-- Create a table called interiors_roomtypes
-- This table should link the id in interiors table with a id from roomtypes table
CREATE TABLE interiors_roomtypes (
    id SERIAL PRIMARY KEY,
    interior_id INTEGER NOT NULL,
    roomtype_id INTEGER NOT NULL,

    -- Foreign key constraints with CASCADE DELETE
    CONSTRAINT fk_interiors_roomtypes_interiors
        FOREIGN KEY (interior_id) REFERENCES interiors(id) ON DELETE CASCADE,
    CONSTRAINT fk_interiors_roomtypes_roomtype
        FOREIGN KEY (roomtype_id) REFERENCES roomtypes(id) ON DELETE CASCADE,

    -- Ensure unique combination of room and roomtype (prevent duplicates)
    UNIQUE(interior_id, roomtype_id)
);

-- Create indexes for better query performance
CREATE INDEX idx_interiors_roomtypes_interior_id ON interiors_roomtypes(interior_id);
CREATE INDEX idx_interiors_roomtypes_roomtype_id ON interiors_roomtypes(roomtype_id);