-- rFiles schema — file sharing, memory cards
-- Inside rSpace shared DB, schema: rfiles

CREATE TABLE IF NOT EXISTS rfiles.media_files (
  id              UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
  original_filename VARCHAR(500) NOT NULL,
  title           VARCHAR(500),
  description     TEXT,
  mime_type       VARCHAR(200),
  file_size       BIGINT DEFAULT 0,
  file_hash       VARCHAR(64),
  storage_path    TEXT NOT NULL,
  tags            JSONB DEFAULT '[]',
  is_processed    BOOLEAN DEFAULT FALSE,
  processing_error TEXT,
  uploaded_by     TEXT,
  shared_space    TEXT,
  created_at      TIMESTAMPTZ DEFAULT NOW(),
  updated_at      TIMESTAMPTZ DEFAULT NOW()
);

CREATE INDEX IF NOT EXISTS idx_files_hash ON rfiles.media_files (file_hash);
CREATE INDEX IF NOT EXISTS idx_files_mime ON rfiles.media_files (mime_type);
CREATE INDEX IF NOT EXISTS idx_files_space ON rfiles.media_files (shared_space);
CREATE INDEX IF NOT EXISTS idx_files_created ON rfiles.media_files (created_at DESC);

CREATE TABLE IF NOT EXISTS rfiles.public_shares (
  id              UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
  token           VARCHAR(48) NOT NULL UNIQUE,
  media_file_id   UUID NOT NULL REFERENCES rfiles.media_files(id) ON DELETE CASCADE,
  created_by      TEXT,
  expires_at      TIMESTAMPTZ,
  max_downloads   INTEGER,
  download_count  INTEGER DEFAULT 0,
  is_password_protected BOOLEAN DEFAULT FALSE,
  password_hash   TEXT,
  note            VARCHAR(500),
  is_active       BOOLEAN DEFAULT TRUE,
  created_at      TIMESTAMPTZ DEFAULT NOW()
);

CREATE INDEX IF NOT EXISTS idx_shares_token ON rfiles.public_shares (token);
CREATE INDEX IF NOT EXISTS idx_shares_active ON rfiles.public_shares (is_active) WHERE is_active = TRUE;
CREATE INDEX IF NOT EXISTS idx_shares_expires ON rfiles.public_shares (expires_at);

CREATE TABLE IF NOT EXISTS rfiles.memory_cards (
  id              UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
  shared_space    TEXT NOT NULL,
  title           VARCHAR(500) NOT NULL,
  body            TEXT,
  card_type       VARCHAR(20) DEFAULT 'note' CHECK (card_type IN ('note', 'idea', 'task', 'reference', 'quote')),
  tags            JSONB DEFAULT '[]',
  position        INTEGER DEFAULT 0,
  created_by      TEXT,
  created_at      TIMESTAMPTZ DEFAULT NOW(),
  updated_at      TIMESTAMPTZ DEFAULT NOW()
);

CREATE INDEX IF NOT EXISTS idx_cards_space ON rfiles.memory_cards (shared_space);
CREATE INDEX IF NOT EXISTS idx_cards_type ON rfiles.memory_cards (card_type);
CREATE INDEX IF NOT EXISTS idx_cards_position ON rfiles.memory_cards (position);

CREATE TABLE IF NOT EXISTS rfiles.access_logs (
  id              UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
  media_file_id   UUID REFERENCES rfiles.media_files(id) ON DELETE CASCADE,
  share_id        UUID REFERENCES rfiles.public_shares(id) ON DELETE SET NULL,
  accessed_at     TIMESTAMPTZ DEFAULT NOW(),
  ip_address      INET,
  user_agent      VARCHAR(500),
  access_type     VARCHAR(20) DEFAULT 'download' CHECK (access_type IN ('download', 'view', 'share_created', 'share_revoked'))
);

CREATE INDEX IF NOT EXISTS idx_logs_accessed ON rfiles.access_logs (accessed_at DESC);
CREATE INDEX IF NOT EXISTS idx_logs_type ON rfiles.access_logs (access_type);