CREATE DATABASE IF NOT EXISTS baiyue_finance
  DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci;
USE baiyue_finance;

CREATE TABLE IF NOT EXISTS fin_fee_source (
  id BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
  source_system VARCHAR(32) NOT NULL DEFAULT 'FIRSTLEG',
  source_fee_id BIGINT UNSIGNED NOT NULL,
  source_fee_version INT UNSIGNED NOT NULL,
  customer_id BIGINT UNSIGNED NOT NULL,
  order_id BIGINT UNSIGNED NULL,
  inbound_id BIGINT UNSIGNED NULL,
  fee_item_name VARCHAR(200) NOT NULL,
  amount DECIMAL(20,6) NOT NULL,
  currency_code CHAR(3) NOT NULL DEFAULT 'CNY',
  status VARCHAR(16) NOT NULL DEFAULT 'AVAILABLE',
  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
  PRIMARY KEY (id),
  UNIQUE KEY uk_fin_fee_source (source_system, source_fee_id, source_fee_version),
  KEY idx_fin_fee_source_customer (customer_id, status),
  CONSTRAINT chk_fin_fee_source_currency CHECK (currency_code = 'CNY'),
  CONSTRAINT chk_fin_fee_source_amount CHECK (amount >= 0)
) ENGINE=InnoDB COMMENT='Firstleg费用来源快照池；账单人工选择并固化明细';

CREATE TABLE IF NOT EXISTS fin_inbox_event (
  id BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
  event_id VARCHAR(128) NOT NULL,
  source_system VARCHAR(32) NOT NULL,
  event_type VARCHAR(64) NOT NULL,
  payload JSON NOT NULL,
  status VARCHAR(16) NOT NULL DEFAULT 'RECEIVED',
  received_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
  processed_at DATETIME(3) NULL,
  PRIMARY KEY (id),
  UNIQUE KEY uk_fin_inbox_event (source_system, event_id)
) ENGINE=InnoDB COMMENT='Firstleg费用事件幂等接收记录';

CREATE TABLE IF NOT EXISTS fin_subject (
  id BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
  subject_code VARCHAR(64) NOT NULL,
  subject_name VARCHAR(200) NOT NULL,
  status VARCHAR(16) NOT NULL DEFAULT 'ACTIVE',
  version INT UNSIGNED NOT NULL DEFAULT 0,
  created_by BIGINT UNSIGNED NOT NULL DEFAULT 0,
  updated_by BIGINT UNSIGNED NOT NULL DEFAULT 0,
  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
  updated_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) ON UPDATE CURRENT_TIMESTAMP(3),
  PRIMARY KEY (id),
  UNIQUE KEY uk_fin_subject_code (subject_code)
) ENGINE=InnoDB COMMENT='平台财务主体；首期仅一个有效主体';

CREATE TABLE IF NOT EXISTS fin_customer_settlement_profile (
  id BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
  tenant_id BIGINT UNSIGNED NOT NULL COMMENT '客户ID和数据隔离键',
  customer_name_snapshot VARCHAR(200) NOT NULL,
  credit_days INT UNSIGNED NOT NULL DEFAULT 30 COMMENT '默认30个自然日',
  status VARCHAR(16) NOT NULL DEFAULT 'ACTIVE',
  version INT UNSIGNED NOT NULL DEFAULT 0,
  created_by BIGINT UNSIGNED NOT NULL,
  updated_by BIGINT UNSIGNED NOT NULL,
  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
  updated_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) ON UPDATE CURRENT_TIMESTAMP(3),
  PRIMARY KEY (id),
  UNIQUE KEY uk_fin_customer_profile (tenant_id),
  CONSTRAINT chk_fin_customer_profile_tenant CHECK (tenant_id > 0),
  CONSTRAINT chk_fin_customer_profile_days CHECK (credit_days <= 3650)
) ENGINE=InnoDB COMMENT='客户结算配置；一客户一个结算对象';

