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package provider
import (
"fmt"
"sort"
"strings"
"github.com/grindlemire/go-tui/internal/lsp/gopls"
"github.com/grindlemire/go-tui/internal/lsp/log"
"github.com/grindlemire/go-tui/internal/lsp/schema"
)
func (c *completionProvider) getComponentCompletions() []CompletionItem {
var items []CompletionItem
for _, name := range c.index.All() {
info, ok := c.index.Lookup(name)
if !ok || info == nil {
continue
}
var params []string
for _, p := range info.Params {
params = append(params, fmt.Sprintf("%s %s", p.Name, p.Type))
}
detail := fmt.Sprintf("(%s)", strings.Join(params, ", "))
items = append(items, CompletionItem{
Label: name,
Kind: CompletionItemKindFunction,
Detail: detail,
InsertText: name + "()",
FilterText: name,
})
}
return items
}
func (c *completionProvider) getDSLKeywordCompletions() []CompletionItem {
return []CompletionItem{
{
Label: "for",
Kind: CompletionItemKindKeyword,
Detail: "Loop over items",
InsertText: "for ${1:i}, ${2:item} := range ${3:items} {\n\t$0\n}",
Documentation: &MarkupContent{
Kind: "markdown",
Value: "Loop over a collection.\n\n```gsx\nfor i, item := range items {\n <span>{item}</span>\n}\n```",
},
},
{
Label: "if",
Kind: CompletionItemKindKeyword,
Detail: "Conditional rendering",
InsertText: "if ${1:condition} {\n\t$0\n}",
Documentation: &MarkupContent{
Kind: "markdown",
Value: "Conditionally render content.\n\n```gsx\nif showHeader {\n <span>Header</span>\n}\n```",
},
},
{
Label: "let",
Kind: CompletionItemKindKeyword,
Detail: "Bind element to variable",
InsertText: "let ${1:name} = ",
Documentation: &MarkupContent{
Kind: "markdown",
Value: "Bind an element to a variable for later reference.\n\n```gsx\nheader := <div>Header</div>\n```",
},
},
}
}
func (c *completionProvider) getElementCompletions() []CompletionItem {
var items []CompletionItem
for _, tag := range schema.AllElementTags() {
elem := schema.GetElement(tag)
if elem == nil {
continue
}
insertText := tag + ">$0</" + tag + ">"
if elem.SelfClosing {
insertText = tag + " />"
}
items = append(items, CompletionItem{
Label: tag,
Kind: CompletionItemKindClass,
Detail: elem.Category,
InsertText: insertText,
Documentation: &MarkupContent{
Kind: "markdown",
Value: elem.Description,
},
})
}
return items
}
func (c *completionProvider) getAttributeCompletions(tag string) []CompletionItem {
elem := schema.GetElement(tag)
if elem == nil {
return nil
}
var items []CompletionItem
for _, attr := range elem.Attributes {
var insertText string
if attr.Type == "bool" {
insertText = attr.Name
} else if attr.Type == "string" {
insertText = attr.Name + `="${1}"`
} else {
insertText = attr.Name + "={$1}"
}
items = append(items, CompletionItem{
Label: attr.Name,
Kind: CompletionItemKindProperty,
Detail: attr.Type,
InsertText: insertText,
Documentation: &MarkupContent{
Kind: "markdown",
Value: attr.Description,
},
})
}
for _, handlerName := range schema.AllEventHandlerNames() {
handler := schema.GetEventHandler(handlerName)
if handler == nil {
continue
}
if schema.GetAttribute(tag, handlerName) != nil {
continue
}
items = append(items, CompletionItem{
Label: handlerName,
Kind: CompletionItemKindEvent,
Detail: handler.Signature,
InsertText: handlerName + "={$1}",
Documentation: &MarkupContent{
Kind: "markdown",
Value: handler.Description,
},
})
}
return items
}
func (c *completionProvider) getContextualCompletions(ctx *CursorContext) []CompletionItem {
if ctx.InElement && ctx.AttrTag != "" {
return c.getAttributeCompletions(ctx.AttrTag)
}
tag := enclosingTagFromText(ctx)
if tag != "" {
return c.getAttributeCompletions(tag)
}
var items []CompletionItem
items = append(items, c.getComponentCompletions()...)
items = append(items, c.getDSLKeywordCompletions()...)
items = append(items, c.getElementCompletions()...)
