commit 2c91d5d5ff2d823035cb85f5add04b68e2ba0474
Author: Kurbanov Bulat <kurbanovbul@gmail.com>
Date:   Thu Nov 18 21:48:59 2021 +0300

    Init

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..6e969e6
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,5 @@
+__pycache__
+
+venv
+
+.vscode
diff --git a/docker/build.dockerfile b/docker/build.dockerfile
new file mode 100644
index 0000000..e9ff8d4
--- /dev/null
+++ b/docker/build.dockerfile
@@ -0,0 +1,32 @@
+FROM python:3.10-slim as build-image
+
+RUN apt-get update \
+    && apt-get install --no-install-recommends -y gcc build-essential python3-dev libpq-dev libffi-dev \
+    && rm -rf /var/lib/apt/lists/*
+
+WORKDIR /
+COPY ./requirements.txt ./
+
+ENV VENV_PATH=/opt/venv
+RUN python -m venv $VENV_PATH \
+    && . "${VENV_PATH}/bin/activate" \
+    && pip install -r requirements.txt --no-cache-dir
+
+
+FROM python:3.10-slim as runtime-image
+
+RUN apt-get update \
+    && apt-get install --no-install-recommends -y wget python3-dev libpq-dev libffi-dev default-mysql-client-core \
+    && rm -rf /var/lib/apt/lists/*
+
+COPY ./src/ /app/
+
+ENV VENV_PATH=/opt/venv
+COPY --from=build-image $VENV_PATH $VENV_PATH
+ENV PATH="$VENV_PATH/bin:$PATH"
+
+EXPOSE 8080
+
+WORKDIR /app/
+
+CMD uvicorn main:app --host="0.0.0.0" --port="8080"
diff --git a/requirements.txt b/requirements.txt
new file mode 100644
index 0000000..3663d67
--- /dev/null
+++ b/requirements.txt
@@ -0,0 +1,6 @@
+fastapi
+pydantic[dotenv]
+asyncpg
+aiomysql
+uvicorn[standart]
+aiologger
diff --git a/src/app/depends.py b/src/app/depends.py
new file mode 100644
index 0000000..b99768e
--- /dev/null
+++ b/src/app/depends.py
@@ -0,0 +1,9 @@
+from fastapi import Security, HTTPException, status
+
+from core.auth import default_security
+from core.config import env_config
+
+
+async def check_token(api_key: str = Security(default_security)):
+    if api_key != env_config.API_KEY:
+        raise HTTPException(status_code=status.HTTP_403_FORBIDDEN, detail="Wrong api key!")
diff --git a/src/app/services/updaters/__init__.py b/src/app/services/updaters/__init__.py
new file mode 100644
index 0000000..289f7f3
--- /dev/null
+++ b/src/app/services/updaters/__init__.py
@@ -0,0 +1,13 @@
+from enum import Enum
+
+from app.services.updaters.base import BaseUpdater
+from app.services.updaters.flibusta_updater import FlibustaUpdater
+
+
+class UpdaterTypes(Enum):
+    FLIBUSTA = 'flibusta'
+
+
+UPDATERS: dict[UpdaterTypes, BaseUpdater] = {
+    UpdaterTypes.FLIBUSTA: FlibustaUpdater
+}
diff --git a/src/app/services/updaters/base.py b/src/app/services/updaters/base.py
new file mode 100644
index 0000000..57eca09
--- /dev/null
+++ b/src/app/services/updaters/base.py
@@ -0,0 +1,7 @@
+from typing import Protocol
+
+
+class BaseUpdater(Protocol):
+    @classmethod
+    async def update(cls) -> bool:
+        ...
