group: xiang.helper
type: process
entries:
  # Array operations
  - name: ArrayPluck
    desc: "[Deprecated: use utils.arr.Pluck] Merge multiple record sets into one by plucking specified columns"
    args:
      - name: columns
        type: array
        required: true
        desc: Array of column names to pluck
      - name: data
        type: object
        required: true
        desc: Map of column names to value arrays
    return:
      type: array
      desc: Merged array of records

  - name: ArraySplit
    desc: "[Deprecated: use utils.arr.Split] Split an array of records into columns and values"
    args:
      - name: records
        type: array
        required: true
        desc: Array of record objects
    return:
      type: object
      desc: "Object with columns (string[]) and values (any[][])"

  - name: ArrayColumn
    desc: "[Deprecated: use utils.arr.Column] Extract values of a specified field from an array of records"
    args:
      - name: records
        type: array
        required: true
        desc: Array of record objects
      - name: name
        type: string
        required: true
        desc: Field name to extract
    return:
      type: array
      desc: Array of field values

  - name: ArrayKeep
    desc: "[Deprecated: use utils.arr.Keep] Keep only specified keys in each record"
    args:
      - name: records
        type: array
        required: true
        desc: Array of record objects
      - name: columns
        type: array
        required: true
        desc: Array of key names to keep
    return:
      type: array
      desc: Filtered array of records

  - name: ArrayTree
    desc: "[Deprecated: use utils.arr.Tree] Convert a flat array of records into a tree structure"
    args:
      - name: records
        type: array
        required: true
        desc: Array of record objects
      - name: setting
        type: object
        required: true
        desc: "Tree settings: {primary, parent, children, etc.}"
    return:
      type: array
      desc: Tree-structured array

  - name: ArrayUnique
    desc: "[Deprecated: use utils.arr.Unique] Remove duplicate values from an array"
    args:
      - name: array
        type: array
        required: true
        desc: Array to deduplicate
    return:
      type: array
      desc: Array with duplicates removed

  - name: ArrayMapSet
    desc: "[Deprecated: use utils.arr.MapSet] Set a field value on every map in an array"
    args:
      - name: records
        type: array
        required: true
        desc: Array of map objects
      - name: key
        type: string
        required: true
        desc: Key to set in each map
      - name: value
        type: any
        required: true
        desc: Value to set
    return:
      type: array
      desc: Modified array

  - name: ArrayIndexes
    desc: "[Deprecated: use utils.arr.Indexes] Return the index numbers of an array"
    args:
      - name: array
        type: array
        required: true
        desc: Input array
    return:
      type: array
      desc: Array of integer indexes

  - name: ArrayGet
    desc: "[Deprecated: use utils.arr.Get] Get an element at a specified index from an array"
    args:
      - name: array
        type: array
        required: true
        desc: Input array
      - name: index
        type: number
        required: true
        desc: Index to retrieve
    return:
      type: any
      desc: Element at the given index, or null if out of range

  # Map operations
  - name: MapKeys
    desc: "[Deprecated: use utils.map.Keys] Return all keys of a map"
    args:
      - name: record
        type: object
        required: true
        desc: Input map
    return:
      type: array
      desc: Array of key strings

  - name: MapValues
    desc: "[Deprecated: use utils.map.Values] Return all values of a map"
    args:
      - name: record
        type: object
        required: true
        desc: Input map
    return:
      type: array
      desc: Array of values

  - name: MapGet
    desc: "[Deprecated: use utils.map.Get] Get a value by key from a map (supports dot notation)"
    args:
      - name: record
        type: object
        required: true
        desc: Input map
      - name: key
        type: string
        required: true
        desc: Key name (supports dot notation for nested access)
    return:
      type: any
      desc: Value at the given key

  - name: MapSet
    desc: "[Deprecated: use utils.map.Set] Set a key-value pair in a map (supports dot notation)"
    args:
      - name: record
        type: object
        required: true
        desc: Input map
      - name: key
        type: string
        required: true
        desc: Key name (supports dot notation for nested access)
      - name: value
        type: any
        required: true
        desc: Value to set
    return:
      type: object
      desc: Modified map

  - name: MapDel
    desc: "[Deprecated: use utils.map.Del] Delete a key from a map"
    args:
      - name: record
        type: object
        required: true
        desc: Input map
      - name: key
        type: string
        required: true
        desc: Key name to delete
    return:
      type: object
      desc: Modified map

  - name: MapMultiDel
    desc: "[Deprecated: use utils.map.DelMany] Delete multiple keys from a map"
    args:
      - name: record
        type: object
        required: true
        desc: Input map
      - name: keys
        type: string
        required: true
        desc: Keys to delete (variadic)
    return:
      type: object
      desc: Modified map

  - name: MapToArray
    desc: "[Deprecated: use utils.map.Array] Convert a map to an array of key-value objects"
    args:
      - name: record
        type: object
        required: true
        desc: Input map
    return:
      type: array
      desc: "Array of {key, value} objects"

  # String operations
  - name: StrConcat
    desc: "[Deprecated: use utils.str.Concat] Concatenate multiple values into a string"
    args:
      - name: values
        type: any
        required: true
        desc: Values to concatenate (variadic, minimum 2)
    return:
      type: string
      desc: Concatenated string

  - name: HexToString
    desc: "[Deprecated: use utils.str.Hex] Encode a string or byte array to hexadecimal"
    args:
      - name: input
        type: any
        required: true
        desc: String or byte array to encode
    return:
      type: string
      desc: Hex-encoded string

