wip chat sessions

chat_empty_state.go

@@ -0,0 +1,58 @@
+package mujica
+
+import (
+	"cmp"
+
+	"github.com/egoist/mygo/ui"
+
+	"mujicaui/icons"
+)
+
+// ChatEmptyKind is why a chat view is empty. The zero value is ChatEmptyNew.
+type ChatEmptyKind int
+
+const (
+	// ChatEmptyNew: a new conversation with no messages.
+	ChatEmptyNew ChatEmptyKind = iota
+	// ChatEmptyNoResults: a conversation search matched nothing.
+	ChatEmptyNoResults
+	// ChatEmptyOffline: the connection is down.
+	ChatEmptyOffline
+)
+
+// ChatEmptyStateOptions configure a ChatEmptyState; empty texts use the kind's built-in copy.
+type ChatEmptyStateOptions struct {
+	Kind ChatEmptyKind
+	// Query, for ChatEmptyNoResults, is named in the description.
+	Query       string
+	Title       string
+	Description string
+	// Action replaces the kind's button text: Start, Clear search or Retry.
+	Action string
+}
+
+// ChatEmptyState explains an empty chat (new, no results, offline) and offers the next step.
+func ChatEmptyState(c *ui.Context, opts ChatEmptyStateOptions) EmptyStateResult {
+	switch opts.Kind {
+	case ChatEmptyNew:
+		return EmptyState(c, EmptyStateOptions{
+			Title:       cmp.Or(opts.Title, msg(c, "chat_empty_state.new.title")),
+			Description: cmp.Or(opts.Description, msg(c, "chat_empty_state.new.description")),
+			Icon:        icons.Must("star"),
+			Action:      cmp.Or(opts.Action, msg(c, "chat_empty_state.new.action")),
+		})
+	case ChatEmptyNoResults:
+		return EmptyState(c, EmptyStateOptions{
+			Kind: EmptyNoResults, Query: opts.Query, Title: opts.Title, Description: opts.Description,
+			Action: cmp.Or(opts.Action, msg(c, "chat_empty_state.no_results.action")),
+		})
+	case ChatEmptyOffline:
+		return EmptyState(c, EmptyStateOptions{
+			Title:       cmp.Or(opts.Title, msg(c, "chat_empty_state.offline.title")),
+			Description: cmp.Or(opts.Description, msg(c, "chat_empty_state.offline.description")),
+			Icon:        icons.Must("wifi-off"),
+			Action:      cmp.Or(opts.Action, msg(c, "chat_empty_state.offline.action")),
+		})
+	}
+	panic("mujica: ChatEmptyState Kind out of range")
+}