CREATE TABLE IF NOT EXISTS fin_bill (
  id BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
  tenant_id BIGINT UNSIGNED NOT NULL,
  bill_no VARCHAR(64) NOT NULL,
  subject_id BIGINT UNSIGNED NOT NULL,
  customer_name_snapshot VARCHAR(200) NOT NULL,
  currency_code CHAR(3) NOT NULL DEFAULT 'CNY',
  bill_date DATE NOT NULL,
  due_date DATE NOT NULL,
  status VARCHAR(24) NOT NULL DEFAULT 'DRAFT' COMMENT 'DRAFT/ISSUED/PARTIALLY_PAID/PAID/VOIDED',
  total_amount DECIMAL(20,6) NOT NULL DEFAULT 0,
  received_amount DECIMAL(20,6) NOT NULL DEFAULT 0,
  outstanding_amount DECIMAL(20,6) NOT NULL DEFAULT 0,
  remark VARCHAR(500) NULL,
  issued_at DATETIME(3) NULL,
  issued_by BIGINT UNSIGNED NULL,
  voided_at DATETIME(3) NULL,
  voided_by BIGINT UNSIGNED NULL,
  void_reason VARCHAR(500) NULL,
  version INT UNSIGNED NOT NULL DEFAULT 0,
  created_by BIGINT UNSIGNED NOT NULL,
  updated_by BIGINT UNSIGNED NOT NULL,
  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
  updated_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) ON UPDATE CURRENT_TIMESTAMP(3),
  PRIMARY KEY (id),
  UNIQUE KEY uk_fin_bill_no (tenant_id, bill_no),
  KEY idx_fin_bill_customer_status_date (tenant_id, status, bill_date),
  CONSTRAINT chk_fin_bill_tenant CHECK (tenant_id > 0),
  CONSTRAINT chk_fin_bill_currency CHECK (currency_code = 'CNY'),
  CONSTRAINT chk_fin_bill_amounts CHECK (total_amount >= 0 AND received_amount >= 0 AND outstanding_amount >= 0)
) ENGINE=InnoDB COMMENT='客户CNY账单；首期账单即应收台账';

CREATE TABLE IF NOT EXISTS fin_bill_line (
  id BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
  tenant_id BIGINT UNSIGNED NOT NULL,
  bill_id BIGINT UNSIGNED NOT NULL,
  source_type VARCHAR(32) NOT NULL DEFAULT 'FIRSTLEG_FEE',
  source_id BIGINT UNSIGNED NOT NULL,
  source_version INT UNSIGNED NOT NULL,
  source_no VARCHAR(64) NULL,
  order_id BIGINT UNSIGNED NULL,
  inbound_id BIGINT UNSIGNED NULL,
  fee_item_code VARCHAR(64) NOT NULL,
  fee_item_name VARCHAR(200) NOT NULL,
  amount DECIMAL(20,6) NOT NULL,
  currency_code CHAR(3) NOT NULL DEFAULT 'CNY',
  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
  PRIMARY KEY (id),
  UNIQUE KEY uk_fin_bill_line_source (source_type, source_id, source_version),
  KEY idx_fin_bill_line_bill (tenant_id, bill_id),
  CONSTRAINT chk_fin_bill_line_tenant CHECK (tenant_id > 0),
  CONSTRAINT chk_fin_bill_line_currency CHECK (currency_code = 'CNY'),
  CONSTRAINT chk_fin_bill_line_amount CHECK (amount >= 0)
) ENGINE=InnoDB COMMENT='账单费用来源快照明细';

