CREATE TABLE warehouses (
    id BIGINT NOT NULL AUTO_INCREMENT,
    organization_id BIGINT NOT NULL,
    code VARCHAR(50) NOT NULL,
    name VARCHAR(150) NOT NULL,
    status VARCHAR(20) NOT NULL DEFAULT 'active',
    created_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
    updated_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
    PRIMARY KEY (id),
    UNIQUE KEY uk_warehouses_org_code (organization_id, code),
    CONSTRAINT fk_warehouses_org FOREIGN KEY (organization_id) REFERENCES organizations(id) ON DELETE RESTRICT
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;

CREATE TABLE warehouse_locations (
    id BIGINT NOT NULL AUTO_INCREMENT,
    warehouse_id BIGINT NOT NULL,
    code VARCHAR(50) NOT NULL,
    name VARCHAR(150) NOT NULL,
    status VARCHAR(20) NOT NULL DEFAULT 'active',
    created_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
    updated_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
    PRIMARY KEY (id),
    UNIQUE KEY uk_warehouse_locations_warehouse_code (warehouse_id, code),
    CONSTRAINT fk_warehouse_locations_warehouse FOREIGN KEY (warehouse_id) REFERENCES warehouses(id) ON DELETE RESTRICT
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;

CREATE TABLE user_warehouses (
    user_id BIGINT NOT NULL,
    warehouse_id BIGINT NOT NULL,
    created_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
    PRIMARY KEY (user_id, warehouse_id),
    CONSTRAINT fk_user_warehouses_user FOREIGN KEY (user_id) REFERENCES users(id) ON DELETE CASCADE,
    CONSTRAINT fk_user_warehouses_warehouse FOREIGN KEY (warehouse_id) REFERENCES warehouses(id) ON DELETE RESTRICT
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;

INSERT INTO warehouses (id, organization_id, code, name, status)
VALUES (1, 1, 'DEFAULT', '默认仓库', 'active');

INSERT INTO warehouse_locations (id, warehouse_id, code, name, status)
VALUES (1, 1, 'MAIN', '主库位', 'active');

INSERT INTO user_warehouses (user_id, warehouse_id)
SELECT id, 1 FROM users;