syntax = "proto3";

package v1;

option go_package = "github.com/garethgeorge/backrest/gen/go/v1";

import "google/protobuf/empty.proto";

message HubConfig {
  repeated InstanceInfo instances = 1 [json_name="instances"];
  
  message InstanceInfo {
    string id = 1 [json_name="id"];
    string secret = 2 [json_name="secret"]; // secret used to authenticate with the hub.
  }
}


// Config is the top level config object for restic UI.
message Config {
  // modification number, used for read-modify-write consistency in the UI. Incremented on every write.
  int32 modno = 1 [json_name="modno"];
  int32 version = 6 [json_name="version"]; // version of the config file format. Used to determine when to run migrations.

  // The instance name for the Backrest installation. 
  // This identifies backups created by this instance and is displayed in the UI. 
  string instance = 2 [json_name="instance"];

  repeated Repo repos = 3 [json_name="repos"];
  repeated Plan plans = 4 [json_name="plans"];
  Auth auth = 5 [json_name="auth"];
}

message Repo {
  string id = 1 [json_name="id"]; // unique but human readable ID for this repo.
  string uri = 2 [json_name="uri"]; // restic repo URI
  string password = 3 [json_name="password"]; // plaintext password
  repeated string env = 4 [json_name="env"]; // extra environment variables to set for restic.
  repeated string flags = 5 [json_name="flags"]; // extra flags set on the restic command.
  PrunePolicy prune_policy = 6 [json_name="prunePolicy"]; // policy for when to run prune.
  CheckPolicy check_policy = 9 [json_name="checkPolicy"]; // policy for when to run check.
  repeated Hook hooks = 7 [json_name="hooks"]; // hooks to run on events for this repo.
  bool auto_unlock = 8 [json_name="autoUnlock"]; // automatically unlock the repo when needed.
}

message Plan {
  string id = 1 [json_name="id"]; // unique but human readable ID for this plan.
  string repo = 2 [json_name="repo"]; // ID of the repo to use.
  bool disabled = 11 [json_name="disabled", deprecated=true]; // disable the plan.
  repeated string paths = 4 [json_name="paths"]; // paths to include in the backup.
  repeated string excludes = 5 [json_name="excludes"]; // glob patterns to exclude.
  repeated string iexcludes = 9 [json_name="iexcludes"]; // case insensitive glob patterns to exclude.
  string cron = 6 [json_name="cron", deprecated=true]; // cron expression describing the backup schedule.
  Schedule schedule = 12 [json_name="schedule"]; // schedule for the backup.
  RetentionPolicy retention = 7 [json_name="retention"]; // retention policy for snapshots.
  repeated Hook hooks = 8 [json_name="hooks"]; // hooks to run on events for this plan.
  repeated string backup_flags = 10 [json_name="backup_flags"]; // extra flags to set when running a backup command.
}

message RetentionPolicy {
  string max_unused_limit = 1 [json_name="maxUnusedLimit", deprecated = true]; 

  int32 keep_last_n = 2 [json_name="keepLastN", deprecated = true];
  int32 keep_hourly = 3 [json_name="keepHourly", deprecated = true];
  int32 keep_daily = 4 [json_name="keepDaily", deprecated = true];
  int32 keep_weekly = 5 [json_name="keepWeekly", deprecated = true];
  int32 keep_monthly = 6 [json_name="keepMonthly", deprecated = true];
  int32 keep_yearly = 7 [json_name="keepYearly", deprecated = true];
  string keep_within_duration = 8 [json_name="keepWithinDuration", deprecated = true]; // keep snapshots within a duration e.g. 1y2m3d4h5m6s

  oneof policy {
    int32 policy_keep_last_n = 10 [json_name="policyKeepLastN"];
    TimeBucketedCounts policy_time_bucketed = 11 [json_name="policyTimeBucketed"];
    bool policy_keep_all = 12 [json_name="policyKeepAll"];
  }

  message TimeBucketedCounts {
    int32 hourly = 1 [json_name="hourly"]; // keep the last n hourly snapshots.
    int32 daily = 2 [json_name="daily"]; // keep the last n daily snapshots.
    int32 weekly = 3 [json_name="weekly"]; // keep the last n weekly snapshots.
    int32 monthly = 4 [json_name="monthly"]; // keep the last n monthly snapshots.
    int32 yearly = 5 [json_name="yearly"];  // keep the last n yearly snapshots.
  }
}

