<commit_before>import Foundation
import NIO
import GraphQL

public struct Connection<Node : Encodable> : Encodable {
    let edges: [Edge<Node>]
    let pageInfo: PageInfo
}

@available(OSX 10.15, *)
public extension Connection where Node : Identifiable, Node.ID : LosslessStringConvertible {
    static func id(_ cursor: String) -> Node.ID? {
        cursor.base64Decoded().flatMap({ Node.ID($0) })
    }
    
    static func cursor(_ node: Node) -> String {
        node.id.description.base64Encoded()!
    }
}

@available(OSX 10.15, *)
public extension EventLoopFuture where Value : Sequence, Value.Element : Encodable & Identifiable, Value.Element.ID : LosslessStringConvertible {
    func connection(from arguments: Paginatable) -> EventLoopFuture<Connection<Value.Element>> {
        connection(from: arguments, makeCursor: Connection<Value.Element>.cursor)
    }
    
    func connection(from arguments: ForwardPaginatable) -> EventLoopFuture<Connection<Value.Element>> {
        connection(from: arguments, makeCursor: Connection<Value.Element>.cursor)
    }
    
    func connection(from arguments: BackwardPaginatable) -> EventLoopFuture<Connection<Value.Element>> {
        connection(from: arguments, makeCursor: Connection<Value.Element>.cursor)
    }
}

public extension EventLoopFuture where Value: Sequence, Value.Element: Encodable {
    func connection(from arguments: Paginatable, makeCursor: @escaping (Value.Element) -> String) -> EventLoopFuture<Connection<Value.Element>> {
        flatMapThrowing { value in
            try value.connection(from: arguments, makeCursor: makeCursor)
        }
    }
    
    func connection(from arguments: ForwardPaginatable, makeCursor: @escaping (Value.Element) -> String) -> EventLoopFuture<Connection<Value.Element>> {
        flatMapThrowing { value in
            try value.connection(from: arguments, makeCursor: makeCursor)
        }
    }
    
    func connection(from arguments: BackwardPaginatable, makeCursor: @escaping (Value.Element) -> String) -> EventLoopFuture<Connection<Value.Element>> {
        flatMapThrowing { value in
            try value.connection(from: arguments, makeCursor: makeCursor)
        }
    }
}

@available(OSX 10.15, *)
public extension Sequence where Element : Encodable & Identifiable, Element.ID : LosslessStringConvertible {
    func connection(from arguments: Paginatable) throws -> Connection<Element> {
        try connection(from: arguments, makeCursor: Connection<Element>.cursor)
    }
    
    func connection(from arguments: ForwardPaginatable) throws -> Connection<Element> {
        try connection(from: arguments, makeCursor: Connection<Element>.cursor)
    }
    
    func connection(from arguments: BackwardPaginatable) throws -> Connection<Element> {
        try connection(from: arguments, makeCursor: Connection<Element>.cursor)
    }
}

public extension Sequence where Element : Encodable {
    func connection(from arguments: Paginatable, makeCursor: @escaping (Element) -> String) throws -> Connection<Element> {
        try connect(to: Array(self), arguments: PaginationArguments(arguments), makeCursor: makeCursor)
    }
    
    func connection(from arguments: ForwardPaginatable, makeCursor: @escaping (Element) -> String) throws -> Connection<Element> {
        try connect(to: Array(self), arguments: PaginationArguments(arguments), makeCursor: makeCursor)
    }
    
    func connection(from arguments: BackwardPaginatable, makeCursor: @escaping (Element) -> String) throws -> Connection<Element> {
        try connect(to: Array(self), arguments: PaginationArguments(arguments), makeCursor: makeCursor)
    }
}

func connect<Node>(
    to elements: [Node],
    arguments: PaginationArguments,
    makeCursor: @escaping (Node) -> String
) throws -> Connection<Node> where Node : Encodable {
    let edges = elements.map { element in
        Edge<Node>(node: element, cursor: makeCursor(element))
    }
    
    let cursorEdges = slicingCursor(edges: edges, arguments: arguments)
    let countEdges = try slicingCount(edges: cursorEdges, arguments: arguments)<commit_msg>change cursor generation to throwing<commit_after>import Foundation
import NIO
import GraphQL

public struct Connection<Node : Encodable> : Encodable {
    let edges: [Edge<Node>]
    let pageInfo: PageInfo
}

