mirror of
https://github.com/sst/opencode.git
synced 2025-07-07 16:14:59 +00:00
511 lines
13 KiB
Go
511 lines
13 KiB
Go
package chat
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import (
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"strings"
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"github.com/charmbracelet/bubbles/v2/viewport"
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tea "github.com/charmbracelet/bubbletea/v2"
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"github.com/charmbracelet/lipgloss/v2"
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"github.com/sst/opencode-sdk-go"
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"github.com/sst/opencode/internal/app"
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"github.com/sst/opencode/internal/components/dialog"
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"github.com/sst/opencode/internal/layout"
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"github.com/sst/opencode/internal/styles"
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"github.com/sst/opencode/internal/theme"
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"github.com/sst/opencode/internal/util"
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)
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type MessagesComponent interface {
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tea.Model
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View(width, height int) string
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SetWidth(width int) tea.Cmd
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PageUp() (tea.Model, tea.Cmd)
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PageDown() (tea.Model, tea.Cmd)
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HalfPageUp() (tea.Model, tea.Cmd)
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HalfPageDown() (tea.Model, tea.Cmd)
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First() (tea.Model, tea.Cmd)
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Last() (tea.Model, tea.Cmd)
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Previous() (tea.Model, tea.Cmd)
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Next() (tea.Model, tea.Cmd)
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ToolDetailsVisible() bool
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Selected() string
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}
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type messagesComponent struct {
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width int
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app *app.App
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viewport viewport.Model
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cache *MessageCache
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rendering bool
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showToolDetails bool
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tail bool
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partCount int
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lineCount int
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selectedPart int
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selectedText string
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}
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type renderFinishedMsg struct{}
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type selectedMessagePartChangedMsg struct {
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part int
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}
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type ToggleToolDetailsMsg struct{}
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func (m *messagesComponent) Init() tea.Cmd {
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return tea.Batch(m.viewport.Init())
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}
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func (m *messagesComponent) Selected() string {
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return m.selectedText
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}
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func (m *messagesComponent) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
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var cmds []tea.Cmd
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switch msg := msg.(type) {
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case app.SendMsg:
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m.viewport.GotoBottom()
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m.tail = true
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m.selectedPart = -1
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return m, nil
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case app.OptimisticMessageAddedMsg:
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m.renderView(m.width)
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if m.tail {
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m.viewport.GotoBottom()
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}
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return m, nil
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case dialog.ThemeSelectedMsg:
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m.cache.Clear()
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m.rendering = true
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return m, m.Reload()
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case ToggleToolDetailsMsg:
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m.showToolDetails = !m.showToolDetails
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m.rendering = true
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return m, m.Reload()
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case app.SessionLoadedMsg, app.SessionClearedMsg:
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m.cache.Clear()
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m.tail = true
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m.rendering = true
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return m, m.Reload()
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case renderFinishedMsg:
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m.rendering = false
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if m.tail {
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m.viewport.GotoBottom()
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}
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case selectedMessagePartChangedMsg:
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return m, m.Reload()
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case opencode.EventListResponseEventSessionUpdated:
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if msg.Properties.Info.ID == m.app.Session.ID {
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m.renderView(m.width)
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if m.tail {
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m.viewport.GotoBottom()
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}
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}
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case opencode.EventListResponseEventMessageUpdated:
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if msg.Properties.Info.Metadata.SessionID == m.app.Session.ID {
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m.renderView(m.width)
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if m.tail {
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m.viewport.GotoBottom()
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}
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}
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}
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viewport, cmd := m.viewport.Update(msg)
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m.viewport = viewport
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m.tail = m.viewport.AtBottom()
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cmds = append(cmds, cmd)
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return m, tea.Batch(cmds...)
