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package me.kyren223.harpoonforjb
import com.intellij.ide.util.PropertiesComponent
import com.intellij.openapi.project.Project
import com.intellij.openapi.vfs.LocalFileSystem
import com.intellij.openapi.vfs.VirtualFile
object HarpoonState {
private var previousIndex: Int? = null
private var currentIndex: Int? = null
private var nextIndex: Int? = null
private var projectFiles: MutableMap<String, MutableList<VirtualFile>> = mutableMapOf()
private val HARPOON_LIST_KEY = "HarpoonList"
fun setFile(project: Project, index: Int, file: VirtualFile) {
if (index < 0) return
loadProject(project)
val files = projectFiles[project.name]
if (files!!.size <= index) return
files[index] = file
saveProject(project)
}
fun appendFile(project: Project, file: VirtualFile) {
if (!file.isValid) return
loadProject(project)
val files = projectFiles[project.name]
files!!.add(file)
saveProject(project)
}
fun selectFile(project: Project, index: Int): VirtualFile? {
if (index < 0) return null
loadProject(project)
val files = projectFiles[project.name]
if (files!!.size <= index) return null
return files[index]
}
private fun loadProject(project: Project) {
if (project.name in projectFiles) return
val properties = PropertiesComponent.getInstance(project)
val list = properties.getList(HARPOON_LIST_KEY)
if (list == null) {
projectFiles[project.name] = mutableListOf()
return
}
val fs = LocalFileSystem.getInstance()
val files = list.stream()
.map { fs.findFileByPath(it) }
.toList()
.filterNotNull()
.filter { it.isValid }
.toMutableList()
projectFiles[project.name] = files
}
private fun saveProject(project: Project) {
if (project.name !in projectFiles) return
val files = projectFiles[project.name]
val properties = PropertiesComponent.getInstance(project)
val stringList = files!!.stream()
.filter { it.isValid }
.map { it.path }
.toList()
properties.setList(HARPOON_LIST_KEY, stringList)
}
}
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