-- 010_house_tables.sql
-- 看房系统（House）核心数据模型：9 张表。
-- 约定：BIGINT UNSIGNED 自增主键；统一 created_at/updated_at/deleted_at（GoFrame 软删除）；
--       经纬度 GCJ-02；价格单位（总价万元 / 单价元每平米）。
-- 幂等：CREATE TABLE IF NOT EXISTS，可重复执行。

-- 1) 楼盘/小区主档
CREATE TABLE IF NOT EXISTS house_community (
  id BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
  name VARCHAR(128) NOT NULL COMMENT '小区/楼盘名',
  region VARCHAR(64) NOT NULL DEFAULT '' COMMENT '区县(云岩/南明/观山湖/花溪等)',
  business_district VARCHAR(64) NOT NULL DEFAULT '' COMMENT '板块',
  address VARCHAR(255) NOT NULL DEFAULT '' COMMENT '地址',
  lng DECIMAL(10,6) NOT NULL DEFAULT 0 COMMENT '经度(GCJ-02)',
  lat DECIMAL(10,6) NOT NULL DEFAULT 0 COMMENT '纬度(GCJ-02)',
  build_year INT NOT NULL DEFAULT 0 COMMENT '建成年份',
  households INT NOT NULL DEFAULT 0 COMMENT '总户数',
  plot_ratio DECIMAL(6,3) NOT NULL DEFAULT 0 COMMENT '容积率',
  green_rate DECIMAL(6,3) NOT NULL DEFAULT 0 COMMENT '绿化率',
  property_company VARCHAR(128) NOT NULL DEFAULT '' COMMENT '物业公司',
  property_fee DECIMAL(10,2) NOT NULL DEFAULT 0 COMMENT '物业费(元/月/平米)',
  developer VARCHAR(128) NOT NULL DEFAULT '' COMMENT '开发商',
  source VARCHAR(32) NOT NULL DEFAULT '' COMMENT '数据来源',
  created_at DATETIME NOT NULL,
  updated_at DATETIME NOT NULL,
  deleted_at DATETIME NULL,
  PRIMARY KEY (id),
  KEY idx_community_name (name),
  KEY idx_community_region (region, business_district),
  KEY idx_community_lnglat (lng, lat),
  KEY idx_community_deleted_at (deleted_at)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='楼盘/小区';

-- 2) 楼栋（具体到栋）
CREATE TABLE IF NOT EXISTS house_building (
  id BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
  community_id BIGINT UNSIGNED NOT NULL COMMENT '小区ID',
  building_no VARCHAR(32) NOT NULL DEFAULT '' COMMENT '栋号',
  units INT NOT NULL DEFAULT 0 COMMENT '单元数',
  total_floors INT NOT NULL DEFAULT 0 COMMENT '总楼层',
  elevator_count INT NOT NULL DEFAULT 0 COMMENT '电梯数',
  ladder_ratio VARCHAR(32) NOT NULL DEFAULT '' COMMENT '梯户比',
  building_type VARCHAR(16) NOT NULL DEFAULT '' COMMENT '板楼/塔楼',
  lng DECIMAL(10,6) NOT NULL DEFAULT 0 COMMENT '楼栋经度',
  lat DECIMAL(10,6) NOT NULL DEFAULT 0 COMMENT '楼栋纬度',
  created_at DATETIME NOT NULL,
  updated_at DATETIME NOT NULL,
  deleted_at DATETIME NULL,
  PRIMARY KEY (id),
  KEY idx_building_community (community_id),
  KEY idx_building_deleted_at (deleted_at)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='楼栋';