@available(OSX 10.15, *)
public extension Connection where Node : Identifiable, Node.ID : LosslessStringConvertible {
    static func id(_ cursor: String) -> Node.ID? {
        cursor.base64Decoded().flatMap({ Node.ID($0) })
    }
    
    static func cursor(_ node: Node) -> String {
        node.id.description.base64Encoded()!
    }
}

@available(OSX 10.15, *)
public extension EventLoopFuture where Value : Sequence, Value.Element : Encodable & Identifiable, Value.Element.ID : LosslessStringConvertible {
    func connection(from arguments: Paginatable) -> EventLoopFuture<Connection<Value.Element>> {
        connection(from: arguments, makeCursor: Connection<Value.Element>.cursor)
    }
    
    func connection(from arguments: ForwardPaginatable) -> EventLoopFuture<Connection<Value.Element>> {
        connection(from: arguments, makeCursor: Connection<Value.Element>.cursor)
    }
    
    func connection(from arguments: BackwardPaginatable) -> EventLoopFuture<Connection<Value.Element>> {
        connection(from: arguments, makeCursor: Connection<Value.Element>.cursor)
    }
}

public extension EventLoopFuture where Value: Sequence, Value.Element: Encodable {
    func connection(from arguments: Paginatable, makeCursor: @escaping (Value.Element) throws -> String) -> EventLoopFuture<Connection<Value.Element>> {
        flatMapThrowing { value in
            try value.connection(from: arguments, makeCursor: makeCursor)
        }
    }
    
    func connection(from arguments: ForwardPaginatable, makeCursor: @escaping (Value.Element) throws -> String) -> EventLoopFuture<Connection<Value.Element>> {
        flatMapThrowing { value in
            try value.connection(from: arguments, makeCursor: makeCursor)
        }
    }
    
    func connection(from arguments: BackwardPaginatable, makeCursor: @escaping (Value.Element) throws -> String) -> EventLoopFuture<Connection<Value.Element>> {
        flatMapThrowing { value in
            try value.connection(from: arguments, makeCursor: makeCursor)
        }
    }
}

@available(OSX 10.15, *)
public extension Sequence where Element : Encodable & Identifiable, Element.ID : LosslessStringConvertible {
    func connection(from arguments: Paginatable) throws -> Connection<Element> {
        try connection(from: arguments, makeCursor: Connection<Element>.cursor)
    }
    
    func connection(from arguments: ForwardPaginatable) throws -> Connection<Element> {
        try connection(from: arguments, makeCursor: Connection<Element>.cursor)
    }
    
    func connection(from arguments: BackwardPaginatable) throws -> Connection<Element> {
        try connection(from: arguments, makeCursor: Connection<Element>.cursor)
    }
}

public extension Sequence where Element : Encodable {
    func connection(from arguments: Paginatable, makeCursor: @escaping (Element) throws -> String) throws -> Connection<Element> {
        try connect(to: Array(self), arguments: PaginationArguments(arguments), makeCursor: makeCursor)
    }
    
    func connection(from arguments: ForwardPaginatable, makeCursor: @escaping (Element) throws -> String) throws -> Connection<Element> {
        try connect(to: Array(self), arguments: PaginationArguments(arguments), makeCursor: makeCursor)
    }
    
    func connection(from arguments: BackwardPaginatable, makeCursor: @escaping (Element) throws -> String) throws -> Connection<Element> {
        try connect(to: Array(self), arguments: PaginationArguments(arguments), makeCursor: makeCursor)
    }
}

func connect<Node>(
    to elements: [Node],
    arguments: PaginationArguments,
    makeCursor: @escaping (Node) throws -> String
) throws -> Connection<Node> where Node : Encodable {
    let edges = try elements.map { element in
        Edge<Node>(node: element, cursor: try makeCursor(element))
    }
    
    let cursorEdges = slicingCursor(edges: edges, arguments: arguments)
    let countEdges = try slicingCount(edges: cursorEdges, arguments: arguments)
{'fraction_non_alphanumeric': 0.1029980657640232, 'fraction_numerical': 0.004110251450676982, 'mean_word_length': 4.026123936816525, 'pattern_counts': {'":': 0, '<': 61, '<?xml version=': 0, '>': 105, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
{'dir': 'git-commits-cleaned', 'id': '4142677', 'n_tokens_mistral': 2242, 'n_tokens_neox': 2170, 'n_words': 572}