//
//  PlotSpec.swift
//  Metrika
//
//  Author:  Simon-Pierre Boucher
//  Contact: contact@spboucher.ai
//  Copyright © 2026 Simon-Pierre Boucher. All rights reserved.
//

import ZQData

/// Backend-neutral plot description produced by `graph` commands. The app
/// layer renders it with Swift Charts, or the Metal point renderer once
/// the series crosses ~1M points (CLAUDE.md §7).
public struct ZQPlotSpec: Equatable, Sendable {
    public enum Kind: String, Equatable, Sendable {
        case scatter, line, histogram, kdensity
    }

    public struct Series: Equatable, Sendable {
        public var label: String
        public var x: [Double]
        public var y: [Double]

        public init(label: String, x: [Double], y: [Double]) {
            self.label = label
            self.x = x
            self.y = y
        }
    }

    public var kind: Kind
    public var xLabel: String
    public var yLabel: String
    public var series: [Series]

    public init(kind: Kind, xLabel: String, yLabel: String, series: [Series]) {
        self.kind = kind
        self.xLabel = xLabel
        self.yLabel = yLabel
        self.series = series
    }
}