large rewrite to make mize run on every platform

src/core/instance/mod.rs

@@ -0,0 +1,71 @@
+use std::collections::HashMap;
+use std::fs::create_dir;
+use log::{trace, debug, info, warn, error};
+use uuid::Uuid;
+use std::fs::File;
+use colored::Colorize;
+use std::path::Path;
+
+use crate::error::{MizeError, MizeResult, IntoMizeResult, MizeResultTrait};
+use crate::instance::store::Store;
+use crate::instance::connection::Connection;
+use crate::id::MizeId;
+use crate::instance::subscription::Subscription;
+use crate::item::{Item, ItemData};
+use crate::memstore::MemStore;
+
+pub mod connection;
+pub mod store;
+pub mod subscription;
+
+static MSG_CHANNEL_SIZE: usize = 200;
+
+/// The Instance type is the heart of the mize system
+pub struct Instance<S: Store> {
+    // question vec of stores???
+    // would mean replication logic and such things is handeled by the instance
+    // i think it would be better thogh to then implement a ReplicatedStore
+    store: S,
+    peers: Vec<Box<dyn Connection>>,
+    subs: HashMap<MizeId, Subscription>
+}
+
+/*
+pub enum RealmId {
+    Uuid(Uuid),
+    Local(Vec<String>),
+    Tld(Vec<String>),
+}
+*/
+
+
+impl<S: Store> Instance<S> {
+    // new() opens a
+    pub async fn new() -> MizeResult<Instance<MemStore>> {
+        trace!("[ {} ] Instance::new()", "CALL".yellow());
+
+        let memstore = MemStore::new();
+        let instance = Instance {store: memstore, peers: Vec::new(), subs: HashMap::new()};
+
+        // platform specific init code
+        // TODO
+
+        return Ok(instance);
+    }
+
+    pub fn new_item(self) -> MizeResult<Item<S>> {
+        let id = self.store.new_id()?;
+        return Ok(Item {id, instance: self});
+    }
+
+    pub fn get<I: Into<MizeId>>(self, id: I) -> MizeResult<Item<S>> {
+        return Ok(Item {id: id.into(), instance: self});
+    }
+
+    pub fn set<I: Into<MizeId>, V: Into<ItemData>>(self, id: I, value: V) -> MizeResult<()> {
+        self.store.set(id.into(), value)
+    }
+
+}
+
+