-- 3) 房源/挂牌（核心，多平台不去重）
CREATE TABLE IF NOT EXISTS house_listing (
  id BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
  community_id BIGINT UNSIGNED NOT NULL DEFAULT 0 COMMENT '小区ID',
  building_id BIGINT UNSIGNED NOT NULL DEFAULT 0 COMMENT '楼栋ID',
  house_no VARCHAR(64) NOT NULL DEFAULT '' COMMENT '房号',
  layout VARCHAR(32) NOT NULL DEFAULT '' COMMENT '户型(如3室2厅)',
  area DECIMAL(10,2) NOT NULL DEFAULT 0 COMMENT '建筑面积(平米)',
  usable_area DECIMAL(10,2) NOT NULL DEFAULT 0 COMMENT '套内面积(平米)',
  orientation VARCHAR(32) NOT NULL DEFAULT '' COMMENT '朝向',
  floor INT NOT NULL DEFAULT 0 COMMENT '所在楼层',
  total_floors INT NOT NULL DEFAULT 0 COMMENT '总楼层',
  decoration VARCHAR(32) NOT NULL DEFAULT '' COMMENT '装修',
  total_price DECIMAL(12,2) NOT NULL DEFAULT 0 COMMENT '总价(万元)',
  unit_price DECIMAL(10,2) NOT NULL DEFAULT 0 COMMENT '单价(元/平米)',
  list_price DECIMAL(12,2) NOT NULL DEFAULT 0 COMMENT '挂牌价(万元)',
  source VARCHAR(32) NOT NULL DEFAULT '' COMMENT '来源平台',
  source_house_id VARCHAR(64) NOT NULL DEFAULT '' COMMENT '平台侧房源ID',
  source_url VARCHAR(512) NOT NULL DEFAULT '' COMMENT '房源链接',
  match_group_id BIGINT UNSIGNED NOT NULL DEFAULT 0 COMMENT '疑似同房源分组(跨平台软关联)',
  on_market_days INT NOT NULL DEFAULT 0 COMMENT '挂牌天数',
  price_change_count INT NOT NULL DEFAULT 0 COMMENT '调价次数',
  status INT NOT NULL DEFAULT 1 COMMENT '1在售 2下架 3成交',
  confidence INT NOT NULL DEFAULT 0 COMMENT '可信度 0正常 1低可信',
  is_bargain INT NOT NULL DEFAULT 0 COMMENT '笋盘标记 0否 1是',
  listing_time DATETIME NULL COMMENT '挂牌时间',
  created_at DATETIME NOT NULL,
  updated_at DATETIME NOT NULL,
  deleted_at DATETIME NULL,
  PRIMARY KEY (id),
  UNIQUE KEY uk_listing_source_house (source, source_house_id),
  KEY idx_listing_community (community_id),
  KEY idx_listing_match_group (match_group_id),
  KEY idx_listing_unit_price (unit_price),
  KEY idx_listing_status (status),
  KEY idx_listing_deleted_at (deleted_at)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='房源/挂牌';

-- 4) 价格快照（时序，趋势分析命脉）
CREATE TABLE IF NOT EXISTS house_price_snapshot (
  id BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
  listing_id BIGINT UNSIGNED NOT NULL COMMENT '房源ID',
  community_id BIGINT UNSIGNED NOT NULL DEFAULT 0 COMMENT '小区ID',
  snap_date DATE NOT NULL COMMENT '快照日期',
  list_price DECIMAL(12,2) NOT NULL DEFAULT 0 COMMENT '挂牌价(万元)',
  deal_price DECIMAL(12,2) NOT NULL DEFAULT 0 COMMENT '成交价(万元)',
  created_at DATETIME NOT NULL,
  updated_at DATETIME NOT NULL,
  deleted_at DATETIME NULL,
  PRIMARY KEY (id),
  UNIQUE KEY uk_snapshot_listing_date (listing_id, snap_date),
  KEY idx_snapshot_community_date (community_id, snap_date),
  KEY idx_snapshot_deleted_at (deleted_at)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='价格快照';

-- 5) 成交记录
CREATE TABLE IF NOT EXISTS house_transaction (
  id BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
  community_id BIGINT UNSIGNED NOT NULL DEFAULT 0 COMMENT '小区ID',
  building_id BIGINT UNSIGNED NOT NULL DEFAULT 0 COMMENT '楼栋ID',
  layout VARCHAR(32) NOT NULL DEFAULT '' COMMENT '户型',
  area DECIMAL(10,2) NOT NULL DEFAULT 0 COMMENT '面积(平米)',
  deal_price DECIMAL(12,2) NOT NULL DEFAULT 0 COMMENT '成交总价(万元)',
  deal_unit_price DECIMAL(10,2) NOT NULL DEFAULT 0 COMMENT '成交单价(元/平米)',
  list_days INT NOT NULL DEFAULT 0 COMMENT '挂牌到成交天数',
  deal_date DATE NULL COMMENT '成交日期',
  source VARCHAR(32) NOT NULL DEFAULT '' COMMENT '来源',
  created_at DATETIME NOT NULL,
  updated_at DATETIME NOT NULL,
  deleted_at DATETIME NULL,
  PRIMARY KEY (id),
  KEY idx_transaction_community (community_id),
  KEY idx_transaction_deal_date (deal_date),
  KEY idx_transaction_deleted_at (deleted_at)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='成交记录';

