-- Migration: Add manual_feed_sack_entries table
-- Description: Store manual feed sack count entries separate from IOT camera data
-- Date: 2026-04-19

CREATE TABLE IF NOT EXISTS manual_feed_sack_entries (
    id SERIAL PRIMARY KEY,
    cycle_id VARCHAR(255) NOT NULL,
    day INTEGER NOT NULL,
    date DATE NOT NULL,
    camera_name VARCHAR(255) NOT NULL,
    count INTEGER NOT NULL CHECK(count >= 0),
    created_by VARCHAR(255),
    created_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP,
    updated_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP,
    FOREIGN KEY (cycle_id) REFERENCES cycles(id) ON DELETE CASCADE,
    UNIQUE(cycle_id, day, camera_name)
);

-- Create indexes for faster lookups
CREATE INDEX IF NOT EXISTS idx_manual_feed_sack_cycle ON manual_feed_sack_entries(cycle_id);
CREATE INDEX IF NOT EXISTS idx_manual_feed_sack_day ON manual_feed_sack_entries(day);
CREATE INDEX IF NOT EXISTS idx_manual_feed_sack_camera ON manual_feed_sack_entries(camera_name);

-- Trigger for automatic updated_at timestamp
DROP TRIGGER IF EXISTS update_manual_feed_sack_entries_updated_at ON manual_feed_sack_entries;
CREATE TRIGGER update_manual_feed_sack_entries_updated_at
    BEFORE UPDATE ON manual_feed_sack_entries
    FOR EACH ROW
    EXECUTE FUNCTION update_updated_at_column();