First bits of pure lustre-javascript for user login session

server/src/web/components/answerlist.gleam

@@ -0,0 +1,182 @@
+import gleam/erlang/process.{type Subject}
+import gleam/int
+import gleam/list
+import gleam/option.{type Option, None, Some}
+import gleam/otp/actor.{type Started}
+import lustre
+import lustre/attribute.{class}
+import lustre/effect.{type Effect}
+import lustre/element.{type Element}
+import lustre/element/html
+import shared/message.{type NotifyClient, type NotifyServer}
+import web/components/shared.{
+  step_prompt, view_input, view_named_input, view_named_keyed_input, view_yes_no,
+}
+
+pub fn component() -> lustre.App(
+  #(List(#(Int, String)), message.ClientsServer),
+  Model,
+  Msg,
+) {
+  lustre.application(init, update, view)
+}
+
+pub opaque type Model {
+  Model(
+    state: Msg,
+    answers: List(#(Int, #(String, String))),
+    handler: Started(Subject(NotifyServer)),
+  )
+}
+
+fn init(
+  start_args: #(List(#(Int, String)), message.ClientsServer),
+) -> #(Model, Effect(Msg)) {
+  let #(answers, handlers) = start_args
+  let #(_registry, handler) = handlers
+
+  // Convert a "question number -> question text" array to
+  // "question number" -> #("question text", "users answer" array
+  // with blank user answers.
+  let initial_array =
+    list.filter(answers, fn(x) {
+      let #(i, _) = x
+      i <= 14 && i >= 0
+    })
+    |> list.map(fn(x) {
+      let #(a, b) = x
+      #(a, #(b, ""))
+    })
+
+  #(Model(Initial, initial_array, handler), effect.none())
+}
+
+pub opaque type Msg {
+  Initial
+  SharedMessage(message: NotifyClient)
+  ReceiveName(message: String)
+  AcceptName(accept: Option(String))
+  GiveQuestion(name: String, question: String)
+  GiveAnswer(name: String, question: Int, answer: String)
+}
+
+fn update(model: Model, msg: Msg) -> #(Model, Effect(Msg)) {
+  case msg {
+    Initial | SharedMessage(_) -> #(model, effect.none())
+    AcceptName(None) -> #(Model(Initial, [], model.handler), effect.none())
+    AcceptName(Some(name)) -> {
+      #(Model(..model, state: GiveQuestion(name, "")), effect.none())
+    }
+    GiveQuestion(name, question) ->
+      case int.parse(question) {
+        Ok(question) if question >= 1 && question <= 14 -> #(
+          Model(..model, state: GiveAnswer(name:, question:, answer: "")),
+          effect.none(),
+        )
+        _ -> #(
+          Model(..model, state: GiveQuestion(name:, question: "")),
+          effect.none(),
+        )
+      }
+    GiveAnswer(name, question, answer) -> {
+      actor.send(
+        model.handler.data,
+        message.GiveSingleAnswer(name:, question:, answer:),
+      )
+      let new_value = case list.key_find(model.answers, question) {
+        Ok(pair) -> {
+          let #(a, _) = pair
+          #(a, answer)
+        }
+        Error(_) -> #("", answer)
+      }
+      #(
+        Model(
+          ..model,
+          state: GiveQuestion(name, ""),
+          answers: list.key_set(model.answers, question, new_value),
+        ),
+        effect.none(),
+      )
+    }
+    ReceiveName(_) -> #(Model(..model, state: msg), effect.none())
+  }
+}
+
+fn view(model: Model) -> Element(Msg) {
+  element.fragment([
+    html.div([attribute.class("terminal-prompt")], [
+      case model.state {
+        Initial ->
+          step_prompt(
+            "Hello stranger. To join the quiz, I need to know your name",
+            fn() { view_input(ReceiveName) },
+          )
+        ReceiveName(name) ->
+          step_prompt(
+            "Your name is " <> name <> "? Are you absolutely sure???",
+            fn() { view_yes_no(name, AcceptName) },
+          )
+        GiveQuestion(name, _) ->
+          step_prompt(
+            "Enter the number of the question you want to answer",
+            fn() { view_named_input(name, GiveQuestion) },
+          )
+        GiveAnswer(name, question, _) ->
+          step_prompt(
+            "Enter the answer to question number " <> int.to_string(question),
+            fn() { view_named_keyed_input(question, name, GiveAnswer) },
+          )
+        _ -> html.h3([], [html.text("Waiting for next question")])
+      },
+    ]),
+    html.div([class("terminal-header")], [
+      html.div([class("terminal-status")], [
+        html.span([class("status-blink")], [html.text("●")]),
+        html.text(" SYSTEM READY"),
+        html.span([class("ml-8")], [
+          case model.state {
+            Initial -> html.text("STATUS: Please input your name")
+            ReceiveName(_) -> html.text("STATUS: Please validate your name")
+            GiveQuestion(_, _) -> html.text("STATUS: Pick question to answer")
+            GiveAnswer(_, _, _) -> html.text("STATUS: Give your answer")
+            _ -> html.text("STATUS: Waiting for next question")
+          },
+        ]),
+      ]),
+    ]),
+    terminal_section(model.answers, "[ACTIVE TRANSMISSIONS]", fn(answer) {
+      content_cell(answer)
+    }),
+  ])
+}
+
+fn terminal_section(
+  answers: List(#(Int, #(String, String))),
+  header: String,
+  extract: fn(#(Int, #(String, String))) -> Element(Msg),
+) {
+  html.div([attribute.class("terminal-section")], [
+    html.div([attribute.class("terminal-label mb-4")], [
+      html.text(header),
+    ]),
+    html.div([attribute.class("participants-grid")], list.map(answers, extract)),
+  ])
+}
+
+fn content_cell(answer: #(Int, #(String, String))) -> Element(Msg) {
+  let #(question, #(question_text, answer)) = answer
+  html.div(
+    [
+      class("participant-box"),
+    ],
+    [
+      html.div([class("participant-name")], [
+        html.text("► " <> int.to_string(question) <> " " <> question_text),
+      ]),
+      html.div([class("participant-answer")], [
+        html.text(answer),
+      ]),
+    ],
+  )
+}