message PrunePolicy {
  int32 max_frequency_days = 1 [json_name="maxFrequencyDays", deprecated = true]; // max frequency of prune runs in days.
  Schedule schedule = 2 [json_name="schedule"];
  int32 max_unused_bytes = 3 [json_name="maxUnusedBytes"]; // max unused bytes before running prune.
  int32 max_unused_percent = 4 [json_name="maxUnusedPercent"]; // max unused percent before running prune.
}

message CheckPolicy {
  Schedule schedule = 1 [json_name="schedule"];
  
  oneof mode {
    bool structure_only = 100 [json_name="structureOnly"]; // only check the structure of the repo. No pack data is read.
    int32 read_data_subset_percent = 101 [json_name="readDataSubsetPercent"]; // check a percentage of pack data.
  }
}

message Schedule {
  oneof schedule {
    bool disabled = 1 [json_name="disabled"]; // disable the schedule.
    string cron = 2 [json_name="cron"]; // cron expression describing the schedule.
    int32 maxFrequencyDays = 3 [json_name="maxFrequencyDays"]; // max frequency of runs in days.
    int32 maxFrequencyHours = 4 [json_name="maxFrequencyHours"]; // max frequency of runs in hours.
  }
}

message Hook {
  enum Condition {
    CONDITION_UNKNOWN = 0;
    CONDITION_ANY_ERROR = 1; // error running any operation.
    CONDITION_SNAPSHOT_START = 2; // backup started.
    CONDITION_SNAPSHOT_END = 3; // backup completed (success or fail).
    CONDITION_SNAPSHOT_ERROR = 4; // snapshot failed.
    CONDITION_SNAPSHOT_WARNING = 5; // snapshot completed with warnings.
    CONDITION_SNAPSHOT_SUCCESS = 6; // snapshot succeeded.
    
    // prune conditions
    CONDITION_PRUNE_START = 100; // prune started.
    CONDITION_PRUNE_ERROR = 101; // prune failed.
    CONDITION_PRUNE_SUCCESS = 102; // prune succeeded.

    // check conditions
    CONDITION_CHECK_START = 200; // check started.
    CONDITION_CHECK_ERROR = 201; // check failed.
    CONDITION_CHECK_SUCCESS = 202; // check succeeded.
  }

  enum OnError {
    ON_ERROR_IGNORE = 0;
    ON_ERROR_CANCEL = 1; // cancels the operation and skips subsequent hooks
    ON_ERROR_FATAL = 2; // fails the operation and subsequent hooks
  }

  repeated Condition conditions = 1 [json_name="conditions"];
  OnError on_error = 2 [json_name="onError"];

  oneof action {
    Command action_command = 100 [json_name="actionCommand"];
    Webhook action_webhook = 101 [json_name="actionWebhook"];
    Discord action_discord = 102 [json_name="actionDiscord"];
    Gotify action_gotify = 103 [json_name="actionGotify"];
    Slack action_slack = 104 [json_name="actionSlack"];
    Shoutrrr action_shoutrrr = 105 [json_name="actionShoutrrr"];
  }

  message Command {
    string command = 1 [json_name="command"];
  }

  message Webhook {
    string webhook_url = 1 [json_name="webhookUrl"];
    enum Method {
      UNKNOWN = 0;
      GET = 1;
      POST = 2;
    }
    Method method = 2 [json_name="method"];
    string template = 100 [json_name="template"];
  }

  message Discord {
    string webhook_url = 1 [json_name="webhookUrl"];
    string template = 2 [json_name="template"]; // template for the webhook payload.
  }

  message Gotify {
    string base_url = 1 [json_name="baseUrl"];
    string token = 3 [json_name="token"];
    string template = 100 [json_name="template"]; // template for the webhook payload.
    string title_template = 101 [json_name="titleTemplate"]; // template for the webhook title.
  }

  message Slack {
    string webhook_url = 1 [json_name="webhookUrl"];
    string template = 2 [json_name="template"]; // template for the webhook payload.
  }

  message Shoutrrr {
    string shoutrrr_url = 1 [json_name="shoutrrrUrl"];
    string template = 2 [json_name="template"];
  }
}

message Auth {
  bool disabled = 1 [json_name="disabled"]; // disable authentication.
  repeated User users = 2 [json_name="users"]; // users to allow access to the UI.
}

message User {
  string name = 1 [json_name="name"];
  oneof password {
    string password_bcrypt = 2 [json_name="passwordBcrypt"];
  }
}