@startuml

abstract class Base {
    // Timestamp mixin
    DateTime created_at
    DateTime updated_at

    // Soft Delete mixin
    DateTime deleted_at
    Integer deleted // default = 0
}

class Strategy {
    **Integer id** // primary_key
    String uuid // length = 36
    String name // length = 63, nullable = false
    String display_name // length = 63, nullable = false
    <i>Integer goal_id</i> // ForeignKey('goals.id'), nullable = false
}


class Goal {
    **Integer id** // primary_key
    String uuid // length = 36
    String name // length = 63, nullable = false
    String display_name // length = 63, nullable=False
}


class AuditTemplate {
    **Integer id** // primary_key
    String uuid // length = 36
    String name // length = 63, nullable = true
    String description // length = 255, nullable = true
    Integer host_aggregate // nullable = true
    <i>Integer goal_id</i> // ForeignKey('goals.id'), nullable = false
    <i>Integer strategy_id</i> // ForeignKey('strategies.id'), nullable = true
    JsonString extra
    String version // length = 15, nullable = true
}


class Audit {
    **Integer id** // primary_key
    String uuid // length = 36
    String type // length = 20
    String state // length = 20, nullable = true
    DateTime deadline // nullable = true
    <i>Integer audit_template_id</i> // ForeignKey('audit_templates.id') \
nullable = false
}


class Action {
    **Integer id** // primary_key
    String uuid // length = 36, nullable = false
    <i>Integer action_plan_id</i> // ForeignKey('action_plans.id'), nullable = false
    String action_type // length = 255, nullable = false
    JsonString input_parameters // nullable = true
    String state // length = 20, nullable = true
    String next // length = 36, nullable = true
}


class ActionPlan {
    **Integer id** // primary_key
    String uuid // length = 36
    Integer first_action_id //
    <i>Integer audit_id</i> // ForeignKey('audits.id'), nullable = true
    String state // length = 20, nullable = true
}

"Base" <|-- "Strategy"
"Base" <|-- "Goal"
"Base" <|-- "AuditTemplate"
"Base" <|-- "Audit"
"Base" <|-- "Action"
"Base" <|-- "ActionPlan"

 "Goal" <.. "Strategy" : Foreign Key
 "Goal" <.. "AuditTemplate" : Foreign Key
 "Strategy" <.. "AuditTemplate" : Foreign Key
 "AuditTemplate" <.. "Audit" : Foreign Key
 "ActionPlan" <.. "Action" : Foreign Key
 "Audit" <.. "ActionPlan" : Foreign Key

@enduml