  # Captcha
  - name: Captcha
    desc: "[Deprecated: use utils.captcha.Make] Generate a captcha image/audio"
    args:
      - name: params
        type: any
        required: true
        desc: "URL-style params with width, height, length, type, lang, background"
    return:
      type: object
      desc: "Object with id and content (base64 image/audio data)"

  - name: CaptchaValidate
    desc: "[Deprecated: use utils.captcha.Verify] Validate a captcha code"
    args:
      - name: id
        type: string
        required: true
        desc: Captcha ID
      - name: code
        type: string
        required: true
        desc: User-entered captcha code
    return:
      type: bool
      desc: True if valid; throws exception if invalid

  # Password
  - name: PasswordValidate
    desc: "[Deprecated: use utils.pwd.Verify] Validate a password against a bcrypt hash"
    args:
      - name: password
        type: string
        required: true
        desc: Plain text password
      - name: passwordHash
        type: string
        required: true
        desc: Bcrypt hash to compare against
    return:
      type: bool
      desc: True if password matches; throws exception if invalid

  # JWT
  - name: JwtMake
    desc: "[Deprecated: use utils.jwt.Make] Generate a JWT token"
    args:
      - name: id
        type: number
        required: true
        desc: User ID
      - name: data
        type: object
        required: true
        desc: Custom claims data
      - name: option
        type: object
        required: false
        desc: "Options: {subject, audience, issuer, timeout (seconds), sid, expires_at}"
    return:
      type: object
      desc: "JWT token object with token string and expires_at timestamp"

  - name: JwtValidate
    desc: "[Deprecated: use utils.jwt.Verify] Validate and parse a JWT token"
    args:
      - name: token
        type: string
        required: true
        desc: JWT token string
    return:
      type: object
      desc: "Decoded JWT claims: {id, sid, data, ...standard claims}"

  # Flow control
  - name: For
    desc: "[Deprecated: use utils.flow.For] Execute a process in a loop from start to end"
    args:
      - name: from
        type: number
        required: true
        desc: Start index (inclusive)
      - name: to
        type: number
        required: true
        desc: End index (exclusive)
      - name: process
        type: object
        required: true
        desc: "Process definition: {process: \"name\", args: [\"::key\", \"::value\"]}"
    return:
      type: "null"
      desc: Returns null

  - name: Each
    desc: "[Deprecated: use utils.flow.Each] Iterate over a value (array, map, or integer) and execute a process"
    args:
      - name: data
        type: any
        required: true
        desc: Value to iterate over (array, map, or integer)
      - name: process
        type: object
        required: true
        desc: "Process definition: {process: \"name\", args: [\"::key\", \"::value\"]}"
    return:
      type: "null"
      desc: Returns null

  - name: Case
    desc: "[Deprecated: use utils.flow.Case] Execute the first process whose conditions are met"
    args:
      - name: cases
        type: object
        required: true
        desc: "Case objects (variadic): {when: [{...conditions}], process: \"name\", args: [...]}"
    return:
      type: any
      desc: Return value from the matched process, or null if no match

  - name: IF
    desc: "[Deprecated: use utils.flow.IF] Conditional execution with optional else branch"
    args:
      - name: condition
        type: object
        required: true
        desc: "Primary condition: {when: [{...conditions}], process: \"name\", args: [...]}"
      - name: else
        type: object
        required: false
        desc: "Else condition: {when: [{...conditions}], process: \"name\", args: [...]}"
    return:
      type: any
      desc: Return value from the executed process, or null

  - name: Throw
    desc: "[Deprecated: use utils.flow.Throw] Throw an exception with a message and HTTP status code"
    args:
      - name: message
        type: string
        required: true
        desc: Error message
      - name: code
        type: number
        required: true
        desc: HTTP status code
    return:
      type: void
      desc: Does not return; throws exception

  - name: Return
    desc: "[Deprecated: use utils.flow.Return] Return all arguments as-is"
    args:
      - name: values
        type: any
        required: false
        desc: Values to return (variadic)
    return:
      type: array
      desc: Array of all passed arguments

  # Environment
  - name: EnvGet
    desc: "[Deprecated: use utils.env.Get] Get an environment variable value"
    args:
      - name: name
        type: string
        required: true
        desc: Environment variable name
    return:
      type: string
      desc: Environment variable value

  - name: EnvSet
    desc: "[Deprecated: use utils.env.Set] Set an environment variable"
    args:
      - name: name
        type: string
        required: true
        desc: Environment variable name
      - name: value
        type: string
        required: true
        desc: Value to set
    return:
      type: any
      desc: Error on failure, null on success

  - name: EnvMultiGet
    desc: "[Deprecated: use utils.env.GetMany] Get multiple environment variable values"
    args:
      - name: names
        type: string
        required: true
        desc: Environment variable names (variadic)
    return:
      type: object
      desc: Map of variable names to their values

  - name: EnvMultiSet
    desc: "[Deprecated: use utils.env.SetMany] Set multiple environment variables"
    args:
      - name: envs
        type: object
        required: true
        desc: Map of variable names to values
    return:
      type: any
      desc: Error on failure, null on success

  # Print
  - name: Print
    desc: "[Deprecated: use utils.fmt.Print] Print values to stdout (debug dump)"
    args:
      - name: values
        type: any
        required: true
        desc: Values to print (variadic)
    return:
      type: "null"
      desc: Returns null