CREATE TABLE IF NOT EXISTS fin_receipt (
  id BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
  tenant_id BIGINT UNSIGNED NOT NULL,
  receipt_no VARCHAR(64) NOT NULL,
  subject_id BIGINT UNSIGNED NOT NULL,
  currency_code CHAR(3) NOT NULL DEFAULT 'CNY',
  received_amount DECIMAL(20,6) NOT NULL,
  received_at DATETIME(3) NOT NULL,
  payment_method VARCHAR(32) NULL,
  voucher_no VARCHAR(128) NULL,
  voucher_file_ids JSON NOT NULL COMMENT 'File服务文件ID字符串数组',
  status VARCHAR(16) NOT NULL DEFAULT 'CONFIRMED' COMMENT 'CONFIRMED/VOIDED',
  remark VARCHAR(500) NULL,
  voided_at DATETIME(3) NULL,
  voided_by BIGINT UNSIGNED NULL,
  void_reason VARCHAR(500) NULL,
  version INT UNSIGNED NOT NULL DEFAULT 0,
  created_by BIGINT UNSIGNED NOT NULL,
  updated_by BIGINT UNSIGNED NOT NULL,
  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
  updated_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) ON UPDATE CURRENT_TIMESTAMP(3),
  PRIMARY KEY (id),
  UNIQUE KEY uk_fin_receipt_no (tenant_id, receipt_no),
  KEY idx_fin_receipt_customer_time (tenant_id, received_at),
  CONSTRAINT chk_fin_receipt_tenant CHECK (tenant_id > 0),
  CONSTRAINT chk_fin_receipt_currency CHECK (currency_code = 'CNY'),
  CONSTRAINT chk_fin_receipt_amount CHECK (received_amount > 0)
) ENGINE=InnoDB COMMENT='平台财务人工登记收款及凭证';

CREATE TABLE IF NOT EXISTS fin_receipt_bill (
  id BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
  tenant_id BIGINT UNSIGNED NOT NULL,
  receipt_id BIGINT UNSIGNED NOT NULL,
  bill_id BIGINT UNSIGNED NOT NULL,
  applied_amount DECIMAL(20,6) NOT NULL,
  created_by BIGINT UNSIGNED NOT NULL,
  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
  PRIMARY KEY (id),
  UNIQUE KEY uk_fin_receipt_bill_pair (receipt_id, bill_id),
  KEY idx_fin_receipt_bill_bill (tenant_id, bill_id),
  CONSTRAINT chk_fin_receipt_bill_tenant CHECK (tenant_id > 0),
  CONSTRAINT chk_fin_receipt_bill_amount CHECK (applied_amount > 0)
) ENGINE=InnoDB COMMENT='人工收款对应账单金额；UI不使用复杂核销术语';

CREATE TABLE IF NOT EXISTS fin_cost (
  id BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
  tenant_id BIGINT UNSIGNED NOT NULL,
  cost_no VARCHAR(64) NOT NULL,
  cost_type VARCHAR(24) NOT NULL COMMENT 'SINGLE_ORDER/CONTAINER_SHARED',
  order_id BIGINT UNSIGNED NULL,
  inbound_id BIGINT UNSIGNED NULL,
  container_id BIGINT UNSIGNED NULL,
  supplier_id BIGINT UNSIGNED NULL,
  supplier_name_snapshot VARCHAR(200) NULL,
  fee_item_code VARCHAR(64) NOT NULL,
  fee_item_name VARCHAR(200) NOT NULL,
  currency_code CHAR(3) NOT NULL DEFAULT 'CNY',
  cost_amount DECIMAL(20,6) NOT NULL,
  voucher_file_ids JSON NOT NULL,
  status VARCHAR(16) NOT NULL DEFAULT 'DRAFT' COMMENT 'DRAFT/CONFIRMED/VOIDED',
  remark VARCHAR(500) NULL,
  confirmed_at DATETIME(3) NULL,
  confirmed_by BIGINT UNSIGNED NULL,
  voided_at DATETIME(3) NULL,
  voided_by BIGINT UNSIGNED NULL,
  void_reason VARCHAR(500) NULL,
  version INT UNSIGNED NOT NULL DEFAULT 0,
  created_by BIGINT UNSIGNED NOT NULL,
  updated_by BIGINT UNSIGNED NOT NULL,
  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
  updated_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) ON UPDATE CURRENT_TIMESTAMP(3),
  PRIMARY KEY (id),
  UNIQUE KEY uk_fin_cost_no (tenant_id, cost_no),
  KEY idx_fin_cost_ticket (tenant_id, order_id, inbound_id),
  KEY idx_fin_cost_container (tenant_id, container_id),
  CONSTRAINT chk_fin_cost_tenant CHECK (tenant_id > 0),
  CONSTRAINT chk_fin_cost_currency CHECK (currency_code = 'CNY'),
  CONSTRAINT chk_fin_cost_amount CHECK (cost_amount > 0),
  CONSTRAINT chk_fin_cost_target CHECK (
    (cost_type = 'SINGLE_ORDER' AND order_id IS NOT NULL AND container_id IS NULL)
    OR (cost_type = 'CONTAINER_SHARED' AND container_id IS NOT NULL)
  )
) ENGINE=InnoDB COMMENT='人工成本；单票直接归属，整柜按体积分摊';

