import Foundation

/// One row of `milestone list`, with progress counts.
nonisolated struct Milestone: Decodable, Sendable, Hashable, Identifiable {
    let title: String
    let description: String?
    let due: String?
    let state: String
    /// True for a milestone the repository sees through its org
    /// (v1.19.0). The repository cannot close or reopen it; `org
    /// milestone` does. Absent on the wire for a repository row and on
    /// older servers.
    let org: Bool
    let open: Int
    let closed: Int

    var id: String { title }

    private enum CodingKeys: String, CodingKey {
        case title, description, due, state, org, open, closed
    }

    init(from decoder: Decoder) throws {
        let c = try decoder.container(keyedBy: CodingKeys.self)
        title = try c.decode(String.self, forKey: .title)
        description = try c.decodeIfPresent(String.self, forKey: .description)
        due = try c.decodeIfPresent(String.self, forKey: .due)
        state = try c.decode(String.self, forKey: .state)
        org = try c.decodeIfPresent(Bool.self, forKey: .org) ?? false
        open = try c.decode(Int.self, forKey: .open)
        closed = try c.decode(Int.self, forKey: .closed)
    }
}