removed cli for the good

src/treevault.gleam

@@ -3,35 +3,36 @@ import forest
 import gleam/bit_array
 import gleam/bytes_tree
 import gleam/dict
-import gleam/erlang
 import gleam/erlang/process
+import gleam/int
 import gleam/io
-import gleam/list
 import gleam/option
 import gleam/otp/actor
-import gleam/result
 import gleam/string
 import gleam_community/ansi
 import glisten
 import query
 import query_error
 import spinner
-import tree_events
 
 pub fn main() {
-  let forest = init("./treevault.json")
-
-  io.println(
-    "Hello from Treevault! 🌳\n
-    To exit gracefully, use \"exit\".
-    To list available commands, use \"help\".
-    ",
-  )
-  read_next(forest)
+  init("./treevault.json")
+  process.sleep_forever()
 }
 
 pub fn init(config_path) {
-  let config = config.load(config_path) |> io.debug
+  io.println("🌳 Hello from Treevault! 🌳")
+  let spinner =
+    spinner.new("Loading configuration file...")
+    |> spinner.with_colour(ansi.pink)
+    |> spinner.start
+  let config = config.load(config_path)
+  spinner |> spinner.stop
+
+  let spinner =
+    spinner.new("Loading trees...")
+    |> spinner.with_colour(ansi.pink)
+    |> spinner.start
   let forest = case forest.load(config.snapshots_path, config.forest) {
     Error(err) -> {
       let reason = err |> string.inspect
@@ -39,7 +40,15 @@ pub fn init(config_path) {
     }
     Ok(forest) -> forest
   }
+  spinner |> spinner.stop
 
+  forest |> serve(config.port)
+  io.println(
+    "All set! Listening on port " <> config.port |> int.to_string <> ".",
+  )
+}
+
+fn serve(forest: forest.Forest, port: Int) {
   let assert Ok(_) =
     glisten.handler(fn(_conn) { #(Nil, option.None) }, fn(msg, state, conn) {
       let assert glisten.Packet(msg) = msg
@@ -67,7 +76,7 @@ pub fn init(config_path) {
       }
       actor.continue(state)
     })
-    |> glisten.serve(config.port)
+    |> glisten.serve(port)
 
   forest
 }
@@ -85,79 +94,3 @@ fn run_query(forest: forest.Forest, root, evt) {
     }
   }
 }
-
-fn read_next(forest) {
-  let command = erlang.get_line("> ")
-  case command {
-    Error(err) -> {
-      err |> string.inspect |> io.println
-      read_next(forest)
-    }
-
-    Ok(term) -> {
-      let term = term |> string.drop_end(1)
-      case term {
-        "exit" -> {
-          graceful(forest)
-        }
-        "help" -> {
-          "Available commands:" |> io.println
-          "help" |> io.println
-          "exit" |> io.println
-          "get <path>" |> io.println
-          "set <path> <data>" |> io.println
-          "trees" |> io.println
-
-          read_next(forest)
-        }
-        "trees" -> {
-          forest.trees |> dict.keys |> list.each(io.println)
-          read_next(forest)
-        }
-        _ -> {
-          case query.parse(term) {
-            Error(_) -> {
-              "Unknown command" |> io.println
-            }
-            Ok(#(root, evt)) -> {
-              let res = run_query(forest, root, evt)
-              res |> result.unwrap_both |> io.println
-            }
-          }
-
-          read_next(forest)
-        }
-      }
-    }
-  }
-}
-
-fn graceful(forest: forest.Forest) {
-  let spinner =
-    spinner.new("Shutting down...")
-    |> spinner.with_colour(ansi.pink)
-    |> spinner.start
-
-  forest.trees
-  |> dict.to_list
-  |> list.each(fn(tree) {
-    let ps = tree.1.1
-    let path = tree.1.0
-
-    { "Exiting: " <> tree.0 } |> io.println
-    let res =
-      ps
-      |> process.call_forever(fn(actor) { tree_events.Snapshot(path, actor) })
-    case res {
-      Ok(ok) -> ok
-      Error(err) -> err
-    }
-    |> io.println
-
-    ps |> process.send(tree_events.Shutdown)
-  })
-
-  process.sleep(1000)
-  "Bye" |> io.println
-  spinner |> spinner.stop
-}