CREATE TABLE IF NOT EXISTS fin_cost_allocation (
  id BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
  tenant_id BIGINT UNSIGNED NOT NULL,
  cost_id BIGINT UNSIGNED NOT NULL,
  order_id BIGINT UNSIGNED NOT NULL,
  inbound_id BIGINT UNSIGNED NULL,
  volume_cbm DECIMAL(20,6) NOT NULL,
  total_volume_cbm DECIMAL(20,6) NOT NULL,
  allocation_rate DECIMAL(20,10) NOT NULL,
  allocated_amount DECIMAL(20,6) NOT NULL,
  rounding_adjustment TINYINT NOT NULL DEFAULT 0 COMMENT '1表示尾差归集行',
  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
  PRIMARY KEY (id),
  UNIQUE KEY uk_fin_cost_allocation_order (cost_id, order_id),
  KEY idx_fin_cost_allocation_query (tenant_id, order_id),
  CONSTRAINT chk_fin_cost_allocation_volume CHECK (volume_cbm >= 0 AND total_volume_cbm > 0),
  CONSTRAINT chk_fin_cost_allocation_amount CHECK (allocated_amount >= 0)
) ENGINE=InnoDB COMMENT='整柜成本按有效体积分摊的可审计结果';

CREATE TABLE IF NOT EXISTS fin_bill_revision (
  id BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
  tenant_id BIGINT UNSIGNED NOT NULL,
  bill_id BIGINT UNSIGNED NOT NULL,
  version INT UNSIGNED NOT NULL,
  reason VARCHAR(500) NULL,
  bill_snapshot JSON NOT NULL,
  line_snapshot JSON NOT NULL,
  created_by BIGINT UNSIGNED NOT NULL,
  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
  PRIMARY KEY (id),
  UNIQUE KEY uk_fin_bill_revision (bill_id, version),
  KEY idx_fin_bill_revision_tenant (tenant_id, bill_id)
) ENGINE=InnoDB COMMENT='出账后调整前的不可变账单及明细版本快照';

CREATE TABLE IF NOT EXISTS fin_idempotency_record (
  id BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
  tenant_id BIGINT UNSIGNED NOT NULL,
  operator_id BIGINT UNSIGNED NOT NULL,
  operation VARCHAR(64) NOT NULL,
  idempotency_key VARCHAR(128) NOT NULL,
  request_hash CHAR(64) NOT NULL,
  status VARCHAR(16) NOT NULL COMMENT 'PROCESSING/SUCCEEDED/FAILED',
  result_resource_id BIGINT UNSIGNED NULL,
  error_code VARCHAR(64) NULL,
  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
  updated_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) ON UPDATE CURRENT_TIMESTAMP(3),
  PRIMARY KEY (id),
  UNIQUE KEY uk_fin_idempotency (tenant_id, operator_id, operation, idempotency_key)
) ENGINE=InnoDB COMMENT='Finance人工写操作幂等记录';

CREATE TABLE IF NOT EXISTS fin_audit_log (
  id BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
  tenant_id BIGINT UNSIGNED NOT NULL,
  resource_type VARCHAR(32) NOT NULL,
  resource_id BIGINT UNSIGNED NOT NULL,
  action VARCHAR(64) NOT NULL,
  reason VARCHAR(500) NULL,
  before_data JSON NULL,
  after_data JSON NULL,
  operator_id BIGINT UNSIGNED NOT NULL,
  operator_name_snapshot VARCHAR(128) NOT NULL,
  request_id VARCHAR(128) NULL,
  trace_id VARCHAR(128) NULL,
  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
  PRIMARY KEY (id),
  KEY idx_fin_audit_resource (tenant_id, resource_type, resource_id, created_at),
  KEY idx_fin_audit_operator (operator_id, created_at)
) ENGINE=InnoDB COMMENT='Finance不可变业务审计明细';