-- ================================================================
-- 产品中心三模块架构升级迁移脚本
-- 执行前请备份数据库！
-- ================================================================

-- 1. f_product_category 增加 module_type 字段
ALTER TABLE f_product_category ADD COLUMN module_type VARCHAR(20) NOT NULL DEFAULT 'product_line' COMMENT '模块类型 product_line/equipment/spare_part' AFTER name_en;

-- 2. 更新现有分类的 module_type
UPDATE f_product_category SET module_type = 'product_line' WHERE product_category_id IN (1, 11, 12, 13, 21, 22, 23, 31, 32, 41);
UPDATE f_product_category SET module_type = 'equipment' WHERE product_category_id = 5;
UPDATE f_product_category SET module_type = 'spare_part' WHERE product_category_id = 6;

-- 3. 清空旧分类数据，按PPT重新插入三模块分类
DELETE FROM f_product_category;

-- 整线机组分类（parent_id = 1）
INSERT INTO f_product_category (product_category_id, name_zh, name_en, module_type, parent_id, sort_order) VALUES
  (1, '整线机组', 'Complete Production Line', 'product_line', NULL, 10),
  (11, '热镀锌/镀铝锌机组', 'Hot-dip Galvanizing/Aluminum-zinc Coating Line', 'product_line', 1, 11),
  (12, '锌铝镁机组', 'Zinc-aluminum-magnesium Coating Line', 'product_line', 1, 12),
  (13, '普碳钢连续退火线', 'Carbon Steel Continuous Annealing Line', 'product_line', 1, 13),
  (14, '冷轧板退火镀锌两用机组', 'Cold-rolled Sheet Annealing and Galvanizing Dual-purpose Line', 'product_line', 1, 14),
  (15, '彩涂机组', 'Color Coating Line', 'product_line', 1, 15),
  (16, '高效电工钢（硅钢）连续处理机组', 'High-efficiency Electrical Steel (Silicon Steel) Continuous Processing Line', 'product_line', 1, 16),
  (17, '碳钢酸洗机组', 'Carbon Steel Pickling Line', 'product_line', 1, 17),
  (18, '不锈钢连续退火酸洗机组', 'Stainless Steel Continuous Annealing and Pickling Line', 'product_line', 1, 18),
  (19, '拉矫线、脱脂线、重卷线', 'Tension Leveling Line, Degreasing Line, Recoiling Line', 'product_line', 1, 19);

-- 核心单体设备分类（parent_id = 2）
INSERT INTO f_product_category (product_category_id, name_zh, name_en, module_type, parent_id, sort_order) VALUES
  (2, '核心单体设备', 'Core Single Equipment', 'equipment', NULL, 20),
  (51, '红外辐射炉', 'Infrared Radiation Furnace', 'equipment', 2, 51),
  (52, '硅钢轧前感应加热', 'Induction Heating for Silicon Steel Before Rolling', 'equipment', 2, 52),
  (53, '气雾冷却', 'Aerosol Cooling', 'equipment', 2, 53),
  (54, '焊缝退火感应加热', 'Induction Heating for Weld Seam Annealing', 'equipment', 2, 54),
  (55, '氢气回收装置', 'Hydrogen Recovery Device', 'equipment', 2, 55),
  (56, '镀后冷却', 'Post-coating Cooling', 'equipment', 2, 56),
  (57, '涂层干燥感应加热', 'Induction Heating for Coating Drying', 'equipment', 2, 57),
  (58, '合金化炉', 'Alloying Furnace', 'equipment', 2, 58),
  (59, '镀锡软熔感应加热', 'Induction Heating for Tin Plating Reflow', 'equipment', 2, 59),
  (60, '电磁驱渣器', 'Electromagnetic Dross Remover', 'equipment', 2, 60),
  (61, '直燃无焰加热', 'Direct-fired Flameless Heating', 'equipment', 2, 61),
  (62, '圆盘剪、拉弯矫直、涂机、开收卷机', 'Circular Shear, Stretch-bend Straightener, Coater, Uncoiler/Coiler', 'equipment', 2, 62);

-- 备品备件分类（parent_id = 3）：五大分组，f_spare_part 多条单品共用 category_id
INSERT INTO f_product_category (product_category_id, name_zh, name_en, module_type, parent_id, sort_order) VALUES
  (3, '备品备件', 'Spare Parts', 'spare_part', NULL, 30),
  (71, 'W型/I型/U型辐射管', 'W-type/I-type/U-type Radiant Tubes', 'spare_part', 3, 71),
  (72, '翅片管换热器', 'Finned Tube Heat Exchanger', 'spare_part', 3, 72),
  (73, '炉辊、张力辊、镀铬辊、PU辊', 'Furnace Rolls, Tension Rolls, Chrome-plated Rolls, PU Rolls', 'spare_part', 3, 73),
  (74, '水淬辊、汲料辊、托辊', 'Water Quenching Rolls, Dross Skimming Rolls, Support Rolls', 'spare_part', 3, 74),
  (75, '轴套、衬套、滑块、支臂', 'Sleeves, Bushings, Sliders, Support Arms', 'spare_part', 3, 75);

ALTER TABLE f_product_category AUTO_INCREMENT = 100;

