migrate to postgres

alembic.ini

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+# A generic, single database configuration.
+
+[alembic]
+# path to migration scripts
+script_location = alembic
+
+# template used to generate migration files
+# file_template = %%(rev)s_%%(slug)s
+
+# timezone to use when rendering the date
+# within the migration file as well as the filename.
+# string value is passed to dateutil.tz.gettz()
+# leave blank for localtime
+# timezone =
+
+# max length of characters to apply to the
+# "slug" field
+# truncate_slug_length = 40
+
+# set to 'true' to run the environment during
+# the 'revision' command, regardless of autogenerate
+# revision_environment = false
+
+# set to 'true' to allow .pyc and .pyo files without
+# a source .py file to be detected as revisions in the
+# versions/ directory
+# sourceless = false
+
+# version location specification; this defaults
+# to alembic/versions.  When using multiple version
+# directories, initial revisions must be specified with --version-path
+# version_locations = %(here)s/bar %(here)s/bat alembic/versions
+
+# the output encoding used when revision files
+# are written from script.py.mako
+# output_encoding = utf-8
+
+sqlalchemy.url = postgresql://wotstats@localhost/wotstats
+
+
+[post_write_hooks]
+# post_write_hooks defines scripts or Python functions that are run
+# on newly generated revision scripts.  See the documentation for further
+# detail and examples
+
+# format using "black" - use the console_scripts runner, against the "black" entrypoint
+# hooks=black
+# black.type=console_scripts
+# black.entrypoint=black
+# black.options=-l 79
+
+# Logging configuration
+[loggers]
+keys = root,sqlalchemy,alembic
+
+[handlers]
+keys = console
+
+[formatters]
+keys = generic
+
+[logger_root]
+level = WARN
+handlers = console
+qualname =
+
+[logger_sqlalchemy]
+level = WARN
+handlers =
+qualname = sqlalchemy.engine
+
+[logger_alembic]
+level = INFO
+handlers =
+qualname = alembic
+
+[handler_console]
+class = StreamHandler
+args = (sys.stderr,)
+level = NOTSET
+formatter = generic
+
+[formatter_generic]
+format = %(levelname)-5.5s [%(name)s] %(message)s
+datefmt = %H:%M:%S

alembic/README

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+Generic single-database configuration.

alembic/env.py

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+from logging.config import fileConfig
+
+from sqlalchemy import engine_from_config
+from sqlalchemy import pool
+
+from alembic import context
+
+# this is the Alembic Config object, which provides
+# access to the values within the .ini file in use.
+config = context.config
+
+# Interpret the config file for Python logging.
+# This line sets up loggers basically.
+fileConfig(config.config_file_name)
+
+# add your model's MetaData object here
+# for 'autogenerate' support
+# from myapp import mymodel
+# target_metadata = mymodel.Base.metadata
+target_metadata = None
+
+# other values from the config, defined by the needs of env.py,
+# can be acquired:
+# my_important_option = config.get_main_option("my_important_option")
+# ... etc.
+
+
+def run_migrations_offline():
+    """Run migrations in 'offline' mode.
+
+    This configures the context with just a URL
+    and not an Engine, though an Engine is acceptable
+    here as well.  By skipping the Engine creation
+    we don't even need a DBAPI to be available.
+
+    Calls to context.execute() here emit the given string to the
+    script output.
+
+    """
+    url = config.get_main_option("sqlalchemy.url")
+    context.configure(
+        url=url,
+        target_metadata=target_metadata,
+        literal_binds=True,
+        dialect_opts={"paramstyle": "named"},
+    )
+
+    with context.begin_transaction():
+        context.run_migrations()
+
+
+def run_migrations_online():
+    """Run migrations in 'online' mode.
+
+    In this scenario we need to create an Engine
+    and associate a connection with the context.
+
+    """
+    connectable = engine_from_config(
+        config.get_section(config.config_ini_section),
+        prefix="sqlalchemy.",
+        poolclass=pool.NullPool,
+    )
+
+    with connectable.connect() as connection:
+        context.configure(
+            connection=connection, target_metadata=target_metadata
+        )
+
+        with context.begin_transaction():
+            context.run_migrations()
+
+
+if context.is_offline_mode():
+    run_migrations_offline()
+else:
+    run_migrations_online()

alembic/script.py.mako

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+"""${message}
+
+Revision ID: ${up_revision}
+Revises: ${down_revision | comma,n}
+Create Date: ${create_date}
+
+"""
+from alembic import op
+import sqlalchemy as sa
+${imports if imports else ""}
+
+# revision identifiers, used by Alembic.
+revision = ${repr(up_revision)}
+down_revision = ${repr(down_revision)}
+branch_labels = ${repr(branch_labels)}
+depends_on = ${repr(depends_on)}
+
+
+def upgrade():
+    ${upgrades if upgrades else "pass"}
+
+
+def downgrade():
+    ${downgrades if downgrades else "pass"}

