import Foundation

public struct RDEPUBCFIRange: Codable, Equatable, Hashable {
    public var parent: RDEPUBCFI?
    public var start: RDEPUBCFI
    public var end: RDEPUBCFI

    /// Always computed from components — no stale cached value risk.
    public var rawValue: String {
        RDEPUBCFISerializer.serializeRange(self)
    }

    /// Initialize from components. The `rawValue` parameter is ignored — rawValue is always
    /// computed from the components. To parse a CFI range string, use `RDEPUBCFIParser.parseRange(_:)`.
    public init(rawValue: String = "", parent: RDEPUBCFI? = nil, start: RDEPUBCFI, end: RDEPUBCFI) {
        self.parent = parent
        self.start = start
        self.end = end
    }

    public init(from decoder: Decoder) throws {
        let container = try decoder.singleValueContainer()
        let rawValue = try container.decode(String.self)
        let parsed = try RDEPUBCFIParser.parseRange(rawValue)
        self.parent = parsed.parent
        self.start = parsed.start
        self.end = parsed.end
    }

    public func encode(to encoder: Encoder) throws {
        var container = encoder.singleValueContainer()
        try container.encode(rawValue)
    }
}