diff --git a/src/app/services/updaters/flibusta_updater.py b/src/app/services/updaters/flibusta_updater.py
new file mode 100644
index 0000000..b4bbae9
--- /dev/null
+++ b/src/app/services/updaters/flibusta_updater.py
@@ -0,0 +1,482 @@
+from typing import Optional
+import asyncio
+import platform
+
+import asyncpg
+import aiomysql
+from aiologger import Logger
+
+from core.config import env_config
+from app.services.updaters.base import BaseUpdater
+
+
+async def run(cmd) -> tuple[bytes, bytes, Optional[int]]:
+    proc = await asyncio.create_subprocess_shell(
+        cmd,
+        stdout=asyncio.subprocess.PIPE,
+        stderr=asyncio.subprocess.PIPE)
+
+    stdout, stderr = await proc.communicate()
+    return stdout, stderr, proc.returncode
+
+
+def remove_wrong_ch(s: str):
+    return s.replace(";", "").replace("\n", " ").replace('ё', 'е')
+
+
+def remove_dots(s: str):
+    return s.replace('.', '')
+
+
+class FlibustaUpdater(BaseUpdater):
+    SOURCE: int
+
+    FILES = [
+        'lib.libavtor.sql',
+        'lib.libbook.sql',
+        'lib.libavtorname.sql',
+        'lib.libtranslator.sql',
+        'lib.libseqname.sql',
+        'lib.libseq.sql',
+        'lib.libgenre.sql',
+        'lib.libgenrelist.sql',
+        'lib.b.annotations.sql',
+        'lib.b.annotations_pics.sql',
+        'lib.a.annotations.sql',
+        'lib.a.annotations_pics.sql',
+    ]
+
+    postgres_pool: asyncpg.Pool
+    mysql_pool: aiomysql.Pool
+
+    authors_updated_event: asyncio.Event
+    books_updated_event: asyncio.Event
+    sequences_updated_event: asyncio.Event
+    genres_updated_event: asyncio.Event
+
+    platform: str
+    logger: Logger
+
+    async def log(self, message):
+        if 'windows' in self.platform.lower():
+            print(message)
+        else:
+            await self.logger.info(message)
+
+    async def _drop_tables(self):
+        async with self.mysql_pool.acquire() as conn:
+            async with conn.cursor() as cursor:
+                cursor.execute(
+                    "DROP TABLE IF EXISTS libaannotations;"
+                    "DROP TABLE IF EXISTS libapics;"
+                    "DROP TABLE IF EXISTS libavtor;"
+                    "DROP TABLE IF EXISTS libavtorname;"
+                    "DROP TABLE IF EXISTS libbannotations;"
+                    "DROP TABLE IF EXISTS libbook;"
+                    "DROP TABLE IF EXISTS libbpics;"
+                    "DROP TABLE IF EXISTS libgenre;"
+                    "DROP TABLE IF EXISTS libgenrelist;"
+                    "DROP TABLE IF EXISTS libseq;"
+                    "DROP TABLE IF EXISTS libseqname;"
+                    "DROP TABLE IF EXISTS libtranslator;"
+                )
+
+    async def _import_dump(self, filename: str):
+        result = await run(
+            f"wget -O - http://flibusta.is/sql/{filename}.gz | gunzip | "
+            f"mysql -h {env_config.MYSQL_HOST} -u {env_config.MYSQL_USER} "
+            f"-p\"{env_config.MYSQL_PASSWORD}\" {env_config.MYSQL_DB_NAME}"
+        )
+        await self.log(f"Imported {filename}: {result}.")
+
+    async def _prepare(self):
+        posgres_pool = await asyncpg.create_pool(
+            database=env_config.POSTGRES_DB_NAME,
+            host=env_config.POSTGRES_HOST,
+            port=env_config.POSTGRES_PORT,
+            user=env_config.POSTGRES_USER,
+            password=env_config.POSTGRES_PASSWORD,
+        )
+
+        self.mysql_pool = await aiomysql.create_pool(
+            db=env_config.MYSQL_DB_NAME,
+            host=env_config.MYSQL_HOST,
+            port=env_config.MYSQL_PORT,
+            user=env_config.MYSQL_USER,
+            password=env_config.MYSQL_PASSWORD,
+        )
+
+        if not posgres_pool:
+            raise asyncpg.exceptions.PostgresConnectionError()
+
+        self.postgres_pool = posgres_pool
+
+    async def _set_source(self):
+        await self.log('Set source...')
