Working on FUSE

favro_sync/__init__.py

@@ -3,5 +3,7 @@
 Filesystem in User Space for Favro.
 
 Synchronize your local notes and your Favro.
-"""
 
+Uses the [Favro API](https://favro.com/developer/). Rate limiting depends upon
+your organization's payment plan.
+"""

favro_sync/__main__.py

@@ -1,35 +1,22 @@
 import secret_loader
 
-from .favro_client import FavroClient
+from .favro_client import FavroClient, SeqId
+from .favro_fuse import start_favro_fuse
 
 # Authentication
 
-
-description = '''
-I cannot remember what this card involved
-
-# Tasks
-
-- [ ] Why doesn't task work?
-- [ ] Task 2
-
-# Quotes
-
-    I love this card.
-'''
-
-def main(card_id: CardId):
-
-
 def main():
     secrets = secret_loader.SecretLoader()
-    FAVRO_ORG_ID = secrets.load_or_fail('FAVRO_ORGANIZATION_ID')
-    FAVRO_USERNAME = secrets.load_or_fail('FAVRO_USERNAME')
-    FAVRO_PASSWORD = secrets.load_or_fail('FAVRO_PASSWORD')
+    favro_org_id = secrets.load_or_fail('FAVRO_ORGANIZATION_ID')
+    favro_username = secrets.load_or_fail('FAVRO_USERNAME')
+    favro_password = secrets.load_or_fail('FAVRO_PASSWORD')
 
-    client = FavroClient(FAVRO_ORG_ID, FAVRO_USERNAME, FAVRO_PASSWORD)
-    card_id = client.get_card_id(SeqId(4714))
-    client.update_card_description(card_id, description)
+    client = FavroClient(favro_org_id=favro_org_id, favro_username=favro_username, favro_password=favro_password)
+    #card_id = client.get_card_id(SeqId(4714))
+    #description = 'TEST'
+    #client.update_card_description(card_id, description)
+
+    start_favro_fuse(client)
 
 if __name__ == '__main__':
     main()

favro_sync/favro_client.py

@@ -2,6 +2,9 @@ import requests
 import dataclasses
 from typing import Any
 import functools
+from collections.abc import Iterator
+
+PREFIX = 'PAR-' # TODO: Make configurable
 
 # Types
 
@@ -13,6 +16,23 @@ class SeqId:
 class CardId:
     raw_id: str
 
+@dataclasses.dataclass(frozen=True)
+class Card:
+    card_id: CardId
+    seq_id: SeqId
+    seq_id_with_prefix: str
+    detailed_description: str
+
+    @staticmethod
+    def from_json(json: dict[str, Any]) -> 'Card':
+        print(json)
+        return Card(
+                card_id = CardId(json['cardId']),
+                seq_id = SeqId(json['cardSequentialId']),
+                seq_id_with_prefix = PREFIX + json['cardSequentialId'],
+                detailed_description = json['detailedDescription'],
+        )
+
 # Endpoints
 URL_API_ROOT = 'https://favro.com/api/v1'
 URL_GET_ALL_CARDS = URL_API_ROOT+'/cards'
@@ -20,7 +40,7 @@ URL_UPDATE_CARD = URL_API_ROOT+'/cards/{card_id}'
 
 class FavroClient:
 
-    def __init__(*, favro_org_id: str, favro_username: str, favro_password: str,
+    def __init__(self, *, favro_org_id: str, favro_username: str, favro_password: str,
                  session: requests.Session | None = None):
         # Setup session
         self.session = session or requests.Session()
@@ -30,29 +50,44 @@ class FavroClient:
                 'content-type': 'application/json',
         })
 
+    def get_todo_list_cards(self) -> Iterator[Card]:
+        yield from self.get_cards(todo_list=True)
 
-    def get_card_json(seqid: SeqId) -> dict[str, Any]:
-        # TODO: Return structured?
 
