cli: add some search functionality

README.md

@@ -58,13 +58,12 @@ Run `poetry run worblehat --help` for more info
 - [X] Ability to create and update bookcases
 - [X] Ability to create and update bookcase shelfs
 - [X] Ability to create and update bookcase items
-- [X] Ability to borrow an item
+- [X] Ability to borrow and deliver items
+- [ ] Ability to borrow and deliver multiple items at a time
 - [X] Ability to enter the queue for borrowing an item
 - [ ] Ability to extend a borrowing, only if no one is behind you in the queue
-- [ ] Ability to borrow multiple items at a time
-- [ ] Ability to deliver multiple items at a time
 - [ ] Ability to list borrowed items which are overdue
-- [ ] Ability to search for items
+- [~] Ability to search for items
 - [ ] Ability to print PVV-specific labels for items missing a label, or which for any other reason needs a custom one
 - [ ] Ascii art of monkey with fingers in eyes
 

worblehat/cli/main.py

@@ -18,6 +18,7 @@ from .subclis import (
     AdvancedOptionsCli,
     BookcaseItemCli,
     select_bookcase_shelf,
+    SearchCli,
 )
 
 # TODO: Category seems to have been forgotten. Maybe relevant interactivity should be added?
@@ -161,7 +162,13 @@ class WorblehatCli(NumberedCmd):
 
 
     def do_search(self, _: str):
-        print('TODO: implement search')
+        search_cli = SearchCli(self.sql_session)
+        search_cli.cmdloop()
+        if search_cli.result is not None:
+            BookcaseItemCli(
+                sql_session = self.sql_session,
+                bookcase_item = search_cli.result,
+            ).cmdloop()
 
 
     def do_advanced(self, _: str):

worblehat/cli/prompt_utils.py

@@ -129,16 +129,16 @@ class NumberedCmd(Cmd):
 
 
     prompt_header: str | None = None
+    funcs: dict[int, dict[str, str | Callable[[Any, str], bool | None]]]
 
 
     def __init__(self):
         super().__init__()
 
 
-    @classmethod
-    def _generate_usage_list(cls) -> str:
+    def _generate_usage_list(self) -> str:
         result = ''
-        for i, func in cls.funcs.items():
+        for i, func in self.funcs.items():
             if i == 0:
                 i = '*'
             result += f'{i}) {func["doc"]}\n'
@@ -186,3 +186,26 @@ class NumberedCmd(Cmd):
             result += f'[{self.lastcmd}]> '
 
         return result
+
+
+class NumberedItemSelector(NumberedCmd):
+    def __init__(
+        self,
+        items: list[Any],
+        stringify: Callable[[Any], str] = lambda x: str(x),
+    ):
+        super().__init__()
+        self.items = items
+        self.stringify = stringify
+        self.funcs = {
+            i: {
+                'f': self._select_item,
+                'doc': self.stringify(item),
+            }
+            for i, item in enumerate(items, start=1)
+        }
+
+
+    def _select_item(self, *a):
+        self.result = self.items[int(self.lastcmd)-1]
+        return True

worblehat/cli/subclis/__init__.py

@@ -1,3 +1,4 @@
 from .advanced_options import AdvancedOptionsCli
 from .bookcase_item import BookcaseItemCli
 from .bookcase_shelf_selector import select_bookcase_shelf
+from .search import SearchCli

worblehat/cli/subclis/search.py

@@ -0,0 +1,145 @@
+from sqlalchemy import select
+from sqlalchemy.orm import Session
+
+
+from worblehat.cli.prompt_utils import (
+    NumberedCmd,
+    NumberedItemSelector,
+)
+from worblehat.models import Author, BookcaseItem
+
+
+class SearchCli(NumberedCmd):
+    def __init__(self, sql_session: Session):
+        super().__init__()
+        self.sql_session = sql_session
+
+
+    def do_search_all(self, _: str):
+        print('TODO: Implement search all')
+
+
+    def do_search_title(self, _: str):
+        while (input_text := input('Enter title: ')) == '':
+            pass
+
+        items = self.sql_session.scalars(
+            select(BookcaseItem)
+            .where(BookcaseItem.name.ilike(f'%{input_text}%')),
+        ).all()
+
+        if len(items) == 0:
+            print('No items found.')
+            return
+
+        selector = NumberedItemSelector(
+            items = items,
+            stringify = lambda item: f"{item.name} ({item.isbn})",
+        )
+        selector.cmdloop()
+        if selector.result is not None:
+            self.result = selector.result
+            return True
+
+
+    def do_search_author(self, _: str):
+        while (input_text := input('Enter author name: ')) == '':
+            pass
+
+        author = self.sql_session.scalars(
+            select(Author)
+            .where(Author.name.ilike(f'%{input_text}%')),
+        ).all()
+
+        if len(author) == 0:
+            print('No authors found.')
+            return
+        elif len(author) == 1:
+            selected_author = author[0]
+            print('Found author:')
+            print(f"  {selected_author.name} ({sum(item.amount for item in selected_author.books)} items)")
+        else:
+            selector = NumberedItemSelector(
+                items = author,
+                stringify = lambda author: f"{author.name} ({sum(item.amount for item in author.books)} items)",
+            )
+            selector.cmdloop()
+            if selector.result is None:
+                return
+            selected_author = selector.result
+
+        selector = NumberedItemSelector(
+            items = selected_author.books,
+            stringify = lambda item: f"{item.name} ({item.isbn})",
+        )
+        selector.cmdloop()
+        if selector.result is not None:
+            self.result = selector.result
+            return True
+
+
+    def do_search_owner(self, _: str):
+        while (input_text := input('Enter username: ')) == '':
+            pass
+
+        users = self.sql_session.scalars(
+            select(BookcaseItem.owner)
+            .where(BookcaseItem.owner.ilike(f'%{input_text}%'))
+            .distinct(),
+        ).all()
+
+        if len(users) == 0:
+            print('No users found.')
+            return
+        elif len(users) == 1:
+            selected_user = users[0]
+            print('Found user:')
+            print(f"  {selected_user}")
+        else:
+            selector = NumberedItemSelector(items = users)
+            selector.cmdloop()
+            if selector.result is None:
+                return
+            selected_user = selector.result
+
+        items = self.sql_session.scalars(
+            select(BookcaseItem)
+            .where(BookcaseItem.owner == selected_user),
+        ).all()
+
+        selector = NumberedItemSelector(
+            items = items,
+            stringify = lambda item: f"{item.name} ({item.isbn})",
+        )
+        selector.cmdloop()
+        if selector.result is not None:
+            self.result = selector.result
+            return True
+
+
+    def do_done(self, _: str):
+        return True
+
+
+    funcs = {
+        1: {
+            'f': do_search_all,
+            'doc': 'Search everything',
+        },
+        2: {
+            'f': do_search_title,
+            'doc': 'Search by title',
+        },
+        3: {
+            'f': do_search_author,
+            'doc': 'Search by author',
+        },
+        4: {
+            'f': do_search_owner,
+            'doc': 'Search by owner',
+        },
+        9: {
+            'f': do_done,
+            'doc': 'Done',
+        },
+    }