+
+        source_row = await self.postgres_pool.fetchrow(
+            "SELECT id FROM sources WHERE name = 'flibusta';"
+        )
+
+        if not source_row:
+            await self.postgres_pool.execute(
+                "INSERT INTO sources (name) VALUES ('flibusta');"
+            )
+
+            source_row = await self.postgres_pool.fetchrow(
+                "SELECT id FROM sources WHERE name = 'flibusta';"
+            )
+
+        self.SOURCE = source_row['id']
+
+        await self.log("Source has set!")
+
+    async def _update_authors(self):
+        def prepare_author(row: list):
+            return [
+                self.SOURCE,
+                row[0],
+                remove_wrong_ch(row[1]),
+                remove_wrong_ch(row[2]),
+                remove_wrong_ch(row[3])
+            ]
+
+        await self.log("Update authors...")
+
+        async with self.mysql_pool.acquire() as conn:
+            async with conn.cursor() as cursor:
+                await cursor.execute(
+                    "SELECT AvtorId, FirstName, MiddleName, LastName FROM libavtorname;"
+                )
+
+                while (rows := await cursor.fetchmany(32)):
+                    await self.postgres_pool.executemany(
+                        "INSERT INTO authors (source, remote_id, first_name, last_name, middle_name) "
+                        "VALUES ($1, $2, cast($3 as varchar), cast($4 as varchar), cast($5 as varchar)) "
+                        "ON CONFLICT (source, remote_id) "
+                        "DO UPDATE SET first_name = EXCLUDED.first_name, last_name = EXCLUDED.last_name, middle_name = EXCLUDED.middle_name;",
+                        [prepare_author(row) for row in rows]
+                    )
+        
+        self.authors_updated_event.set()
+
+        await self.log("Authors updated!")
+
+    async def _update_books(self):
+        def prepare_book(row: list):
+            return [
+                self.SOURCE,
+                row[0],
+                remove_wrong_ch(row[1]),
+                row[2],
+                row[3],
+                row[4],
+                row[5] == '1'
+            ]
+
+        await self.log("Update books...")
+
+        async with self.mysql_pool.acquire() as conn:
+            async with conn.cursor() as cursor:
+                await cursor.execute(
+                    "SELECT BookId, Title, Lang, FileType, Time, Deleted FROM libbook;"
+                )
+
+                while (rows := await cursor.fetchmany(32)):
+                    await self.postgres_pool.executemany(
+                        "INSERT INTO books (source, remote_id, title, lang, file_type, uploaded, is_deleted) "
+                        "VALUES ($1, $2, cast($3 as varchar), cast($4 as varchar), cast($5 as varchar), $6, $7) "
+                        "ON CONFLICT (source, remote_id) "
+                        "DO UPDATE SET title = EXCLUDED.title, lang = EXCLUDED.lang, file_type = EXCLUDED.file_type, "
+                        "uploaded = EXCLUDED.uploaded, is_deleted = EXCLUDED.is_deleted;",
+                        [prepare_book(row) for row in rows]
+                    )
+        
+        self.books_updated_event.set()
+
+        await self.log("Books updated!")
+
+    async def _update_books_authors(self):
+        await self.books_updated_event.wait()
+        await self.authors_updated_event.wait()
+
+        await self.log("Update books_authors...")
+
+        async with self.mysql_pool.acquire() as conn:
+            async with conn.cursor() as cursor:
+                await cursor.execute(
+                    "SELECT BookId, AvtorId FROM libavtor;"
+                )
+
+                while (rows := await cursor.fetchmany(32)):
+                    await self.postgres_pool.executemany(
+                        "INSERT INTO book_authors (book, author) "
+                        "SELECT "
+                        "(SELECT id FROM books WHERE source = $1 AND remote_id = $2), "
+                        "(SELECT id FROM authors WHERE source = $1 AND remote_id = $3) "
+                        "ON CONFLICT (book, author) DO NOTHING;",
+                        [(self.SOURCE, *row) for row in rows]
+                    )
+
+        await self.log("Books_authors updated!")
