修复图表时间和查询区间不匹配问题

backend/internal/device/mysql_storage.go

@@ -0,0 +1,116 @@
+package device
+
+import (
+	"database/sql"
+	"time"
+)
+
+// MySQLStorage MySQL设备存储
+
+type MySQLStorage struct {
+	db *sql.DB
+}
+
+// NewMySQLStorage 创建MySQL设备存储实例
+func NewMySQLStorage(db *sql.DB) (*MySQLStorage, error) {
+	// 创建表
+	if err := createDeviceTable(db); err != nil {
+		return nil, err
+	}
+	return &MySQLStorage{db: db}, nil
+}
+
+// createDeviceTable 创建设备表
+func createDeviceTable(db *sql.DB) error {
+	query := `
+	CREATE TABLE IF NOT EXISTS devices (
+		id VARCHAR(64) PRIMARY KEY,
+		name VARCHAR(128) NOT NULL,
+		ip VARCHAR(64),
+		token VARCHAR(64) NOT NULL,
+		status VARCHAR(32) NOT NULL DEFAULT 'inactive',
+		created_at BIGINT NOT NULL,
+		updated_at BIGINT NOT NULL,
+		UNIQUE KEY uk_token (token)
+	) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci
+	`
+	_, err := db.Exec(query)
+	return err
+}
+
+// GetDevices 获取所有设备
+func (s *MySQLStorage) GetDevices() []Device {
+	query := "SELECT id, name, ip, token, status, created_at, updated_at FROM devices"
+	rows, err := s.db.Query(query)
+	if err != nil {
+		return []Device{}
+	}
+	defer rows.Close()
+
+	devices := make([]Device, 0)
+	for rows.Next() {
+		var device Device
+		if err := rows.Scan(&device.ID, &device.Name, &device.IP, &device.Token, &device.Status, &device.CreatedAt, &device.UpdatedAt); err != nil {
+			continue
+		}
+		devices = append(devices, device)
+	}
+
+	return devices
+}
+
+// GetDevice 获取指定设备
+func (s *MySQLStorage) GetDevice(id string) (Device, bool) {
+	query := "SELECT id, name, ip, token, status, created_at, updated_at FROM devices WHERE id = ?"
+	row := s.db.QueryRow(query, id)
+
+	var device Device
+	err := row.Scan(&device.ID, &device.Name, &device.IP, &device.Token, &device.Status, &device.CreatedAt, &device.UpdatedAt)
+	if err != nil {
+		return Device{}, false
+	}
+
+	return device, true
+}
+
+// GetDeviceByToken 通过令牌获取设备
+func (s *MySQLStorage) GetDeviceByToken(token string) (Device, bool) {
+	query := "SELECT id, name, ip, token, status, created_at, updated_at FROM devices WHERE token = ?"
+	row := s.db.QueryRow(query, token)
+
+	var device Device
+	err := row.Scan(&device.ID, &device.Name, &device.IP, &device.Token, &device.Status, &device.CreatedAt, &device.UpdatedAt)
+	if err != nil {
+		return Device{}, false
+	}
+
+	return device, true
+}
+
+// AddDevice 添加设备
+func (s *MySQLStorage) AddDevice(device Device) error {
+	query := "INSERT INTO devices (id, name, ip, token, status, created_at, updated_at) VALUES (?, ?, ?, ?, ?, ?, ?) ON DUPLICATE KEY UPDATE name = VALUES(name), ip = VALUES(ip), updated_at = VALUES(updated_at)"
+	_, err := s.db.Exec(query, device.ID, device.Name, device.IP, device.Token, device.Status, device.CreatedAt, device.UpdatedAt)
+	return err
+}
+
+// UpdateDevice 更新设备
+func (s *MySQLStorage) UpdateDevice(device Device) error {
+	query := "UPDATE devices SET name = ?, ip = ?, status = ?, updated_at = ? WHERE id = ?"
+	_, err := s.db.Exec(query, device.Name, device.IP, device.Status, device.UpdatedAt, device.ID)
+	return err
+}
+
+// DeleteDevice 删除设备
+func (s *MySQLStorage) DeleteDevice(id string) error {
+	query := "DELETE FROM devices WHERE id = ?"
+	_, err := s.db.Exec(query, id)
+	return err
+}
+
+// UpdateDeviceStatus 更新设备状态
+func (s *MySQLStorage) UpdateDeviceStatus(id string, status string) error {
+	query := "UPDATE devices SET status = ?, updated_at = ? WHERE id = ?"
+	_, err := s.db.Exec(query, status, time.Now().Unix(), id)
+	return err
+}