// DAARION Messaging + Agents + microDAO ERD
// Format: dbdiagram.io (DBML)
// Version: 1.0.0
// Date: 2025-11-24

// Use: https://dbdiagram.io/d
// Paste this content to visualize

Table users {
  id uuid [pk]
  external_id text [not null, unique, note: 'user:93']
  matrix_id text [note: '@alice:matrix.daarion.city']
  handle text [note: '@alice']
  created_at timestamptz [default: `now()`]
  
  indexes {
    external_id [unique]
    matrix_id
  }
}

Table microdaos {
  id uuid [pk]
  external_id text [not null, unique, note: 'microdao:7']
  name text [not null]
  owner_user_id uuid [not null, ref: > users.id]
  created_at timestamptz [default: `now()`]
  
  indexes {
    external_id [unique]
    owner_user_id
  }
}

Table microdao_members {
  id uuid [pk]
  microdao_id uuid [not null, ref: > microdaos.id]
  user_id uuid [not null, ref: > users.id]
  role text [not null, note: 'owner | admin | member | guest']
  created_at timestamptz [default: `now()`]
  
  indexes {
    (microdao_id, user_id) [unique]
  }
}

Table agent_blueprints {
  id uuid [pk]
  code text [not null, unique, note: 'sofia_prime, node_agent']
  description text
  model text [not null, note: 'gpt-4.1, deepseek-r1']
  capabilities jsonb [note: 'Tools, permissions, etc.']
  
  indexes {
    code [unique]
  }
}

Table agents {
  id uuid [pk]
  external_id text [not null, unique, note: 'agent:sofia']
  name text [not null]
  kind text [not null, note: 'system | assistant | node | quest']
  microdao_id uuid [ref: > microdaos.id, note: 'Optional scope']
  owner_user_id uuid [ref: > users.id, note: 'Optional owner']
  matrix_id text [note: '@sofia:matrix.daarion.city']
  blueprint_id uuid [not null, ref: > agent_blueprints.id]
  created_at timestamptz [default: `now()`]
  
  indexes {
    external_id [unique]
    matrix_id
    microdao_id
    kind
  }
}

Table channels {
  id uuid [pk]
  slug text [not null, note: 'Unique within microdao']
  name text [not null]
  microdao_id uuid [not null, ref: > microdaos.id]
  team_id uuid [note: 'Optional team scope']
  matrix_room_id text [not null, unique, note: '!room:matrix.daarion.city']
  visibility text [not null, note: 'public | private | microdao']
  created_by_user_id uuid [ref: > users.id]
  created_by_agent_id uuid [ref: > agents.id]
  created_at timestamptz [default: `now()`]
  
  indexes {
    (slug, microdao_id) [unique]
    matrix_room_id [unique]
    microdao_id
  }
}

Table channel_members {
  id uuid [pk]
  channel_id uuid [not null, ref: > channels.id]
  member_user_id uuid [ref: > users.id, note: 'NULL if agent']
  member_agent_id uuid [ref: > agents.id, note: 'NULL if user']
  role text [not null, note: 'owner | admin | member | guest | agent']
  joined_at timestamptz [default: `now()`]
  left_at timestamptz [note: 'NULL if active']
  
  indexes {
    (channel_id, member_user_id) [unique, note: 'User member']
    (channel_id, member_agent_id) [unique, note: 'Agent member']
    channel_id
  }
}

Table messages {
  id uuid [pk]
  channel_id uuid [not null, ref: > channels.id]
  matrix_event_id text [not null, unique, note: '$event:server']
  sender_user_id uuid [ref: > users.id, note: 'NULL if agent']
  sender_agent_id uuid [ref: > agents.id, note: 'NULL if user']
  sender_type text [not null, note: 'human | agent']
  content_preview text [not null, note: 'Truncated, full in Matrix']
  created_at timestamptz [default: `now()`]
  
  indexes {
    (channel_id, created_at) [note: 'Pagination']
    matrix_event_id [unique]
    sender_user_id
    sender_agent_id
  }
}

Table agent_sessions {
  id uuid [pk]
  agent_id uuid [not null, ref: > agents.id]
  channel_id uuid [not null, ref: > channels.id]
  started_at timestamptz [default: `now()`]
  last_activity_at timestamptz
  status text [not null, note: 'active | idle | closed']
  
  indexes {
    (agent_id, channel_id)
    status
  }
}

// Matrix Integration (conceptual, not stored in DAARION DB)
Table matrix_rooms {
  room_id text [pk, note: '!room:matrix.daarion.city']
  name text
  topic text
  note: 'Stored in Matrix Homeserver, referenced by channels.matrix_room_id'
}

Table matrix_events {
  event_id text [pk, note: '$event:server']
  room_id text [ref: > matrix_rooms.room_id]
  sender text
  type text
  content jsonb
  note: 'Stored in Matrix Homeserver, referenced by messages.matrix_event_id'
}

// Relationships Summary
Ref: microdaos.owner_user_id > users.id [note: '1 user owns many microDAOs']
Ref: microdao_members.microdao_id > microdaos.id [note: 'Many users in microDAO']
Ref: microdao_members.user_id > users.id [note: 'Many microDAOs per user']

Ref: agents.microdao_id > microdaos.id [note: 'Agent scoped to microDAO (optional)']
Ref: agents.owner_user_id > users.id [note: 'User owns agent (optional)']
Ref: agents.blueprint_id > agent_blueprints.id [note: 'Agent uses blueprint']

Ref: channels.microdao_id > microdaos.id [note: 'Channel belongs to microDAO']
Ref: channels.created_by_user_id > users.id [note: 'User created channel']
Ref: channels.created_by_agent_id > agents.id [note: 'Agent created channel']

Ref: channel_members.channel_id > channels.id [note: 'Members in channel']
Ref: channel_members.member_user_id > users.id [note: 'User member']
Ref: channel_members.member_agent_id > agents.id [note: 'Agent member']

Ref: messages.channel_id > channels.id [note: 'Message in channel']
Ref: messages.sender_user_id > users.id [note: 'User sent message']
Ref: messages.sender_agent_id > agents.id [note: 'Agent sent message']

Ref: agent_sessions.agent_id > agents.id [note: 'Agent session']
Ref: agent_sessions.channel_id > channels.id [note: 'Session in channel']

Ref: channels.matrix_room_id - matrix_rooms.room_id [note: 'Channel ↔ Matrix room']
Ref: messages.matrix_event_id - matrix_events.event_id [note: 'Message ↔ Matrix event']