use std::collections::HashMap;

use serde::{Deserialize, Serialize};

use crate::NumericValue;

/// A dictionary, where each key corresponds to an enum `name` and each value is the number of occurrences of that enum. Only applicable when `type` is `ENUM`. For fixed-length arrays, this is an array of component-wise occurrences.
#[derive(Serialize, Deserialize, Debug, Clone)]
pub enum Occurrences {
    Int(i32),
    Array(Vec<i32>),
}


/// Statistics about property values.
#[derive(Serialize, Deserialize, Debug, Clone)]
#[serde(rename_all = "camelCase")]
pub struct StatisticsClassProperty {
    /// The minimum property value occurring in the tileset. Only applicable to `SCALAR`, `VECN`, and `MATN` types. This is the minimum of all property values, after the transforms based on the `normalized`, `offset`, and `scale` properties have been applied.
    #[serde(skip_serializing_if = "Option::is_none")]
    pub min: Option<NumericValue>,

    /// The maximum property value occurring in the tileset. Only applicable to `SCALAR`, `VECN`, and `MATN` types. This is the maximum of all property values, after the transforms based on the `normalized`, `offset`, and `scale` properties have been applied.
    #[serde(skip_serializing_if = "Option::is_none")]
    pub max: Option<NumericValue>,

    /// The arithmetic mean of property values occurring in the tileset. Only applicable to `SCALAR`, `VECN`, and `MATN` types. This is the mean of all property values, after the transforms based on the `normalized`, `offset`, and `scale` properties have been applied.
    #[serde(skip_serializing_if = "Option::is_none")]
    pub mean: Option<NumericValue>,

    /// The median of property values occurring in the tileset. Only applicable to `SCALAR`, `VECN`, and `MATN` types. This is the median of all property values, after the transforms based on the `normalized`, `offset`, and `scale` properties have been applied.
    #[serde(skip_serializing_if = "Option::is_none")]
    pub median: Option<NumericValue>,

    /// The standard deviation of property values occurring in the tileset. Only applicable to `SCALAR`, `VECN`, and `MATN` types. This is the standard deviation of all property values, after the transforms based on the `normalized`, `offset`, and `scale` properties have been applied.
    #[serde(skip_serializing_if = "Option::is_none")]
    pub standard_deviation: Option<NumericValue>,

    /// The variance of property values occurring in the tileset. Only applicable to `SCALAR`, `VECN`, and `MATN` types. This is the variance of all property values, after the transforms based on the `normalized`, `offset`, and `scale` properties have been applied.
    #[serde(skip_serializing_if = "Option::is_none")]
    pub variance: Option<NumericValue>,

    /// The sum of property values occurring in the tileset. Only applicable to `SCALAR`, `VECN`, and `MATN` types. This is the sum of all property values, after the transforms based on the `normalized`, `offset`, and `scale` properties have been applied.
    #[serde(skip_serializing_if = "Option::is_none")]
    pub sum: Option<NumericValue>,

    /// A dictionary, where each key corresponds to an enum `name` and each value is the number of occurrences of that enum. Only applicable when `type` is `ENUM`. For fixed-length arrays, this is an array of component-wise occurrences.
    #[serde(skip_serializing_if = "Option::is_none")]
    pub occurrences: Option<HashMap<String, Occurrences>>,
}