Work to simplify model config handling

Keep a direct reference to a provider.ModelConfig in TUI's AppModel,
rather than the names of the provider and model

pkg/tui/views/chat/view.go

@@ -261,7 +261,7 @@ func (m *Model) conversationMessagesView() string {
 		heading := m.renderMessageHeading(-1, &conversation.Message{
 			Role: api.MessageRoleAssistant,
 			Metadata: conversation.MessageMeta{
-				GenerationModel: &m.App.Model,
+				GenerationModel: &m.App.Model.Model,
 			},
 		})
 		sb.WriteString(heading)

pkg/tui/views/settings/settings.go

@@ -3,6 +3,7 @@ package settings
 import (
 	"strings"
 
+	"git.mlow.ca/mlow/lmcli/pkg/provider"
 	"git.mlow.ca/mlow/lmcli/pkg/tui/bubbles/list"
 	"git.mlow.ca/mlow/lmcli/pkg/tui/model"
 	"git.mlow.ca/mlow/lmcli/pkg/tui/shared"
@@ -21,11 +22,6 @@ type Model struct {
 	height    int
 }
 
-type modelOpt struct {
-	provider string
-	model    string
-}
-
 const (
 	modelListId int = iota + 1
 )
@@ -72,9 +68,8 @@ func (m *Model) Update(msg tea.Msg) (shared.ViewModel, tea.Cmd) {
 	case list.MsgOptionSelected:
 		switch msg.ID {
 		case modelListId:
-			if modelOpt, ok := msg.Option.Value.(modelOpt); ok {
-				m.App.Model = modelOpt.model
-				m.App.ProviderName = modelOpt.provider
+			if modelConfig, ok := msg.Option.Value.(provider.ModelConfig); ok {
+				m.App.Model = modelConfig
 			}
 			return m, shared.ChangeView(m.prevView)
 		}
@@ -103,10 +98,10 @@ func (m *Model) getModelOptions() []list.OptionGroup {
 		group := list.OptionGroup{
 			Name: providerLabel,
 		}
-		for _, model := range p.Models() {
+		for _, model := range m.App.Ctx.GetProviderModels(p) {
 			group.Options = append(group.Options, list.Option{
-				Label: model.Name,
-				Value: modelOpt{provider, model.Name},
+				Label: model.Model,
+				Value: model,
 			})
 		}
 		modelOpts = append(modelOpts, group)