return items
}
func enclosingTagFromText(ctx *CursorContext) string {
offset := PositionToOffset(ctx.Document.Content, ctx.Position)
content := ctx.Document.Content
for i := offset - 1; i >= 0; i-- {
if content[i] == '<' {
j := i + 1
for j < len(content) && IsWordChar(content[j]) {
j++
}
if j > i+1 {
tagName := content[i+1 : j]
for k := j; k < offset; k++ {
if content[k] == '>' {
return ""
}
}
return tagName
}
break
}
if content[i] == '>' {
break
}
}
return ""
}
func (c *completionProvider) getStateMethodCompletions(ctx *CursorContext) []CompletionItem {
if len(ctx.Scope.StateVars) == 0 {
return nil
}
offset := PositionToOffset(ctx.Document.Content, ctx.Position)
if offset <= 1 {
return nil
}
content := ctx.Document.Content
dotPos := offset - 1
for dotPos > 0 && (content[dotPos] == ' ' || content[dotPos] == '\t') {
dotPos--
}
if dotPos < 0 || content[dotPos] != '.' {
return nil
}
wordEnd := dotPos
wordStart := wordEnd - 1
for wordStart >= 0 && IsWordChar(content[wordStart]) {
wordStart--
}
wordStart++
if wordStart >= wordEnd {
return nil
}
varName := content[wordStart:wordEnd]
isStateVar := false
for _, sv := range ctx.Scope.StateVars {
if sv.Name == varName {
isStateVar = true
break
}
}
if !isStateVar {
return nil
}
log.Server("State method completion for %q", varName)
return []CompletionItem{
{
Label: "Get()",
Kind: CompletionItemKindMethod,
Detail: "Get current value",
InsertText: "Get()",
Documentation: &MarkupContent{
Kind: "markdown",
Value: "Returns the current value of the state variable.",
},
},
{
Label: "Set(value)",
Kind: CompletionItemKindMethod,
Detail: "Set new value",
InsertText: "Set(${1:value})",
Documentation: &MarkupContent{
Kind: "markdown",
Value: "Sets a new value for the state variable, triggering a re-render.",
},
},
{
Label: "Update(fn)",
Kind: CompletionItemKindMethod,
Detail: "Update with function",
InsertText: "Update(func(current ${1:T}) ${2:T} {\n\t${3:return current}\n})",
Documentation: &MarkupContent{
Kind: "markdown",
Value: "Updates the state using a function that receives the current value and returns the new value.",
},
},
{
Label: "Bind(fn)",
Kind: CompletionItemKindMethod,
Detail: "Register change callback",
InsertText: "Bind(${1:callback})",
Documentation: &MarkupContent{
Kind: "markdown",
Value: "Registers a callback that is called when the state changes.",
},
},
{
Label: "Batch(fn)",
Kind: CompletionItemKindMethod,
Detail: "Batch multiple updates",
InsertText: "Batch(func() {\n\t$0\n})",
Documentation: &MarkupContent{
Kind: "markdown",
Value: "Batches multiple state updates into a single re-render.",
},
},
}
}
func (c *completionProvider) getTailwindCompletions(prefix string) []CompletionItem {
matches := schema.MatchClasses(prefix)
var items []CompletionItem
for _, cls := range matches {
docValue := cls.Description
items = append(items, CompletionItem{
Label: cls.Name,
Kind: CompletionItemKindConstant,
Detail: cls.Category,
InsertText: cls.Name,
FilterText: cls.Name,
Documentation: &MarkupContent{
Kind: "markdown",
Value: docValue,
},
})
}
sortCompletionsByCategory(items)
return items
}
func sortCompletionsByCategory(items []CompletionItem) {
categoryOrder := map[string]int{
"layout": 1,
"flex": 2,
"spacing": 3,
"typography": 4,
"visual": 5,
}
sort.Slice(items, func(i, j int) bool {
orderI := categoryOrder[items[i].Detail]
orderJ := categoryOrder[items[j].Detail]
if orderI == 0 {
orderI = 100
}
if orderJ == 0 {
orderJ = 100
}
if orderI != orderJ {
return orderI < orderJ
}
return items[i].Label < items[j].Label
})
}
func (c *completionProvider) getGoplsCompletions(ctx *CursorContext) ([]CompletionItem, error) {
proxy := c.goplsProxy.GetProxy()
if proxy == nil {
return nil, nil
}
cached := c.virtualFiles.GetVirtualFile(ctx.Document.URI)
if cached == nil || cached.SourceMap == nil {
return nil, nil
}
goLine, goCol, found := cached.SourceMap.TuiToGo(ctx.Position.Line, ctx.Position.Character)
if !found {
log.Server("No mapping found for completion position %d:%d", ctx.Position.Line, ctx.Position.Character)
return nil, nil
}
goplsItems, err := proxy.Completion(cached.GoURI, gopls.Position{
Line: goLine,
Character: goCol,
})
if err != nil {
return nil, err
}
var items []CompletionItem
for _, gi := range goplsItems {
item := CompletionItem{
Label: gi.Label,
Kind: CompletionItemKind(gi.Kind),
Detail: gi.Detail,
InsertText: gi.InsertText,
FilterText: gi.FilterText,
}
if gi.Documentation != nil {
item.Documentation = &MarkupContent{
Kind: gi.Documentation.Kind,
Value: gi.Documentation.Value,
}
}
items = append(items, item)
}
return items, nil
}
|