Absolute imports & some other improvements (#243)

* Use absolute imports and rename package to ihatemoney
* Add a ihatemoney command
* Factorize application creation logic
* Refactor the tests
* Update the wsgi.py module with the new create_app() function
* Fix some styling thanks to Flake8.
* Automate Flake8 check in the CI.

1 files changed, 154 insertions, 0 deletions

diff --git a/ihatemoney/api.py b/ihatemoney/api.py
new file mode 100644
index 0000000..a34fa12
--- /dev/null
+++ b/ihatemoney/api.py
@@ -0,0 +1,154 @@
+# -*- coding: utf-8 -*-
+from flask import Blueprint, request
+from flask_rest import RESTResource, need_auth
+
+from ihatemoney.models import db, Project, Person, Bill
+from ihatemoney.forms import (ProjectForm, EditProjectForm, MemberForm,
+                              get_billform_for)
+
+
+api = Blueprint("api", __name__, url_prefix="/api")
+
+
+def check_project(*args, **kwargs):
+    """Check the request for basic authentication for a given project.
+
+    Return the project if the authorization is good, False otherwise
+    """
+    auth = request.authorization
+
+    # project_id should be contained in kwargs and equal to the username
+    if auth and "project_id" in kwargs and \
+            auth.username == kwargs["project_id"]:
+        project = Project.query.get(auth.username)
+        if project and project.password == auth.password:
+            return project
+    return False
+
+
+class ProjectHandler(object):
+
+    def add(self):
+        form = ProjectForm(meta={'csrf': False})
+        if form.validate():
+            project = form.save()
+            db.session.add(project)
+            db.session.commit()
+            return 201, project.id
+        return 400, form.errors
+
+    @need_auth(check_project, "project")
+    def get(self, project):
+        return 200, project
+
+    @need_auth(check_project, "project")
+    def delete(self, project):
+        db.session.delete(project)
+        db.session.commit()
+        return 200, "DELETED"
+
+    @need_auth(check_project, "project")
+    def update(self, project):
+        form = EditProjectForm(meta={'csrf': False})
+        if form.validate():
+            form.update(project)
+            db.session.commit()
+            return 200, "UPDATED"
+        return 400, form.errors
+
+
+class MemberHandler(object):
+
+    def get(self, project, member_id):
+        member = Person.query.get(member_id, project)
+        if not member or member.project != project:
+            return 404, "Not Found"
+        return 200, member
+
+    def list(self, project):
+        return 200, project.members
+
+    def add(self, project):
+        form = MemberForm(project, meta={'csrf': False})
+        if form.validate():
+            member = Person()
+            form.save(project, member)
+            db.session.commit()
+            return 201, member.id
+        return 400, form.errors
+
+    def update(self, project, member_id):
+        form = MemberForm(project, meta={'csrf': False})
+        if form.validate():
+            member = Person.query.get(member_id, project)
+            form.save(project, member)
+            db.session.commit()
+            return 200, member
+        return 400, form.errors
+
+    def delete(self, project, member_id):
+        if project.remove_member(member_id):
+            return 200, "OK"
+        return 404, "Not Found"
+
+
+class BillHandler(object):
+
+    def get(self, project, bill_id):
+        bill = Bill.query.get(project, bill_id)
+        if not bill:
+            return 404, "Not Found"
+        return 200, bill
+
+    def list(self, project):
+        return project.get_bills().all()
+
+    def add(self, project):
+        form = get_billform_for(project, True, meta={'csrf': False})
+        if form.validate():
+            bill = Bill()
+            form.save(bill, project)
+            db.session.add(bill)
+            db.session.commit()
+            return 201, bill.id
+        return 400, form.errors
+
+    def update(self, project, bill_id):
+        form = get_billform_for(project, True, meta={'csrf': False})
+        if form.validate():
+            bill = Bill.query.get(project, bill_id)
+            form.save(bill, project)
+            db.session.commit()
+            return 200, bill.id
+        return 400, form.errors
+
+    def delete(self, project, bill_id):
+        bill = Bill.query.delete(project, bill_id)
+        db.session.commit()
+        if not bill:
+            return 404, "Not Found"
+        return 200, "OK"
+
+
+project_resource = RESTResource(
+    name="project",
+    route="/projects",
+    app=api,
+    actions=["add", "update", "delete", "get"],
+    handler=ProjectHandler())
+
+member_resource = RESTResource(
+    name="member",
+    inject_name="project",
+    route="/projects/<project_id>/members",
+    app=api,
+    handler=MemberHandler(),
+    authentifier=check_project)
+
+bill_resource = RESTResource(
+    name="bill",
+    inject_name="project",
+    route="/projects/<project_id>/bills",
+    app=api,
+    handler=BillHandler(),
+    authentifier=check_project)