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}
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func (m *messagesComponent) renderView(width int) {
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measure := util.Measure("messages.renderView")
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defer measure("messageCount", len(m.app.Messages))
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t := theme.CurrentTheme()
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blocks := make([]string, 0)
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m.partCount = 0
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m.lineCount = 0
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orphanedToolCalls := make([]opencode.ToolInvocationPart, 0)
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for _, message := range m.app.Messages {
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var content string
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var cached bool
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switch message.Role {
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case opencode.MessageRoleUser:
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for partIndex, part := range message.Parts {
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switch part := part.AsUnion().(type) {
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case opencode.TextPart:
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remainingParts := message.Parts[partIndex+1:]
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fileParts := make([]opencode.FilePart, 0)
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for _, part := range remainingParts {
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switch part := part.AsUnion().(type) {
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case opencode.FilePart:
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fileParts = append(fileParts, part)
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}
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}
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flexItems := []layout.FlexItem{}
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if len(fileParts) > 0 {
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fileStyle := styles.NewStyle().Background(t.BackgroundElement()).Foreground(t.TextMuted()).Padding(0, 1)
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mediaTypeStyle := styles.NewStyle().Background(t.Secondary()).Foreground(t.BackgroundPanel()).Padding(0, 1)
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for _, filePart := range fileParts {
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mediaType := ""
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switch filePart.MediaType {
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case "text/plain":
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mediaType = "txt"
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case "image/png", "image/jpeg", "image/gif", "image/webp":
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mediaType = "img"
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case "application/pdf":
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mediaType = "pdf"
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}
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flexItems = append(flexItems, layout.FlexItem{
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View: mediaTypeStyle.Render(mediaType) + fileStyle.Render(filePart.Filename),
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})
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}
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}
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bgColor := t.BackgroundPanel()
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files := layout.Render(
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layout.FlexOptions{
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Background: &bgColor,
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Width: width - 6,
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Direction: layout.Row,
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Gap: 3,
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},
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flexItems...,
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)
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key := m.cache.GenerateKey(message.ID, part.Text, width, m.selectedPart == m.partCount, files)
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content, cached = m.cache.Get(key)
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if !cached {
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content = renderText(
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m.app,
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message,
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part.Text,
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m.app.Info.User,
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m.showToolDetails,
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m.partCount == m.selectedPart,
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width,
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files,
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)
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m.cache.Set(key, content)
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}
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if content != "" {
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m = m.updateSelected(content, part.Text)
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blocks = append(blocks, content)
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}
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}
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}
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case opencode.MessageRoleAssistant:
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hasTextPart := false
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for partIndex, p := range message.Parts {
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switch part := p.AsUnion().(type) {
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case opencode.TextPart:
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hasTextPart = true
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finished := message.Metadata.Time.Completed > 0
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remainingParts := message.Parts[partIndex+1:]
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toolCallParts := make([]opencode.ToolInvocationPart, 0)
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// sometimes tool calls happen without an assistant message
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// these should be included in this assistant message as well
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if len(orphanedToolCalls) > 0 {
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toolCallParts = append(toolCallParts, orphanedToolCalls...)
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orphanedToolCalls = make([]opencode.ToolInvocationPart, 0)
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}
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remaining := true
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for _, part := range remainingParts {
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if !remaining {
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break
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}
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switch part := part.AsUnion().(type) {
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case opencode.TextPart:
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// we only want tool calls associated with the current text part.
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// if we hit another text part, we're done.
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remaining = false
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case opencode.ToolInvocationPart:
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toolCallParts = append(toolCallParts, part)
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if part.ToolInvocation.State != "result" {
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// i don't think there's a case where a tool call isn't in result state
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// and the message time is 0, but just in case
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finished = false
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}
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}
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}
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if finished {
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key := m.cache.GenerateKey(message.ID, p.Text, width, m.showToolDetails, m.selectedPart == m.partCount)
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content, cached = m.cache.Get(key)
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if !cached {
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content = renderText(
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m.app,
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message,
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p.Text,
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message.Metadata.Assistant.ModelID,
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m.showToolDetails,
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m.partCount == m.selectedPart,
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width,
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"",
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toolCallParts...,
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)
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m.cache.Set(key, content)
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}
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} else {
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content = renderText(
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m.app,
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message,
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p.Text,
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message.Metadata.Assistant.ModelID,
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m.showToolDetails,
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m.partCount == m.selectedPart,
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width,
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"",
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toolCallParts...,
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)
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}
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if content != "" {
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m = m.updateSelected(content, p.Text)
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blocks = append(blocks, content)
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}
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case opencode.ToolInvocationPart:
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if !m.showToolDetails {
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if !hasTextPart {
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orphanedToolCalls = append(orphanedToolCalls, part)
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}
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continue
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}
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if part.ToolInvocation.State == "result" {
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key := m.cache.GenerateKey(message.ID,
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part.ToolInvocation.ToolCallID,
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m.showToolDetails,
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width,
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m.partCount == m.selectedPart,
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)
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content, cached = m.cache.Get(key)
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if !cached {
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content = renderToolDetails(
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m.app,
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part,
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message.Metadata,
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m.partCount == m.selectedPart,
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width,
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)
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m.cache.Set(key, content)
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}
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} else {
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// if the tool call isn't finished, don't cache
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content = renderToolDetails(
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m.app,
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part,
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message.Metadata,
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m.partCount == m.selectedPart,
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width,
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)
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}
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if content != "" {
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m = m.updateSelected(content, "")
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blocks = append(blocks, content)
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}
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}
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}
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}
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error := ""
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switch err := message.Metadata.Error.AsUnion().(type) {
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case nil:
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case opencode.MessageMetadataErrorMessageOutputLengthError:
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error = "Message output length exceeded"
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case opencode.ProviderAuthError:
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error = err.Data.Message
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case opencode.UnknownError:
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error = err.Data.Message
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}
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if error != "" {
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error = renderContentBlock(
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m.app,
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error,
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false,
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width,
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WithBorderColor(t.Error()),
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)
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blocks = append(blocks, error)
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m.lineCount += lipgloss.Height(error) + 1
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}
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}
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m.viewport.SetContent("\n" + strings.Join(blocks, "\n\n"))
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if m.selectedPart == m.partCount {
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m.viewport.GotoBottom()
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}
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}
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func (m *messagesComponent) updateSelected(content string, selectedText string) *messagesComponent {
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if m.selectedPart == m.partCount {
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m.viewport.SetYOffset(m.lineCount - (m.viewport.Height() / 2) + 4)
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m.selectedText = selectedText
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}
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m.partCount++
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m.lineCount += lipgloss.Height(content) + 1
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return m
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}
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func (m *messagesComponent) header(width int) string {
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if m.app.Session.ID == "" {
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return ""
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}
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t := theme.CurrentTheme()
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base := styles.NewStyle().Foreground(t.Text()).Background(t.Background()).Render
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muted := styles.NewStyle().Foreground(t.TextMuted()).Background(t.Background()).Render
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headerLines := []string{}
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headerLines = append(
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headerLines,
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util.ToMarkdown("# "+m.app.Session.Title, width-6, t.Background()),
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)
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if m.app.Session.Share.URL != "" {
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headerLines = append(headerLines, muted(m.app.Session.Share.URL+" /unshare"))
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} else {
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headerLines = append(headerLines, base("/share")+muted(" to create a shareable link"))
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}
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header := strings.Join(headerLines, "\n")
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header = styles.NewStyle().
