# frozen_string_literal: true

# Migración 004: Crear tabla events para Bitácora Web
# ====================================================
# Esta tabla almacena eventos visibles en la Bitácora Web
# Es el medio de comunicación donde los drones dejan registro de su actividad

require_relative '../core/bitacora_db'

module BitacorasDB
  module Migrations
    class CreateEventsTable
      def self.up
        BitacorasDB::BitacoraDB.with_connection do |db|
          # Crear tabla
          db.instance_variable_get(:@connection).exec(<<~SQL)
            CREATE TABLE IF NOT EXISTS bitacoras.events (
              id              SERIAL PRIMARY KEY,
              nodo_id         INTEGER NOT NULL REFERENCES bitacoras.nodos(id),
              descripcion     TEXT NOT NULL,
              estado          VARCHAR(10) NOT NULL DEFAULT '⏳',
              inicio          VARCHAR(10) NOT NULL,
              fin             VARCHAR(10),
              modo            VARCHAR(10) DEFAULT 'A',
              metadata        JSONB DEFAULT '{}'::jsonb,
              created_at      TIMESTAMP DEFAULT NOW(),
              updated_at      TIMESTAMP DEFAULT NOW()
            )
          SQL

          # Crear índices
          db.instance_variable_get(:@connection).exec("CREATE INDEX IF NOT EXISTS idx_events_nodo ON bitacoras.events(nodo_id)")
          db.instance_variable_get(:@connection).exec("CREATE INDEX IF NOT EXISTS idx_events_estado ON bitacoras.events(estado)")
          db.instance_variable_get(:@connection).exec("CREATE INDEX IF NOT EXISTS idx_events_inicio ON bitacoras.events(inicio)")
          db.instance_variable_get(:@connection).exec("CREATE INDEX IF NOT EXISTS idx_events_metadata ON bitacoras.events USING GIN(metadata)")

          # Enable RLS
          db.instance_variable_get(:@connection).exec("ALTER TABLE bitacoras.events ENABLE ROW LEVEL SECURITY")

          # Policies
          db.instance_variable_get(:@connection).exec("DROP POLICY IF EXISTS events_insert ON bitacoras.events")
          db.instance_variable_get(:@connection).exec("CREATE POLICY events_insert ON bitacoras.events FOR INSERT WITH CHECK (true)")

          db.instance_variable_get(:@connection).exec("DROP POLICY IF EXISTS events_select ON bitacoras.events")
          db.instance_variable_get(:@connection).exec("CREATE POLICY events_select ON bitacoras.events FOR SELECT USING (true)")

          db.instance_variable_get(:@connection).exec("DROP POLICY IF EXISTS events_update ON bitacoras.events")
          db.instance_variable_get(:@connection).exec("CREATE POLICY events_update ON bitacoras.events FOR UPDATE USING (true)")
        end
        puts "✅ Tabla bitacoras.events creada"
      end

      def self.down
        BitacorasDB::BitacoraDB.with_connection do |db|
          db.instance_variable_get(:@connection).exec("DROP TABLE IF EXISTS bitacoras.events CASCADE")
        end
        puts "✅ Tabla bitacoras.events eliminada"
      end
    end
  end
end

if __FILE__ == $PROGRAM_NAME
  BitacorasDB::Migrations::CreateEventsTable.up
end