Optimize partition search

composeApp/src/commonMain/kotlin/mg/dot/feufaro/data/DrawerItem.kt

@@ -17,12 +17,50 @@ data class DrawerItem(
     val firstNotes: String = "",
     val path: String
 ) {
+    private data class TitleComponents(
+        val prefix: String,
+        val number: String,
+        val version: String?
+    )
+
+    private fun parseComponents(str: String): TitleComponents? {
+        // préfixe (lettres), numéro (chiffres), version optionnelle
+        val regex = Regex("""^([a-zA-Z]+)[-_\s]*(\d+)(?:[-_\s]*(\d+))?""")
+        val match = regex.find(str.trim()) ?: return null
+        val prefix = match.groupValues[1].lowercase()
+        val number = match.groupValues[2]
+        val version = match.groupValues[3].ifEmpty { null }
+        return TitleComponents(prefix, number, version)
+    }
+
     fun matchesQuery(query: String): Boolean {
         if (query.isBlank()) return true
         val cleanQuery = query.normalizeForSearch()
         val cleanTitle = title.normalizeForSearch()
         val cleanContent = contentTitle.normalizeForSearch()
-        return (cleanTitle + cleanContent).contains(cleanQuery)
+
+        if ((cleanTitle + cleanContent).contains(cleanQuery) || (cleanContent + cleanTitle).contains(cleanQuery)) {
+            return true
+        }
+
+        val queryComponents = parseComponents(query)
+        val titleComponents = parseComponents(title)
+        if (queryComponents != null && titleComponents != null) {
+            if (queryComponents.prefix == titleComponents.prefix) {
+                return true
+            }
+        }
+
+        val queryLetters = query.filter { it.isLetter() }.lowercase()
+        val queryDigits = query.filter { it.isDigit() }
+
+        if (queryLetters.isNotEmpty() && queryDigits.isNotEmpty()) {
+            val lettersMatch = cleanContent.contains(queryLetters) || cleanTitle.contains(queryLetters)
+            val digitsMatch = title.contains(queryDigits) || cleanTitle.contains(queryDigits) || cleanContent.contains(queryDigits)
+            return lettersMatch && digitsMatch
+        }
+
+        return false
     }
 
     fun getSearchScore(query: String): Int {
@@ -32,20 +70,66 @@ data class DrawerItem(
         val cleanTitle = title.normalizeForSearch()
         val cleanContent = contentTitle.normalizeForSearch()
 
+        val queryComponents = parseComponents(query)
+        val titleComponents = parseComponents(title)
+
+        if (queryComponents != null && titleComponents != null) {
+            val samePrefix = queryComponents.prefix == titleComponents.prefix
+            val sameNumber = queryComponents.number == titleComponents.number
+            val sameVersion = queryComponents.version == titleComponents.version
+
+            if (samePrefix && sameNumber && sameVersion) {
+                return 3000
+            }
+
+            if (samePrefix && sameNumber) {
+                return 2500
+            }
+
+            if (samePrefix && !sameNumber) {
+                if (cleanTitle == cleanQuery) {
+                    return 1200
+                }
+            }
+        }
+
+        if (title.equals(query, ignoreCase = true)) return 2000
+
         if (cleanTitle == cleanQuery) return 1000
+
+        val titleDigitBlocks = Regex("\\d+").findAll(title).map { it.value }.toList()
+        val queryDigits = query.filter { it.isDigit() }
+        val queryLetters = query.filter { it.isLetter() }.lowercase()
+
         if (cleanTitle.startsWith(cleanQuery)) {
-            val nextCharIndex = cleanQuery.length
+            if (queryDigits.isNotEmpty() && titleDigitBlocks.contains(queryDigits)) {
+                return 950
+            }
+            return 800
+        }
 
-            val isNextCharDigit = nextCharIndex < cleanTitle.length && cleanTitle[nextCharIndex].isDigit()
+        if (queryLetters.isEmpty() && queryDigits.isNotEmpty()) {
+            if (titleDigitBlocks.contains(queryDigits)) return 1100
+            if (cleanTitle.contains(queryDigits)) return 400
+            if (cleanContent.contains(queryDigits)) return 200
+        }
 
