=unknown, 1=audit failures, 2=suspended for too long, 3=offline for too long.
    // Reputation table has a cached value of this field.
    field disqualification_reason int       ( updatable, nullable )
    // unknown_audit_suspended is set when the node is placed under inspection.
    // This happens when it has too many unknown-error audits.
    field unknown_audit_suspended timestamp ( updatable, nullable )
    // offline_suspended is set when the node is offline for too many audits.
    field offline_suspended timestamp ( updatable, nullable )
    // under_review is set when the node is marked for offline, this marks the node for review
    // so it can be checked later.
    field under_review timestamp ( updatable, nullable )

    // exit_initiated_at indicates whether and when the storagenode has started an graceful exit.
    field exit_initiated_at         timestamp ( updatable, nullable )
    // exit_loop_completed_at indicates when the satellite has collected all the pieces that need to be transferred.
    field exit_loop_completed_at    timestamp ( updatable, nullable )
    // exit_finished_at indicates when the storagenode finished the graceful exit.
    field exit_finished_at          timestamp ( updatable, nullable )
    // exit_success is whether the graceful exit ended successfully.
    field exit_success              bool ( updatable, default false )

    // contained indicates when and whether the storagenode has been placed into containment mode.
    field contained                 timestamp ( updatable, nullable )

    // last_offline_email indicates when the last offline email was sent to the storagenode operator.
    field last_offline_email         timestamp ( updatable, nullable )
    // last_software_update_email indicates when the last software update email was sent to the storagenode operator.
    field last_software_update_email timestamp ( updatable, nullable )

    // noise_proto is the noise protocol version that the storagenode has implemented.
    field noise_proto int ( updatable, nullable )
    // noise_public_key is the last known public key for the storagenode.
    field noise_public_key blob ( updatable, nullable )

    // debounce_limit is the limit of the number of identical messages this
    // node can defend against. this is not the limit of messages, just the
    // limit of how many of the same message can be debounced.
    field debounce_limit int ( updatable, default 0 )

    // features is a bitmask of pb.NodeAddress_Feature values.
    field features int ( updatable, default 0 )
)

update node ( where node.id = ? )
update node (
    where node.id = ?
    noreturn
)

update node (
    where node.id = ?
    where node.disqualified = null
    where node.exit_finished_at = null
    noreturn
)

// "Get" query; fails if node not found
read one (
    select node
    where  node.id = ?
)

read all (
    select node.id
)

read paged (
    select node
)

read all (
    select node.id node.piece_count
    where node.piece_count != 0
)

// node_api_version is a table for storing the supported API.
// This information is updated during order settlement.
model node_api_version (
    key id

    // id is the storj.NodeID of the storagenode.
    field id          blob
    // api_version refers to the satellite/nodeapiversion.Version value.
    field api_version int  ( updatable )

    // created_at is the time the version was first added.
    field created_at timestamp ( autoinsert )
    // updated_at is the time the version was last updated.
    field updated_at timestamp ( autoinsert, autoupdate )
)

create node_api_version (
    noreturn
    replace
)

read has (
    select node_api_version
    where node_api_version.id          =  ?
    where node_api_version.api_version >= ?
)

update node_api_version (
    where node_api_version.id          = ?
    where node_api_version.api_version < ?
    noreturn
)

// node_event table contains information that the storagenode should be updated about.
// This information is collected to avoid sending too many messages to node operators.
model node_event (
    key id

    index (
        name node_events_email_event_created_at_index
        fields email event created_at
        where node_event.email_sent = null
    )

    // id is a UUID for this event.
    field id             blob
    // emails is the storagenode operators contact address.
    field email          text
    // node_id is the storagenode storj.NodeID.
    field node_id        blob
    // event is the event kind, which refers to satellite/nodeevents.Type.
    field event          int
    // created_at is when this event was added.
    field created_at     timestamp ( default current_timestamp )
    // last_attempted is when nodeevents chore last tried to send the email.
    field last_attempted timestamp ( nullable, updatable )
    // email_sent when the email sending succeeded.
    field email_sent     timestamp ( nullable, updatable )
)

create node_event()

read one (
    select node_event
    where node_event.id = ?
)

read first (
    select node_event
    where node_event.email = ?
    where node_event.event = ?
    orderby desc node_event.created_at
)

delete node_event ( where node_event.created_at < ? )