Add Search ability

CHANGELOG.md

@@ -1,6 +1,7 @@
 # 0.1.2
 
  * Switch from Markdown to HTML via QTextEdit, with a toolbar
+ * Add search ability
  * Fix Settings shortcut and change nav menu from 'File' to 'Application'
 
 # 0.1.1

README.md

@@ -20,16 +20,15 @@ There is deliberately no network connectivity or syncing intended.
 ## Features
 
  * Every 'page' is linked to the calendar day
- * Basic markdown
+ * Text is HTML with basic styling
+ * Search
  * Automatic periodic saving (or explicitly save)
- * Navigating from one day to the next automatically saves
- * Basic keyboard shortcuts
  * Transparent integrity checking of the database when it opens
+ * Rekey the database (change the password)
 
 
 ## Yet to do
 
- * Search
  * Taxonomy/tagging
  * Export to other formats (plaintext, json, sql etc)
 
@@ -47,7 +46,7 @@ There is deliberately no network connectivity or syncing intended.
 
  * Download the whl and run it
 
-### From PyPi
+### From PyPi/pip
 
  * `pip install bouquin`
 

bouquin/db.py

@@ -100,6 +100,12 @@ class DBManager:
         )
         self.conn.commit()
 
+    def search_entries(self, text: str) -> list[str]:
+        cur = self.conn.cursor()
+        pattern = f"%{text}%"
+        cur.execute("SELECT * FROM entries WHERE TRIM(content) LIKE ?", (pattern,))
+        return [r for r in cur.fetchall()]
+
     def dates_with_content(self) -> list[str]:
         cur = self.conn.cursor()
         cur.execute("SELECT date FROM entries WHERE TRIM(content) <> '';")

bouquin/editor.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 from PySide6.QtGui import (
     QColor,
     QFont,

bouquin/main.py

@@ -11,5 +11,6 @@ def main():
     app = QApplication(sys.argv)
     app.setApplicationName(APP_NAME)
     app.setOrganizationName(APP_ORG)
-    win = MainWindow(); win.show()
+    win = MainWindow()
+    win.show()
     sys.exit(app.exec())

bouquin/main_window.py

@@ -22,6 +22,7 @@ from PySide6.QtWidgets import (
 from .db import DBManager
 from .editor import Editor
 from .key_prompt import KeyPrompt
+from .search import Search
 from .settings import APP_NAME, load_db_config, save_db_config
 from .settings_dialog import SettingsDialog
 from .toolbar import ToolBar
@@ -44,12 +45,16 @@ class MainWindow(QMainWindow):
         self.calendar.setGridVisible(True)
         self.calendar.selectionChanged.connect(self._on_date_changed)
 
+        self.search = Search(self.db)
+        self.search.openDateRequested.connect(self._load_selected_date)
+
         # Lock the calendar to the left panel at the top to stop it stretching
         # when the main window is resized.
         left_panel = QWidget()
         left_layout = QVBoxLayout(left_panel)
         left_layout.setContentsMargins(8, 8, 8, 8)
         left_layout.addWidget(self.calendar, alignment=Qt.AlignTop)
+        left_layout.addWidget(self.search, alignment=Qt.AlignBottom)
         left_layout.addStretch(1)
         left_panel.setFixedWidth(self.calendar.sizeHint().width() + 16)
 
@@ -187,8 +192,9 @@ class MainWindow(QMainWindow):
         d = self.calendar.selectedDate()
         return f"{d.year():04d}-{d.month():02d}-{d.day():02d}"
 
-    def _load_selected_date(self):
-        date_iso = self._current_date_iso()
+    def _load_selected_date(self, date_iso=False):
+        if not date_iso:
+            date_iso = self._current_date_iso()
         try:
             text = self.db.get_entry(date_iso)
         except Exception as e:

