-- Migration 180: Personal user notes for bottom bar
-- Date: 2026-04-24

CREATE TABLE IF NOT EXISTS user_notes (
    id SERIAL PRIMARY KEY,
    user_id INTEGER NOT NULL REFERENCES users(user_id) ON DELETE CASCADE,
    title VARCHAR(200) NOT NULL DEFAULT '',
    content TEXT NOT NULL,
    is_pinned BOOLEAN NOT NULL DEFAULT FALSE,
    is_archived BOOLEAN NOT NULL DEFAULT FALSE,
    created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
    updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
    deleted_at TIMESTAMP NULL
);

CREATE INDEX IF NOT EXISTS idx_user_notes_user_active
    ON user_notes (user_id, is_archived, is_pinned, updated_at DESC)
    WHERE deleted_at IS NULL;

CREATE INDEX IF NOT EXISTS idx_user_notes_user_updated
    ON user_notes (user_id, updated_at DESC)
    WHERE deleted_at IS NULL;

CREATE OR REPLACE FUNCTION update_user_notes_updated_at()
RETURNS TRIGGER AS $$
BEGIN
    NEW.updated_at = CURRENT_TIMESTAMP;
    RETURN NEW;
END;
$$ LANGUAGE plpgsql;

DROP TRIGGER IF EXISTS trg_user_notes_updated_at ON user_notes;
CREATE TRIGGER trg_user_notes_updated_at
    BEFORE UPDATE ON user_notes
    FOR EACH ROW
    EXECUTE FUNCTION update_user_notes_updated_at();