CREATE TABLE files (
    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    organization_id UUID NOT NULL,
    user_id UUID NOT NULL,
    file_name VARCHAR(255) NOT NULL,
    original_name VARCHAR(255) NOT NULL,
    file_url VARCHAR(500) NOT NULL,
    file_size BIGINT NOT NULL,
    mime_type VARCHAR(100) NOT NULL,
    file_type VARCHAR(50) NOT NULL,
    upload_path VARCHAR(500) NOT NULL,
    is_public BOOLEAN DEFAULT TRUE,
    metadata JSONB,
    created_at TIMESTAMP WITH TIME ZONE DEFAULT NOW(),
    updated_at TIMESTAMP WITH TIME ZONE DEFAULT NOW()
);

-- Create indexes for better performance
CREATE INDEX idx_files_organization_id ON files(organization_id);
CREATE INDEX idx_files_user_id ON files(user_id);
CREATE INDEX idx_files_file_type ON files(file_type);
CREATE INDEX idx_files_created_at ON files(created_at);

-- Add foreign key constraints
ALTER TABLE files ADD CONSTRAINT fk_files_organization_id 
    FOREIGN KEY (organization_id) REFERENCES organizations(id) ON DELETE CASCADE;

ALTER TABLE files ADD CONSTRAINT fk_files_user_id 
    FOREIGN KEY (user_id) REFERENCES users(id) ON DELETE CASCADE;