-- ================================================================
-- 4. f_product_line 增加整线机组专属字段
-- ================================================================
ALTER TABLE f_product_line ADD COLUMN cover_image VARCHAR(255) COMMENT '主封面图路径' AFTER achievements;
ALTER TABLE f_product_line ADD COLUMN applicable_materials_zh TEXT COMMENT '适用材料(中文)' AFTER cover_image;
ALTER TABLE f_product_line ADD COLUMN applicable_materials_en TEXT COMMENT '适用材料(英文)' AFTER applicable_materials_zh;
ALTER TABLE f_product_line ADD COLUMN thickness_range VARCHAR(200) COMMENT '厚度范围' AFTER applicable_materials_en;
ALTER TABLE f_product_line ADD COLUMN width_range VARCHAR(200) COMMENT '宽度范围' AFTER thickness_range;
ALTER TABLE f_product_line ADD COLUMN running_speed VARCHAR(200) COMMENT '运行速度' AFTER width_range;
ALTER TABLE f_product_line ADD COLUMN equipment_composition_zh TEXT COMMENT '设备组成(中文)' AFTER running_speed;
ALTER TABLE f_product_line ADD COLUMN equipment_composition_en TEXT COMMENT '设备组成(英文)' AFTER equipment_composition_zh;
ALTER TABLE f_product_line ADD COLUMN technical_highlights_zh TEXT COMMENT '技术亮点(中文)' AFTER equipment_composition_en;
ALTER TABLE f_product_line ADD COLUMN technical_highlights_en TEXT COMMENT '技术亮点(英文)' AFTER technical_highlights_zh;
ALTER TABLE f_product_line ADD COLUMN application_cases_zh TEXT COMMENT '应用案例(中文)' AFTER technical_highlights_en;
ALTER TABLE f_product_line ADD COLUMN application_cases_en TEXT COMMENT '应用案例(英文)' AFTER application_cases_zh;

-- ================================================================
-- 5. f_single_equipment 增加核心单体设备专属字段
-- ================================================================
ALTER TABLE f_single_equipment ADD COLUMN cover_image VARCHAR(255) COMMENT '设备实拍照片' AFTER technical_highlights_en;
ALTER TABLE f_single_equipment ADD COLUMN function_description_zh TEXT COMMENT '功能说明(中文)' AFTER cover_image;
ALTER TABLE f_single_equipment ADD COLUMN function_description_en TEXT COMMENT '功能说明(英文)' AFTER function_description_zh;
ALTER TABLE f_single_equipment ADD COLUMN product_advantages_zh TEXT COMMENT '产品优势(中文)' AFTER specifications_en;
ALTER TABLE f_single_equipment ADD COLUMN product_advantages_en TEXT COMMENT '产品优势(英文)' AFTER product_advantages_zh;
ALTER TABLE f_single_equipment ADD COLUMN applicable_lines_zh TEXT COMMENT '适配产线(中文)' AFTER product_advantages_en;
ALTER TABLE f_single_equipment ADD COLUMN applicable_lines_en TEXT COMMENT '适配产线(英文)' AFTER applicable_lines_zh;
ALTER TABLE f_single_equipment ADD COLUMN application_cases_zh TEXT COMMENT '应用案例(中文)' AFTER applicable_lines_en;
ALTER TABLE f_single_equipment ADD COLUMN application_cases_en TEXT COMMENT '应用案例(英文)' AFTER application_cases_zh;

-- ================================================================
-- 6. f_spare_part 增加备品备件专属字段
-- ================================================================
ALTER TABLE f_spare_part ADD COLUMN cover_image VARCHAR(255) COMMENT '产品实物图' AFTER applications;
ALTER TABLE f_spare_part ADD COLUMN model_spec VARCHAR(200) COMMENT '型号规格' AFTER cover_image;
ALTER TABLE f_spare_part ADD COLUMN applicable_line_model VARCHAR(200) COMMENT '适配机组型号' AFTER model_spec;
ALTER TABLE f_spare_part ADD COLUMN material_zh VARCHAR(200) COMMENT '材质(中文)' AFTER applicable_line_model;
ALTER TABLE f_spare_part ADD COLUMN material_en VARCHAR(200) COMMENT '材质(英文)' AFTER material_zh;
ALTER TABLE f_spare_part ADD COLUMN lifespan VARCHAR(200) COMMENT '使用寿命' AFTER material_en;
ALTER TABLE f_spare_part ADD COLUMN product_advantages_zh TEXT COMMENT '产品优势(中文)' AFTER lifespan;
ALTER TABLE f_spare_part ADD COLUMN product_advantages_en TEXT COMMENT '产品优势(英文)' AFTER product_advantages_zh;

-- ================================================================
-- 7. 新增整线机组与单体设备关联表
-- ================================================================
DROP TABLE IF EXISTS f_product_line_equipment;
CREATE TABLE f_product_line_equipment (
  id BIGINT NOT NULL AUTO_INCREMENT COMMENT '主键',
  product_line_id BIGINT NOT NULL COMMENT '整线机组ID',
  equipment_id BIGINT NOT NULL COMMENT '单体设备ID',
  sort_order INT NOT NULL DEFAULT 0 COMMENT '排序',
  create_time DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
  PRIMARY KEY (id),
  UNIQUE KEY uk_line_equipment (product_line_id, equipment_id),
  KEY idx_ple_equipment (equipment_id)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci COMMENT='整线机组与单体设备关联';

-- ================================================================
-- 8. 扩展 f_product_media 增加 product_type 字段以支持三模块
-- ================================================================
ALTER TABLE f_product_media ADD COLUMN product_type VARCHAR(20) NOT NULL DEFAULT 'product_line' COMMENT '产品类型 product_line/equipment/spare_part' AFTER product_id;

-- 删除旧的唯一索引并重建
ALTER TABLE f_product_media DROP INDEX uk_f_product_media_pair;
CREATE UNIQUE INDEX uk_f_product_media_pair ON f_product_media (product_id, product_type, media_id);