package dao

import (
	"context"
	"fmt"

	"git.x2erp.com/qdy/go-svc-configure/internal/tables"
	"github.com/jmoiron/sqlx"
)

// CreateTenant 创建租户
func CreateTenant(ctx context.Context, tx *sqlx.Tx, tenantID, name, creator string) (int64, error) {
	id := fmt.Sprintf("tenant.%s", tenantID)

	query := `
		INSERT INTO config_tenant 
		(id, tenant_id, name, creator, created_at)
		VALUES (?, ?, ?, ?, CURRENT_TIMESTAMP)
	`

	result, err := tx.ExecContext(ctx, query, id, tenantID, name, creator)
	if err != nil {
		return -1, fmt.Errorf("创建租户失败: %v", err)
	}

	return ValidateResultRowsAffected(result, err, 1)
}

// GetTenantByTenantID 根据租户ID查询租户
func GetTenantByTenantID(ctx context.Context, db *sqlx.DB, tenantID string) (*tables.TenantDB, error) {
	var tenant tables.TenantDB

	query := `
		SELECT id, tenant_id, name, creator, created_at
		FROM config_tenant 
		WHERE tenant_id = ?
	`

	err := db.GetContext(ctx, &tenant, query, tenantID)
	if err != nil {
		return nil, fmt.Errorf("查询租户失败: %v", err)
	}

	return &tenant, nil
}

// ListTenants 查询租户列表
func ListTenants(ctx context.Context, db *sqlx.DB) ([]tables.TenantDB, error) {
	var tenants []tables.TenantDB

	query := `
		SELECT id, tenant_id, name, creator, created_at
		FROM config_tenant 
		ORDER BY created_at DESC
	`

	err := db.SelectContext(ctx, &tenants, query)
	if err != nil {
		return nil, fmt.Errorf("查询租户列表失败: %v", err)
	}

	return tenants, nil
}

// UpdateTenant 更新租户信息
func UpdateTenant(ctx context.Context, tx *sqlx.Tx, tenantID, name string) (int64, error) {
	query := `
		UPDATE config_tenant 
		SET name = ?
		WHERE tenant_id = ?
	`

	result, err := tx.ExecContext(ctx, query, name, tenantID)
	if err != nil {
		return -1, fmt.Errorf("更新租户失败: %v", err)
	}

	return ValidateResultRowsAffected(result, err, 1)
}

// DeleteTenant 删除租户
func DeleteTenant(ctx context.Context, tx *sqlx.Tx, tenantID string) (int64, error) {
	query := `DELETE FROM config_tenant WHERE tenant_id = ?`

	result, err := tx.ExecContext(ctx, query, tenantID)
	if err != nil {
		return -1, fmt.Errorf("删除租户失败: %v", err)
	}

	return ValidateResultRowsAffected(result, err, 1)
}

// CheckTenantExists 检查租户是否存在
func CheckTenantExists(ctx context.Context, db *sqlx.DB, tenantID string) (bool, error) {
	var count int
	query := `SELECT COUNT(*) FROM config_tenant WHERE tenant_id = ?`

	err := db.GetContext(ctx, &count, query, tenantID)
	if err != nil {
		return false, fmt.Errorf("检查租户存在性失败: %v", err)
	}

	return count > 0, nil
}