bouquin/search.py

@@ -0,0 +1,195 @@
+from __future__ import annotations
+
+import re
+from typing import Iterable, Tuple
+
+from PySide6.QtCore import Qt, Signal
+from PySide6.QtGui import QFont, QTextCharFormat, QTextCursor, QTextDocument
+from PySide6.QtWidgets import (
+    QLabel,
+    QLineEdit,
+    QListWidget,
+    QListWidgetItem,
+    QHBoxLayout,
+    QVBoxLayout,
+    QWidget,
+)
+
+# type: rows are (date_iso, content)
+Row = Tuple[str, str]
+
+
+class Search(QWidget):
+    """Encapsulates the search UI + logic and emits a signal when a result is chosen."""
+
+    openDateRequested = Signal(str)
+
+    def __init__(self, db, parent: QWidget | None = None):
+        super().__init__(parent)
+        self._db = db
+
+        self.search = QLineEdit()
+        self.search.setPlaceholderText("Search for notes here")
+        self.search.textChanged.connect(self._search)
+
+        self.results = QListWidget()
+        self.results.setUniformItemSizes(False)
+        self.results.setSelectionMode(self.results.SelectionMode.SingleSelection)
+        self.results.itemClicked.connect(self._open_selected)
+        self.results.hide()
+
+        lay = QVBoxLayout(self)
+        lay.setContentsMargins(0, 0, 0, 0)
+        lay.setSpacing(6)
+        lay.addWidget(self.search)
+        lay.addWidget(self.results)
+
+    def _open_selected(self, item: QListWidgetItem):
+        date_str = item.data(Qt.ItemDataRole.UserRole)
+        if date_str:
+            self.openDateRequested.emit(date_str)
+
+    def _search(self, text: str):
+        """
+        Search for the supplied text in the database.
+        For all rows found, populate the results widget with a clickable preview.
+        """
+        q = text.strip()
+        if not q:
+            self.results.clear()
+            self.results.hide()
+            return
+
+        try:
+            rows: Iterable[Row] = self._db.search_entries(q)
+        except Exception:
+            # be quiet on DB errors here; caller can surface if desired
+            rows = []
+
+        self._populate_results(q, rows)
+
+    def _populate_results(self, query: str, rows: Iterable[Row]):
+        self.results.clear()
+        rows = list(rows)
+        if not rows:
+            self.results.hide()
+            return
+
+        self.results.show()
+
+        for date_str, content in rows:
+            # Build an HTML fragment around the match and whether to show ellipses
+            frag_html, left_ell, right_ell = self._make_html_snippet(
+                content, query, radius=60, maxlen=180
+            )
+
+            # ---- Per-item widget: date on top, preview row below (with ellipses) ----
+            container = QWidget()
+            outer = QVBoxLayout(container)
+            outer.setContentsMargins(8, 6, 8, 6)
+            outer.setSpacing(2)
+
+            # Date label (plain text)
+            date_lbl = QLabel(date_str)
+            date_lbl.setTextFormat(Qt.TextFormat.PlainText)
+            date_f = date_lbl.font()
+            date_f.setPointSizeF(date_f.pointSizeF() - 1)
+            date_lbl.setFont(date_f)
+            date_lbl.setStyleSheet("color:#666;")
+            outer.addWidget(date_lbl)
+
+            # Preview row with optional ellipses
+            row = QWidget()
+            h = QHBoxLayout(row)
+            h.setContentsMargins(0, 0, 0, 0)
+            h.setSpacing(4)
+
+            if left_ell:
+                left = QLabel("…")
+                left.setStyleSheet("color:#888;")
+                h.addWidget(left, 0, Qt.AlignmentFlag.AlignTop)
+
+            preview = QLabel()
+            preview.setTextFormat(Qt.TextFormat.RichText)
+            preview.setWordWrap(True)
+            preview.setOpenExternalLinks(True)  # keep links in your HTML clickable
+            preview.setText(
+                frag_html
+                if frag_html
+                else "<span style='color:#888'>(no preview)</span>"
+            )
+            h.addWidget(preview, 1)
+
+            if right_ell:
+                right = QLabel("…")
+                right.setStyleSheet("color:#888;")
+                h.addWidget(right, 0, Qt.AlignmentFlag.AlignBottom)
+
+            outer.addWidget(row)
+
+            # ---- Add to list ----
+            item = QListWidgetItem()
+            item.setData(Qt.ItemDataRole.UserRole, date_str)
+            item.setSizeHint(container.sizeHint())
+
+            self.results.addItem(item)
+            self.results.setItemWidget(item, container)
+
+    # --- Snippet/highlight helpers -----------------------------------------
+    def _make_html_snippet(self, html_src: str, query: str, *, radius=60, maxlen=180):
+        doc = QTextDocument()
+        doc.setHtml(html_src)
+        plain = doc.toPlainText()
+        if not plain:
+            return "", False, False
+
+        tokens = [t for t in re.split(r"\s+", query.strip()) if t]
+        L = len(plain)
+
+        # Find first occurrence (phrase first, then earliest token)
+        idx, mlen = -1, 0
+        if tokens:
+            lower = plain.lower()
+            phrase = " ".join(tokens).lower()
+            j = lower.find(phrase)
+            if j >= 0:
+                idx, mlen = j, len(phrase)
+            else:
+                for t in tokens:
+                    tj = lower.find(t.lower())
+                    if tj >= 0 and (idx < 0 or tj < idx):
+                        idx, mlen = tj, len(t)
+        # Compute window
+        if idx < 0:
+            start, end = 0, min(L, maxlen)
+        else:
+            start = max(0, min(idx - radius, max(0, L - maxlen)))
+            end = min(L, max(idx + mlen + radius, start + maxlen))
+
+        # Bold all token matches that fall inside [start, end)
+        if tokens:
+            lower = plain.lower()
+            fmt = QTextCharFormat()
+            fmt.setFontWeight(QFont.Weight.Bold)
+            for t in tokens:
+                t_low = t.lower()
+                pos = start
+                while True:
+                    k = lower.find(t_low, pos)
+                    if k == -1 or k >= end:
+                        break
+                    c = QTextCursor(doc)
+                    c.setPosition(k)
+                    c.setPosition(k + len(t), QTextCursor.MoveMode.KeepAnchor)
+                    c.mergeCharFormat(fmt)
+                    pos = k + len(t)
+
+        # Select the window and export as HTML fragment
+        c = QTextCursor(doc)
+        c.setPosition(start)
+        c.setPosition(end, QTextCursor.MoveMode.KeepAnchor)
+        fragment_html = (
+            c.selection().toHtml()
+        )  # preserves original styles + our bolding
+
+        return fragment_html, start > 0, end < L

bouquin/settings_dialog.py

@@ -91,7 +91,9 @@ class SettingsDialog(QDialog):
             return
         try:
             self._db.rekey(new_key)
-            QMessageBox.information(self, "Key changed", "The database key was updated.")
+            QMessageBox.information(
+                self, "Key changed", "The database key was updated."
+            )
         except Exception as e:
             QMessageBox.critical(self, "Error", f"Could not change key:\n{e}")
 

bouquin/toolbar.py

@@ -1,7 +1,10 @@
+from __future__ import annotations
+
 from PySide6.QtCore import Signal, Qt
 from PySide6.QtGui import QFont, QAction
 from PySide6.QtWidgets import QToolBar
 
+
 class ToolBar(QToolBar):
     boldRequested = Signal(QFont.Weight)
     italicRequested = Signal()