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package moe.nea.ledger.utils.telemetry
import com.google.gson.JsonObject
class Context(val data: MutableMap<String, ContextValue> = mutableMapOf()) : ContextValue.Collatable<Context> {
inline fun <reified T : ContextValue> getT(key: String): T? {
return get(key) as? T
}
fun get(key: String): ContextValue? {
return data[key]
}
fun add(key: String, value: ContextValue) {
data[key] = value
}
@Suppress("NOTHING_TO_INLINE")
private inline fun <T : ContextValue.Collatable<T>> cope(
left: ContextValue.Collatable<T>,
right: ContextValue
): ContextValue {
return try {
left.combineWith(right as T)
} catch (ex: Exception) {
// TODO: cope with this better
right
}
}
override fun combineWith(overrides: Context): Context {
val copy = data.toMutableMap()
for ((key, overrideValue) in overrides.data) {
copy.merge(key, overrideValue) { old, new ->
if (old is ContextValue.Collatable<*>) {
cope(old, new)
} else {
new
}
}
}
return Context(copy)
}
override fun actualize(): Context {
return this
}
override fun serialize(): JsonObject {
val obj = JsonObject()
data.forEach { (k, v) ->
obj.add(k, v.serialize())
}
return obj
}
}
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