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Background(t.Background()).
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Width(width).
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PaddingLeft(2).
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PaddingRight(2).
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BorderLeft(true).
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BorderRight(true).
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BorderBackground(t.Background()).
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BorderForeground(t.BackgroundElement()).
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BorderStyle(lipgloss.ThickBorder()).
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Render(header)
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return "\n" + header + "\n"
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}
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func (m *messagesComponent) View(width, height int) string {
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t := theme.CurrentTheme()
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if m.rendering {
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return lipgloss.Place(
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width,
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height,
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lipgloss.Center,
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lipgloss.Center,
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styles.NewStyle().Background(t.Background()).Render(""),
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styles.WhitespaceStyle(t.Background()),
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)
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}
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header := m.header(width)
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m.viewport.SetWidth(width)
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m.viewport.SetHeight(height - lipgloss.Height(header))
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return styles.NewStyle().
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Background(t.Background()).
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Render(header + "\n" + m.viewport.View())
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}
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func (m *messagesComponent) SetWidth(width int) tea.Cmd {
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if m.width == width {
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return nil
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}
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// Clear cache on resize since width affects rendering
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if m.width != width {
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m.cache.Clear()
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}
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m.width = width
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m.viewport.SetWidth(width)
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m.renderView(width)
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return nil
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}
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func (m *messagesComponent) Reload() tea.Cmd {
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return func() tea.Msg {
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m.renderView(m.width)
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return renderFinishedMsg{}
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}
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}
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func (m *messagesComponent) PageUp() (tea.Model, tea.Cmd) {
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m.viewport.ViewUp()
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return m, nil
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}
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func (m *messagesComponent) PageDown() (tea.Model, tea.Cmd) {
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m.viewport.ViewDown()
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return m, nil
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}
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func (m *messagesComponent) HalfPageUp() (tea.Model, tea.Cmd) {
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m.viewport.HalfViewUp()
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return m, nil
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}
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func (m *messagesComponent) HalfPageDown() (tea.Model, tea.Cmd) {
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m.viewport.HalfViewDown()
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return m, nil
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}
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func (m *messagesComponent) Previous() (tea.Model, tea.Cmd) {
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m.tail = false
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if m.selectedPart < 0 {
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m.selectedPart = m.partCount
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}
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m.selectedPart--
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if m.selectedPart < 0 {
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m.selectedPart = 0
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}
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return m, util.CmdHandler(selectedMessagePartChangedMsg{
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part: m.selectedPart,
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})
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}
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func (m *messagesComponent) Next() (tea.Model, tea.Cmd) {
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m.tail = false
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m.selectedPart++
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if m.selectedPart >= m.partCount {
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m.selectedPart = m.partCount
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}
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return m, util.CmdHandler(selectedMessagePartChangedMsg{
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part: m.selectedPart,
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})
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}
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func (m *messagesComponent) First() (tea.Model, tea.Cmd) {
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m.selectedPart = 0
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m.tail = false
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return m, util.CmdHandler(selectedMessagePartChangedMsg{
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part: m.selectedPart,
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})
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}
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func (m *messagesComponent) Last() (tea.Model, tea.Cmd) {
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m.selectedPart = m.partCount - 1
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m.tail = true
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return m, util.CmdHandler(selectedMessagePartChangedMsg{
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part: m.selectedPart,
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})
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}
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func (m *messagesComponent) ToolDetailsVisible() bool {
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return m.showToolDetails
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}
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func NewMessagesComponent(app *app.App) MessagesComponent {
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vp := viewport.New()
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vp.KeyMap = viewport.KeyMap{}
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return &messagesComponent{
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app: app,
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viewport: vp,
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showToolDetails: true,
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cache: NewMessageCache(),
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tail: true,
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selectedPart: -1,
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}
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}
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