alembic/versions/9d1bc39b8198_create_statistics_table.py

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+"""create statistics table
+
+Revision ID: 9d1bc39b8198
+Revises: 
+Create Date: 2020-09-10 18:53:24.112358
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '9d1bc39b8198'
+down_revision = None
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    op.create_table(
+        "statistics",
+        sa.Column("account_id", sa.Integer, primary_key=True),
+        sa.Column("battles_on_stunning_vehicles", sa.Integer),
+        sa.Column("spotted", sa.Integer),
+        sa.Column("avg_damage_blocked", sa.Float),
+        sa.Column("direct_hits_received", sa.Integer),
+        sa.Column("explosion_hits", sa.Integer),
+        sa.Column("piercings", sa.Integer),
+        sa.Column("xp", sa.Integer),
+        sa.Column("avg_damage_assisted", sa.Float),
+        sa.Column("dropped_capture_points", sa.Integer),
+        sa.Column("piercings_received", sa.Integer),
+        sa.Column("hits_percents", sa.Integer),
+        sa.Column("draws", sa.Integer),
+        sa.Column("battles", sa.Integer),
+        sa.Column("damage_received", sa.Integer),
+        sa.Column("survived_battles", sa.Integer),
+        sa.Column("avg_damage_assisted_track", sa.Float),
+        sa.Column("frags", sa.Integer),
+        sa.Column("stun_number", sa.Integer),
+        sa.Column("avg_damage_assisted_radio", sa.Float),
+        sa.Column("capture_points", sa.Integer),
+        sa.Column("stun_assisted_damage", sa.Integer),
+        sa.Column("hits", sa.Integer),
+        sa.Column("battle_avg_xp", sa.Integer),
+        sa.Column("wins", sa.Integer),
+        sa.Column("losses", sa.Integer),
+        sa.Column("damage_dealt", sa.Integer),
+        sa.Column("no_damage_direct_hits_received", sa.Integer),
+        sa.Column("shots", sa.Integer),
+        sa.Column("explosion_hits_received", sa.Integer),
+        sa.Column("tanking_factor", sa.Numeric(2)),
+        sa.Column("trees_cut", sa.Integer),
+        sa.Column("last_battle_time", sa.DateTime(timezone=True)),
+        sa.Column("updated_at", sa.DateTime(timezone=True), primary_key=True),
+        sa.Column("global_rating", sa.Integer),
+        sa.Column("clan_id", sa.Integer),
+        sa.Column("nickname", sa.String),
+        sa.Column("logout_at", sa.DateTime(timezone=True)),
+    )
+
+
+def downgrade():
+    op.drop_table("statistics")

wotstats/api.py

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+import json
+from collections.abc import MutableMapping
+from datetime import datetime
+from enum import Enum
+from typing import Sequence
+from urllib.parse import urljoin
+from urllib.request import urlopen
+
+FIELDS = [
+    "last_battle_time",
+    "updated_at",
+    "global_rating",
+    "clan_id",
+    "statistics.trees_cut",
+    "statistics.random.spotted",
+    "statistics.random.battles_on_stunning_vehicles",
+    "statistics.random.avg_damage_blocked",
+    "statistics.random.capture_points",
+    "statistics.random.explosion_hits",
+    "statistics.random.piercings",
+    "statistics.random.xp",
+    "statistics.random.avg_damage_assisted",
+    "statistics.random.dropped_capture_points",
+    "statistics.random.damage_dealt",
+    "statistics.random.hits_percents",
+    "statistics.random.draws",
+    "statistics.random.tanking_factor",
+    "statistics.random.battles",
+    "statistics.random.damage_received",
+    "statistics.random.survived_battles",
+    "statistics.random.frags",
+    "statistics.random.stun_number",
+    "statistics.random.avg_damage_assisted_radio",
+    "statistics.random.direct_hits_received",
+    "statistics.random.stun_assisted_damage",
+    "statistics.random.hits",
+    "statistics.random.battle_avg_xp",
+    "statistics.random.wins",
+    "statistics.random.losses",
+    "statistics.random.piercings_received",
+    "statistics.random.no_damage_direct_hits_received",
+    "statistics.random.shots",
+    "statistics.random.explosion_hits_received",
+    "statistics.random.avg_damage_assisted_track",
+    "nickname",
+    "logout_at",
+]
+
+EXTRA = ["statistics.random"]
+
+TIME_FIELDS = ["last_battle_time", "updated_at", "logout_at"]
+
+
+class Realm(Enum):
+    RU = "https://api.worldoftanks.ru/wot/"
+    EU = "https://api.worldoftanks.eu/wot/"
+    NA = "https://api.worldoftanks.com/wot/"
+    ASIA = "https://api.worldoftanks.asia/wot/"
+
+
+def flatten(d, parent_key="", sep="_"):
+    items = []
+    for k, v in d.items():
+        new_key = parent_key + sep + k if parent_key else k
+        if isinstance(v, MutableMapping):
+            items.extend(flatten(v, new_key, sep=sep).items())
+        else:
+            items.append((new_key, v))
+    return dict(items)
+
+
+def parse(body):
+    raw = json.load(body)
+
+    for account, data in raw["data"].items():
+        for field in TIME_FIELDS:
+            data[field] = datetime.utcfromtimestamp(data[field])
+
+    return {
+        account: {
+            key.replace("statistics.", "").replace("random.", ""): value
+            for key, value in flatten(data, sep=".").items()
+        }
+        for account, data in raw["data"].items()
+    }
+
+
+def account_info(realm: Realm, application_id: str, account_ids: Sequence[str]):
+    data = "&".join(
+        [
+            f"{key}={value}"
+            for key, value in {
+                "application_id": application_id,
+                "account_id": ",".join(account_ids),
+                "fields": ",".join(FIELDS),
+                "extra": ",".join(EXTRA),
+            }.items()
+        ]
+    )
+    with urlopen(
+        url=urljoin(realm.value, "account/info/"),
+        data=data.encode(),
+    ) as f:
+        return parse(f)