-            return if (isNextCharDigit) {
+        if (queryLetters.isNotEmpty() && queryDigits.isNotEmpty()) {
-                100
+            val lettersInContent = cleanContent.contains(queryLetters)
-            } else {
+            val lettersInTitle = cleanTitle.contains(queryLetters)
-                800
+            val digitsInTitleBlock = titleDigitBlocks.contains(queryDigits)
+            val digitsInTitle = cleanTitle.contains(queryDigits)
+
+            if ((lettersInContent || lettersInTitle) && digitsInTitleBlock) {
+                return 850
+            }
+            if ((lettersInContent || lettersInTitle) && digitsInTitle) {
+                return 500
             }
         }
-        if (cleanTitle.contains(cleanQuery)) return 50
+
-        if (cleanContent.contains(cleanQuery)) return 10
+        if (cleanTitle.contains(cleanQuery)) return 600
+        if (cleanContent.contains(cleanQuery)) return 100
 
         return 0
     }

composeApp/src/commonMain/kotlin/mg/dot/feufaro/ui/DrawerUI.kt

@@ -9,6 +9,7 @@ import androidx.compose.foundation.interaction.MutableInteractionSource
 import androidx.compose.foundation.layout.*
 import androidx.compose.foundation.lazy.LazyColumn
 import androidx.compose.foundation.lazy.itemsIndexed
+import androidx.compose.foundation.lazy.rememberLazyListState
 import androidx.compose.foundation.shape.CircleShape
 import androidx.compose.foundation.shape.RoundedCornerShape
 import androidx.compose.foundation.text.BasicTextField
@@ -1093,11 +1094,8 @@ fun MainScreenWithDrawer(
                                     colors = CardDefaults.cardColors(containerColor = MaterialTheme.colorScheme.surface),
                                     modifier = Modifier.fillMaxHeight()
                                 ) {
-                                    val sortedSongs = remember(filteredSongs) {
+                                    val sortedSongs = remember(filteredSongs, textInput) {
-                                        filteredSongs.sortedWith(
+                                        val naturalComparator = Comparator<DrawerItem> { a, b ->
-                                            compareBy<DrawerItem> { item ->
-                                                !item.path.startsWith("assets://")
-                                            }.thenComparing { a, b ->
                                             val regex = Regex("(?<=\\D)(?=\\d)|(?<=\\d)(?=\\D)")
                                             val chunksA = a.title.lowercase().split(regex)
                                             val chunksB = b.title.lowercase().split(regex)
@@ -1115,15 +1113,33 @@ fun MainScreenWithDrawer(
                                                 }
                                                 if (result != 0) break
                                             }
-                                                if (result == 0) {
+                                            if (result == 0) chunksA.size.compareTo(chunksB.size) else result
-                                                    chunksA.size.compareTo(chunksB.size)
+                                        }
+
+                                        if (textInput.isBlank()) {
+                                            filteredSongs.sortedWith(
+                                                compareBy<DrawerItem> { item -> !item.path.startsWith("assets://") }
+                                                    .thenComparing(naturalComparator)
+                                            )
                                         } else {
-                                                    result
+                                            filteredSongs.sortedWith(
-                                                }
+                                                compareByDescending<DrawerItem> { item -> item.getSearchScore(textInput) }
-                                            }
+                                                    .thenBy { item -> !item.path.startsWith("assets://") }
+                                                    .thenComparing(naturalComparator)
                                             )
                                         }
-                                    LazyColumn(Modifier.fillMaxSize()) {
+                                    }
+                                    val searchListState = rememberLazyListState()
+
+                                    LaunchedEffect(textInput) {
+                                        if (sortedSongs.isNotEmpty()) {
+                                            searchListState.scrollToItem(0)
+                                        }
+                                    }
+                                    LazyColumn(
+                                        state = searchListState,
+                                        modifier = Modifier.fillMaxSize()
+                                    ) {
                                         if (sortedSongs.isEmpty() && textInput.isNotEmpty()) {
                                             item {
                                                 ListItem(