+
+    async def _update_translations(self):
+        await self.books_updated_event.wait()
+        await self.authors_updated_event.wait()
+
+        await self.log("Update translations...")
+
+        async with self.mysql_pool.acquire() as conn:
+            async with conn.cursor() as cursor:
+                await cursor.execute(
+                    "SELECT BookId, TranslatorId, Pos FROM libtranslator "
+                    "WHERE BookId IN (SELECT BookId FROM libbook);"
+                )
+
+                while (rows := await cursor.fetchmany(32)):
+                    await self.postgres_pool.executemany(
+                        "INSERT INTO translations (book, author, position) "
+                        "SELECT "
+                        "(SELECT id FROM books WHERE source = $1 AND remote_id = $2), "
+                        "(SELECT id FROM authors WHERE source = $1 AND remote_id = $3), "
+                        "$4 "
+                        "ON CONFLICT (book, author) "
+                        "DO UPDATE SET position = EXCLUDED.position;",
+                        [(self.SOURCE, *row) for row in rows]
+                    )
+
+        await self.log("Translations updated!")
+
+    async def _update_sequences(self):
+        def prepare_sequence(row: list):
+            return [
+                self.SOURCE,
+                row[0],
+                remove_wrong_ch(row[1]),
+            ]
+
+        await self.log("Update sequences...")
+
+        async with self.mysql_pool.acquire() as conn:
+            async with conn.cursor() as cursor:
+                await cursor.execute(
+                    "SELECT SeqId, SeqName FROM libseqname;"
+                )
+
+                while (rows := await cursor.fetchmany(32)):
+                    await self.postgres_pool.executemany(
+                        "INSERT INTO sequences (source, remote_id, name) "
+                        "VALUES ($1, $2, cast($3 as varchar)) "
+                        "ON CONFLICT (source, remote_id) "
+                        "DO UPDATE SET name = EXCLUDED.name;",
+                        [prepare_sequence(row) for row in rows]
+                    )
+
+        self.sequences_updated_event.set()
+
+        await self.log("Sequences updated!")
+
+    async def _update_sequences_info(self):
+        await self.sequences_updated_event.wait()
+        await self.books_updated_event.wait()
+
+        await self.log("Update book_sequences...")
+
+        async with self.mysql_pool.acquire() as conn:
+            async with conn.cursor() as cursor:
+                await cursor.execute(
+                    "SELECT BookId, SeqId, level FROM libseq "
+                    "WHERE "
+                    "BookId IN (SELECT BookId FROM libbook) AND "
+                    "SeqId IN (SELECT SeqId FROM libseqname);"
+                )
+
+                while (rows := await cursor.fetchmany(32)):
+                    await self.postgres_pool.executemany(
+                        "INSERT INTO book_sequences (book, sequence, position) "
+                        "SELECT "
+                        "(SELECT id FROM books WHERE source = $1 AND remote_id = $2), "
+                        "(SELECT id FROM sequences WHERE source = $1 AND remote_id = $3), "
+                        "$4 "
+                        "ON CONFLICT (book, sequence) "
+                        "DO UPDATE SET position = EXCLUDED.position;",
+                        [[self.SOURCE, *row] for row in rows]
+                    )
+
+        await self.log("Book_sequences updated!")
+
+    async def _update_book_annotations(self):
+        await self.books_updated_event.wait()
+
+        await self.log("Update book_annotations...")
+
+        async with self.mysql_pool.acquire() as conn:
+            async with conn.cursor() as cursor:
+                await cursor.execute(
+                    "SELECT BookId, Title, Body FROM libbannotations "
+                    "WHERE BookId IN (SELECT BookId FROM libbook);"
+                )
+
+                while (rows := await cursor.fetchmany(32)):
+                    await self.postgres_pool.executemany(
+                        "INSERT INTO book_annotations (book, title, text) "
+                        "SELECT "
+                        "(SELECT id FROM books WHERE source = $1 AND remote_id = $2), "
+                        "$3, $4 "
+                        "ON CONFLICT (book) "
+                        "DO UPDATE SET title = EXCLUDED.title, text = EXCLUDED.text;",
+                        [[self.SOURCE, *row] for row in rows]
+                    )
+
+        await self.log("Book_annotations updated!")
