feat: projects and boards

services/project.py

@@ -0,0 +1,73 @@
+from datetime import datetime
+
+from sqlalchemy import select, update, func, delete, and_
+
+from models import Project, Board
+from schemas.project import *
+from services.base import BaseService
+
+
+class ProjectService(BaseService):
+    async def get_projects(self) -> GetProjectsResponse:
+        boards_sub = (
+            select(Board)
+            .where(Board.is_deleted == False)
+            .subquery()
+        )
+        stmt = (
+            select(
+                Project.id,
+                Project.name,
+                func.count(boards_sub.c.id)
+            )
+            .join(boards_sub, Project.id == boards_sub.c.project_id, isouter=True)
+            .where(Project.is_deleted == False)
+            .group_by(Project.id, Project.name)
+            .order_by(Project.name)
+        )
+        project_data = (await self.session.execute(stmt)).all()
+
+        projects = []
+        for project_id, name, boards_count in project_data:
+            project = ProjectSchemaWithCount(id=project_id, name=name, boards_count=boards_count)
+            projects.append(project)
+
+        return GetProjectsResponse(projects=projects)
+
+    async def create_project(self, request: CreateProjectRequest) -> CreateProjectResponse:
+        project = Project(
+            name=request.project.name,
+            created_at=datetime.now(),
+        )
+        self.session.add(project)
+        await self.session.commit()
+        return UpdateProjectResponse(ok=True, message="Проект успешно создан")
+
+    async def update_project(self, request: UpdateProjectRequest) -> UpdateProjectResponse:
+        stmt = (
+            update(Project)
+            .where(Project.id == request.project.id)
+            .values(name=request.project.name)
+        )
+        await self.session.execute(stmt)
+        await self.session.commit()
+
+        return UpdateProjectResponse(ok=True, message="Проект успешно изменен")
+
+    async def delete_project(self, project_id: int) -> DeleteProjectResponse:
+        stmt_boards = select(Board).where(Board.project_id == project_id)
+        boards = (await self.session.scalars(stmt_boards)).all()
+        if len(boards) == 0:
+            stmt = (
+                delete(Project)
+                .where(Project.id == project_id)
+            )
+        else:
+            stmt = (
+                update(Project)
+                .where(Project.id == project_id)
+                .values(is_deleted=True)
+            )
+        await self.session.execute(stmt)
+        await self.session.commit()
+        return DeleteProjectResponse(ok=True, message="Проект успешно удален")