package redis

import "GoNavi-Wails/internal/connection"

// RedisValue represents a Redis value with its type and metadata
type RedisValue struct {
	Type   string      `json:"type"`   // string, hash, list, set, zset, stream
	TTL    int64       `json:"ttl"`    // TTL in seconds, -1 means no expiry, -2 means key doesn't exist
	Value  interface{} `json:"value"`  // The actual value
	Length int64       `json:"length"` // Length/size of the value
}

// RedisDBInfo represents information about a Redis database
type RedisDBInfo struct {
	Index int   `json:"index"` // Database index (single: 0-15, cluster: logical 0-15)
	Keys  int64 `json:"keys"`  // Number of keys in this database
}

// RedisKeyInfo represents information about a Redis key
type RedisKeyInfo struct {
	Key  string `json:"key"`
	Type string `json:"type"`
	TTL  int64  `json:"ttl"`
}

// RedisScanResult represents the result of a SCAN operation
type RedisScanResult struct {
	Keys   []RedisKeyInfo `json:"keys"`
	Cursor string         `json:"cursor"`
}

// RedisClient defines the interface for Redis operations
type RedisClient interface {
	// Connection management
	Connect(config connection.ConnectionConfig) error
	Close() error
	Ping() error

	// Key operations
	ScanKeys(pattern string, cursor uint64, count int64) (*RedisScanResult, error)
	GetKeyType(key string) (string, error)
	GetTTL(key string) (int64, error)
	SetTTL(key string, ttl int64) error
	DeleteKeys(keys []string) (int64, error)
	RenameKey(oldKey, newKey string) error
	KeyExists(key string) (bool, error)

	// Value operations
	GetValue(key string) (*RedisValue, error)

	// String operations
	GetString(key string) (string, error)
	SetString(key, value string, ttl int64) error

	// Hash operations
	GetHash(key string) (map[string]string, error)
	SetHashField(key, field, value string) error
	DeleteHashField(key string, fields ...string) error

	// List operations
	GetList(key string, start, stop int64) ([]string, error)
	ListPush(key string, values ...string) error
	ListSet(key string, index int64, value string) error

	// Set operations
	GetSet(key string) ([]string, error)
	SetAdd(key string, members ...string) error
	SetRemove(key string, members ...string) error

	// Sorted Set operations
	GetZSet(key string, start, stop int64) ([]ZSetMember, error)
	ZSetAdd(key string, members ...ZSetMember) error
	ZSetRemove(key string, members ...string) error

	// Stream operations
	GetStream(key, start, stop string, count int64) ([]StreamEntry, error)
	StreamAdd(key string, fields map[string]string, id string) (string, error)
	StreamDelete(key string, ids ...string) (int64, error)

	// Command execution
	ExecuteCommand(args []string) (interface{}, error)

	// Server information
	GetServerInfo() (map[string]string, error)
	GetDatabases() ([]RedisDBInfo, error)
	SelectDB(index int) error
	GetCurrentDB() int
	FlushDB() error
}

// ZSetMember represents a member in a sorted set
type ZSetMember struct {
	Member string  `json:"member"`
	Score  float64 `json:"score"`
}

// StreamEntry represents a single stream message
type StreamEntry struct {
	ID     string            `json:"id"`
	Fields map[string]string `json:"fields"`
}