+
+        await self._update_book_annotations_pic()
+
+    async def _update_book_annotations_pic(self):
+        await self.log("Update book_annotations_pic...")
+
+        async with self.mysql_pool.acquire() as conn:
+            async with conn.cursor() as cursor:
+                await cursor.execute(
+                    "SELECT BookId, File FROM libbpics;"
+                )
+
+                while (rows := await cursor.fetchmany(32)):
+                    await self.postgres_pool.executemany(
+                        "UPDATE book_annotations "
+                        "SET file = cast($3 as varchar) "
+                        "FROM (SELECT id FROM books WHERE source = $1 AND remote_id = $2) as books "
+                        "WHERE book = books.id;",
+                        [[self.SOURCE, *row] for row in rows]
+                    )
+
+        await self.log("Book_annotation_pics updated!")
+
+    async def _update_author_annotations(self):
+        await self.authors_updated_event.wait()
+
+        await self.log("Update author_annotations...")
+
+        async with self.mysql_pool.acquire() as conn:
+            async with conn.cursor() as cursor:
+                await cursor.execute(
+                    "SELECT AvtorId, Title, Body FROM libaannotations;"
+                )
+
+                while (rows := await cursor.fetchmany(32)):
+                    await self.postgres_pool.executemany(
+                        "INSERT INTO author_annotations (author, title, text) "
+                        "SELECT "
+                        "(SELECT id FROM authors WHERE source = $1 AND remote_id = $2), "
+                        "$3, $4 "
+                        "ON CONFLICT (author) "
+                        "DO UPDATE SET title = EXCLUDED.title, text = EXCLUDED.text;",
+                        [[self.SOURCE, *row] for row in rows]
+                    )
+
+        await self.log("Author_annotation_updated!")
+
+        await self._update_author_annotations_pics()
+
+    async def _update_author_annotations_pics(self):
+        await self.log("Update author_annotations_pic...")
+
+        async with self.mysql_pool.acquire() as conn:
+            async with conn.cursor() as cursor:
+                await cursor.execute(
+                    "SELECT AvtorId, File FROM libapics;"
+                )
+
+                while (rows := await cursor.fetchmany(32)):
+                    await self.postgres_pool.executemany(
+                        "UPDATE author_annotations "
+                        "SET file = cast($3 as varchar) "
+                        "FROM (SELECT id FROM authors WHERE source = $1 AND remote_id = $2) as authors "
+                        "WHERE author = authors.id;",
+                        [[self.SOURCE, *row] for row in rows]
+                    )
+
+        await self.log("Author_annotatioins_pic updated!")
+
+    async def _update_genres(self):
+        await self.log("Update genres...")
+
+        async with self.mysql_pool.acquire() as conn:
+            async with conn.cursor() as cursor:
+                await cursor.execute(
+                    "SELECT GenreId, GenreCode, GenreDesc, GenreMeta FROM libgenrelist;"
+                )
+
+                while (rows := await cursor.fetchmany(32)):
+                    await self.postgres_pool.executemany(
+                        "INSERT INTO genres (source, remote_id, code, description, meta) "
+                        "VALUES ($1, $2, cast($3 as varchar), cast($4 as varchar), cast($5 as varchar)) "
+                        "ON CONFLICT (source, remote_id) "
+                        "DO UPDATE SET code = EXCLUDED.code, description = EXCLUDED.description, meta = EXCLUDED.meta;",
+                        [[self.SOURCE, *row] for row in rows]
+                    )
+
+        await self.log("Genres updated!")
+
+    async def _update_books_genres(self):
+        await self.books_updated_event.wait()
+        await self.genres_updated_event.wait()
+
+        await self.log("Update book_genres...")