-- 6) 配套 POI（地铁站/学校/医院/商圈）
CREATE TABLE IF NOT EXISTS house_facility (
  id BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
  name VARCHAR(128) NOT NULL COMMENT '配套名称',
  type VARCHAR(32) NOT NULL DEFAULT '' COMMENT '地铁/学校/医院/商圈',
  lng DECIMAL(10,6) NOT NULL DEFAULT 0 COMMENT '经度',
  lat DECIMAL(10,6) NOT NULL DEFAULT 0 COMMENT '纬度',
  line VARCHAR(32) NOT NULL DEFAULT '' COMMENT '地铁线路',
  created_at DATETIME NOT NULL,
  updated_at DATETIME NOT NULL,
  deleted_at DATETIME NULL,
  PRIMARY KEY (id),
  KEY idx_facility_type (type),
  KEY idx_facility_deleted_at (deleted_at)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='配套POI';

-- 7) 小区-配套关系
CREATE TABLE IF NOT EXISTS house_community_facility (
  id BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
  community_id BIGINT UNSIGNED NOT NULL COMMENT '小区ID',
  facility_id BIGINT UNSIGNED NOT NULL COMMENT '配套ID',
  distance INT NOT NULL DEFAULT 0 COMMENT '距离(米)',
  commute_minutes INT NOT NULL DEFAULT 0 COMMENT '通勤分钟',
  created_at DATETIME NOT NULL,
  updated_at DATETIME NOT NULL,
  deleted_at DATETIME NULL,
  PRIMARY KEY (id),
  UNIQUE KEY uk_cf_community_facility (community_id, facility_id),
  KEY idx_cf_facility (facility_id),
  KEY idx_cf_deleted_at (deleted_at)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='小区-配套关系';

-- 8) 学区划片（版本化）
CREATE TABLE IF NOT EXISTS house_school_district (
  id BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
  school_name VARCHAR(128) NOT NULL COMMENT '学校名',
  community_id BIGINT UNSIGNED NOT NULL DEFAULT 0 COMMENT '小区ID',
  district_polygon TEXT NULL COMMENT '划片范围GeoJSON',
  district_year INT NOT NULL DEFAULT 0 COMMENT '划片年度',
  note VARCHAR(255) NOT NULL DEFAULT '' COMMENT '备注',
  created_at DATETIME NOT NULL,
  updated_at DATETIME NOT NULL,
  deleted_at DATETIME NULL,
  PRIMARY KEY (id),
  KEY idx_sd_community (community_id),
  KEY idx_sd_year (district_year),
  KEY idx_sd_deleted_at (deleted_at)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='学区划片';

-- 9) 用户偏好画像
CREATE TABLE IF NOT EXISTS house_preference (
  id BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
  budget_min DECIMAL(12,2) NOT NULL DEFAULT 0 COMMENT '预算下限(万元)',
  budget_max DECIMAL(12,2) NOT NULL DEFAULT 0 COMMENT '预算上限(万元)',
  area_min DECIMAL(10,2) NOT NULL DEFAULT 0 COMMENT '面积下限(平米)',
  area_max DECIMAL(10,2) NOT NULL DEFAULT 0 COMMENT '面积上限(平米)',
  layouts VARCHAR(255) NOT NULL DEFAULT '' COMMENT '户型偏好JSON',
  subway_lines VARCHAR(255) NOT NULL DEFAULT '' COMMENT '地铁线路JSON',
  school_required INT NOT NULL DEFAULT 0 COMMENT '是否要求学区',
  commute_target VARCHAR(255) NOT NULL DEFAULT '' COMMENT '通勤目标点',
  commute_limit_min INT NOT NULL DEFAULT 0 COMMENT '通勤上限(分钟)',
  region_prefer VARCHAR(255) NOT NULL DEFAULT '' COMMENT '区域偏好JSON',
  weights VARCHAR(512) NOT NULL DEFAULT '' COMMENT '权重JSON',
  created_at DATETIME NOT NULL,
  updated_at DATETIME NOT NULL,
  deleted_at DATETIME NULL,
  PRIMARY KEY (id),
  KEY idx_pref_deleted_at (deleted_at)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='用户偏好画像';