i/server/migrations/mysql/0003_vehicles.sql

-- 0003_vehicles.sql - 车辆管理 (MySQL)

CREATE TABLE IF NOT EXISTS vehicles (
    id          INT AUTO_INCREMENT PRIMARY KEY,
    name        VARCHAR(100)    NOT NULL,
    plate       VARCHAR(20)     DEFAULT NULL,
    type        VARCHAR(20)     NOT NULL DEFAULT 'car',
    color       VARCHAR(30)     DEFAULT NULL,
    notes       TEXT            DEFAULT NULL,
    is_active   TINYINT(1)     NOT NULL DEFAULT 1,
    sort_order  INT             NOT NULL DEFAULT 0,
    created_at  DATETIME        NOT NULL DEFAULT CURRENT_TIMESTAMP,
    updated_at  DATETIME        NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
    CONSTRAINT chk_vehicle_type CHECK (type IN ('car','suv','mpv','truck','other'))
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

CREATE INDEX idx_vehicles_active ON vehicles(is_active);
CREATE INDEX idx_vehicles_sort   ON vehicles(sort_order);

ALTER TABLE wash_records ADD COLUMN vehicle_id INT DEFAULT NULL;
CREATE INDEX idx_wash_records_vehicle ON wash_records(vehicle_id);

DROP VIEW IF EXISTS v_last_wash;
CREATE VIEW v_last_wash AS
SELECT
    w.id              AS wash_id,
    w.wash_date,
    w.wash_type,
    w.vehicle_id,
    v.name            AS vehicle_name,
    DATEDIFF(NOW(), STR_TO_DATE(w.wash_date, '%Y-%m-%d')) AS days_since
FROM wash_records w
LEFT JOIN vehicles v ON v.id = w.vehicle_id
ORDER BY w.wash_date DESC, w.id DESC
LIMIT 1;