+
+        async with self.mysql_pool.acquire() as conn:
+            async with conn.cursor() as cursor:
+                await cursor.execute(
+                    "SELECT BookId, GenreId FROM libgenre;"
+                )
+
+                while (rows := await cursor.fetchmany(32)):
+                    await self.postgres_pool.executemany(
+                        "INSERT INTO book_genres (book, genre) "
+                        "SELECT "
+                        "(SELECT id FROM books WHERE source = $1 AND remote_id = $2), "
+                        "(SELECT id FROM genres WHERE source = $1 AND remote_id = $3) "
+                        "ON CONFLICT (book, author) DO NOTHING;",
+                        [(self.SOURCE, *row) for row in rows]
+                    )
+
+        await self.log("Book_genres updated!")
+
+    async def _update(self) -> bool:
+        self.platform = platform.platform()
+        self.logger = Logger.with_default_handlers()
+
+        await self._prepare()
+
+        await self._drop_tables()
+
+        await asyncio.gather(
+            *[self._import_dump(filename) for filename in self.FILES]
+        )
+
+        await self._set_source()
+
+        self.authors_updated_event = asyncio.Event()
+        self.books_updated_event = asyncio.Event()
+        self.sequences_updated_event = asyncio.Event()
+        self.genres_updated_event = asyncio.Event()
+
+        await asyncio.gather(
+            self._update_authors(),
+            self._update_books(),
+            self._update_books_authors(),
+            self._update_translations(),
+            self._update_sequences(),
+            self._update_sequences_info(),
+            self._update_book_annotations(),
+            self._update_author_annotations(),
+            self._update_genres(),
+            self._update_books_genres()
+        )
+
+        return True
+
+    @classmethod
+    async def update(cls) -> bool:
+        updater = cls()
+        return await updater._update()
diff --git a/src/app/views.py b/src/app/views.py
new file mode 100644
index 0000000..4ff99f2
--- /dev/null
+++ b/src/app/views.py
@@ -0,0 +1,21 @@
+from fastapi import APIRouter, BackgroundTasks, Depends
+
+from app.services.updaters import UpdaterTypes, UPDATERS
+from app.depends import check_token
+
+
+router = APIRouter(
+    tags=["updater"],
+    dependencies=[Depends(check_token)]
+)
+
+
+@router.post("/update/{updater}")
+async def update(updater: UpdaterTypes, background_tasks: BackgroundTasks):
+    updater_ = UPDATERS[updater]
+
+    background_tasks.add_task(
+        updater_.update
+    )
+
+    return True
diff --git a/src/core/app.py b/src/core/app.py
new file mode 100644
index 0000000..4f37812
--- /dev/null
+++ b/src/core/app.py
@@ -0,0 +1,11 @@
+from fastapi import FastAPI
+
+from app.views import router
+
+
+def start_app() -> FastAPI:
+    app = FastAPI()
+
+    app.include_router(router)
+
+    return app
diff --git a/src/core/auth.py b/src/core/auth.py
new file mode 100644
index 0000000..7cc07b5
--- /dev/null
+++ b/src/core/auth.py
@@ -0,0 +1,4 @@
+from fastapi.security import APIKeyHeader
+
+
+default_security = APIKeyHeader(name="Authorization")
diff --git a/src/core/config.py b/src/core/config.py
new file mode 100644
index 0000000..d7a2ed1
--- /dev/null
+++ b/src/core/config.py
@@ -0,0 +1,20 @@
+from pydantic import BaseSettings
+
+
+class EnvConfig(BaseSettings):
+    API_KEY: str
+
+    POSTGRES_DB_NAME: str
+    POSTGRES_HOST: str
+    POSTGRES_PORT: int
+    POSTGRES_USER: str
+    POSTGRES_PASSWORD: str
+
+    MYSQL_DB_NAME: str
+    MYSQL_HOST: str
+    MYSQL_PORT: int
+    MYSQL_USER: str
+    MYSQL_PASSWORD: str
+
+
+env_config = EnvConfig()
diff --git a/src/main.py b/src/main.py
new file mode 100644
index 0000000..2739482
--- /dev/null
+++ b/src/main.py
@@ -0,0 +1,3 @@
+from core.app import start_app
+
+app = start_app()