-        params = {'cardSequentialId': seqid.raw_id}
+    def get_cards(self, *, seqid: SeqId | None = None, todo_list=True) -> Iterator[Card]:
+        # Determine params for get_cards
+        params = {}
+        if seqid:
+            params['cardSequentialId']= seqid.raw_id
+        if todo_list:
+            params['todoList'] = True
+
+        # Run query
         response = self.session.get(URL_GET_ALL_CARDS, params = params)
         response.raise_for_status()
         json = response.json()
-        assert json['pages'] == 1
-        assert len(json['entities']) == 1
-        return json['entities'][0]
+
+        # TODO: Pageination
+        for entity_json in json['entities']:
+            yield Card.from_json(entity_json)
+            del entity_json
+
+    def get_card(self, seqid: SeqId) -> Card:
+        return next(self.get_cards(seqid=seqid))
 
     @functools.cache
-    def get_card_id(seqid: SeqId) -> CardId:
-        json = get_card_json(seqid)
+    def get_card_id(self, seqid: SeqId) -> CardId:
+        json = self.get_card_json(seqid)
         return CardId(json['cardId'])
 
-    def update_card_description(card_id: CardId, description: str):
+    def update_card_description(self, card_id: CardId, description: str) -> Card:
+        """Returns updated Card."""
         json_body = {
                 'detailedDescription': description,
                 'descriptionFormat': 'markdown',
         }
 
-    response = SESSION.put(URL_UPDATE_CARD.format(card_id=card_id.raw_id), json=json_body)
+        response = self.session.put(URL_UPDATE_CARD.format(card_id=card_id.raw_id), json=json_body)
         response.raise_for_status()
-    # TODO: Return updated?
+
+        return Card.from_json(response.json())

favro_sync/favro_fuse.py

@@ -0,0 +1,83 @@
+import os, stat, errno, fuse
+from pathlib import Path
+from collections.abc import Iterator
+
+from .favro_client import FavroClient
+
+fuse.fuse_python_api = (0, 2)
+
+hello_path = '/hello'
+hello_str = b'Hello World!\n'
+
+class MyStat(fuse.Stat):
+    def __init__(self):
+        self.st_mode = 0
+        self.st_ino = 0
+        self.st_dev = 0
+        self.st_nlink = 0
+        self.st_uid = 0
+        self.st_gid = 0
+        self.st_size = 0
+        self.st_atime = 0
+        self.st_mtime = 0
+        self.st_ctime = 0
+
+class FavroFuse(fuse.Fuse):
+
+    def __init__(self, favro_client: FavroClient, **kwargs):
+        self.favro_client = favro_client
+        super().__init__(**kwargs)
+
+    def getattr(self, path: str) -> MyStat | int:
+        st = MyStat()
+        if path == '/':
+            st.st_mode = stat.S_IFDIR | 0o755
+            st.st_nlink = 2
+        elif path == hello_path:
+            st.st_mode = stat.S_IFREG | 0o444
+            st.st_nlink = 1
+            st.st_size = len(hello_str)
+        else:
+            return -errno.ENOENT
+        return st
+
+    def readdir(self, path: str, offset: int) -> Iterator[fuse.Direntry]:
+        yield fuse.Direntry('.')
+        yield fuse.Direntry('..')
+
+        for card in self.favro_client.get_todo_list_cards():
+            yield fuse.Direntry(card.seqid_with_prefix)
+
+    def open(self, path: str, flags) -> int:
+        if path != hello_path:
+            return -errno.ENOENT
+        accmode = os.O_RDONLY | os.O_WRONLY | os.O_RDWR
+        if (flags & accmode) != os.O_RDONLY:
+            return -errno.EACCES
+
+    def read(self, path: str, size: int, offset: int) -> bytes | int:
+        if path != hello_path:
+            return -errno.ENOENT
+        slen = len(hello_str)
+        if offset < slen:
+            if offset + size > slen:
+                size = slen - offset
+            buf = hello_str[offset:offset+size]
+        else:
+            buf = b''
+        return buf
+
+HELP="""
+Userspace hello example
+
+""" + fuse.Fuse.fusage
+
+def start_favro_fuse(favro_client: FavroClient):
+    # TODO:
+    server = FavroFuse(
+            favro_client = favro_client,
+            version='%prog ' + fuse.__version__,
+                     usage=HELP,
+                     dash_s_do='setsingle')
+    server.parse(errex=1)
+    server.main()