package lsp

import (
	"config-lsp/handlers/hosts"

	"github.com/tliron/glsp"
	protocol "github.com/tliron/glsp/protocol_3_16"
)

func TextDocumentHover(
	context *glsp.Context,
	params *protocol.HoverParams,
) (*protocol.Hover, error) {
	document := hosts.DocumentParserMap[params.TextDocument.URI]

	line := params.Position.Line
	// character := params.Position.Character

	if _, found := document.Parser.CommentLines[line]; found {
		// Comment
		return nil, nil
	}

	// entry, found := document.Parser.Tree.Entries[line]
	//
	// if !found {
	// 	// Empty line
	// 	return nil, nil
	// }
	//
	// target := handlers.GetHoverTargetInEntry(*entry, character)
	//
	// var hostname *ast.HostsHostname
	//
	// switch *target {
	// case handlers.HoverTargetIPAddress:
	// 	relativeCursor := character - entry.IPAddress.Location.Start.Character
	// 	hover := fields.IPAddressField.FetchHoverInfo(entry.IPAddress.Value.String(), relativeCursor)
	//
	// 	return &protocol.Hover{
	// 		Contents: hover,
	// 	}, nil
	// case handlers.HoverTargetHostname:
	// 	hostname = entry.Hostname
	// case handlers.HoverTargetAlias:
	// 	for _, alias := range entry.Aliases {
	// 		if alias.Location.Start.Character <= character && character <= alias.Location.End.Character {
	// 			hostname = alias
	// 			break
	// 		}
	// 	}
	// }
	//
	// if hostname != nil {
	// 	contents := []string{
	// 		"## Hostname",
	// 	}
	// 	contents = append(
	// 		contents,
	// 		fields.HostnameField.GetTypeDescription()...,
	// 	)
	// 	contents = append(
	// 		contents,
	// 		[]string{
	// 			"",
	// 		}...,
	// 	)
	// 	contents = append(
	// 		contents,
	// 		fields.HostnameField.Documentation,
	// 	)
	// 	contents = append(
	// 		contents,
	// 		handlers.GetHoverInfoForHostname(*document, *hostname, character)...,
	// 	)
	//
	// 	return &protocol.Hover{
	// 		Contents: &protocol.MarkupContent{
	// 			Kind:  protocol.MarkupKindMarkdown,
	// 			Value: strings.Join(contents, "\n"),
	// 		},
	// 	}, nil
	// }

	return nil, nil
}