"""initial schema

Revision ID: 001
Revises:
Create Date: 2026-03-09
"""
from alembic import op
import sqlalchemy as sa

revision = "001"
down_revision = None
branch_labels = None
depends_on = None


def upgrade() -> None:
    op.create_table(
        "monitored_subreddits",
        sa.Column("id", sa.Integer(), primary_key=True),
        sa.Column("name", sa.String(255), unique=True, nullable=False),
        sa.Column("display_name", sa.String(255), nullable=True),
        sa.Column("description", sa.String(), nullable=True),
        sa.Column("subscribers", sa.Integer(), nullable=True),
        sa.Column("is_active", sa.Boolean(), server_default="true", nullable=False),
        sa.Column("created_at", sa.DateTime(timezone=True), nullable=False),
        sa.Column("updated_at", sa.DateTime(timezone=True), nullable=False),
    )

    op.create_table(
        "authors",
        sa.Column("id", sa.Integer(), primary_key=True),
        sa.Column("username", sa.String(255), unique=True, nullable=False),
        sa.Column("first_seen_at", sa.DateTime(timezone=True), nullable=False),
        sa.Column("last_seen_at", sa.DateTime(timezone=True), nullable=False),
        sa.Column("total_posts", sa.Integer(), server_default="0", nullable=False),
        sa.Column("total_comments", sa.Integer(), server_default="0", nullable=False),
    )

    op.create_table(
        "posts",
        sa.Column("id", sa.Integer(), primary_key=True),
        sa.Column("reddit_id", sa.String(20), unique=True, nullable=False),
        sa.Column(
            "subreddit_id",
            sa.Integer(),
            sa.ForeignKey("monitored_subreddits.id"),
            nullable=False,
            index=True,
        ),
        sa.Column(
            "author_id",
            sa.Integer(),
            sa.ForeignKey("authors.id"),
            nullable=True,
            index=True,
        ),
        sa.Column("title", sa.String(), nullable=False),
        sa.Column("selftext", sa.String(), nullable=True),
        sa.Column("url", sa.String(), nullable=True),
        sa.Column("permalink", sa.String(), nullable=True),
        sa.Column("flair", sa.String(255), nullable=True),
        sa.Column("score", sa.Integer(), server_default="0", nullable=False, index=True),
        sa.Column("upvote_ratio", sa.Float(), nullable=True),
        sa.Column("num_comments", sa.Integer(), server_default="0", nullable=False),
        sa.Column("is_self", sa.Boolean(), nullable=True),
        sa.Column("over_18", sa.Boolean(), server_default="false", nullable=False),
        sa.Column("hot_rank", sa.Integer(), nullable=True),
        sa.Column("created_utc", sa.DateTime(timezone=True), nullable=False),
        sa.Column("collected_at", sa.DateTime(timezone=True), nullable=False),
        sa.Column("updated_at", sa.DateTime(timezone=True), nullable=False),
    )
    op.create_index(
        "ix_posts_subreddit_created", "posts", ["subreddit_id", "created_utc"]
    )

    op.create_table(
        "comments",
        sa.Column("id", sa.Integer(), primary_key=True),
        sa.Column("reddit_id", sa.String(20), unique=True, nullable=False),
        sa.Column(
            "post_id",
            sa.Integer(),
            sa.ForeignKey("posts.id"),
            nullable=False,
            index=True,
        ),
        sa.Column(
            "parent_comment_id",
            sa.Integer(),
            sa.ForeignKey("comments.id"),
            nullable=True,
            index=True,
        ),
        sa.Column(
            "author_id",
            sa.Integer(),
            sa.ForeignKey("authors.id"),
            nullable=True,
            index=True,
        ),
        sa.Column("body", sa.String(), nullable=False),
        sa.Column("score", sa.Integer(), server_default="0", nullable=False),
        sa.Column("created_utc", sa.DateTime(timezone=True), nullable=False),
        sa.Column("collected_at", sa.DateTime(timezone=True), nullable=False),
        sa.Column("updated_at", sa.DateTime(timezone=True), nullable=False),
    )

    op.create_table(
        "metric_snapshots",
        sa.Column("id", sa.Integer(), primary_key=True),
        sa.Column(
            "post_id",
            sa.Integer(),
            sa.ForeignKey("posts.id"),
            nullable=False,
        ),
        sa.Column("score", sa.Integer(), nullable=False),
        sa.Column("num_comments", sa.Integer(), nullable=False),
        sa.Column("upvote_ratio", sa.Float(), nullable=True),
        sa.Column("snapshot_at", sa.DateTime(timezone=True), nullable=False),
    )
    op.create_index(
        "ix_metric_snapshots_post_snapshot",
        "metric_snapshots",
        ["post_id", "snapshot_at"],
    )

    op.create_table(
        "daily_digests",
        sa.Column("id", sa.Integer(), primary_key=True),
        sa.Column(
            "subreddit_id",
            sa.Integer(),
            sa.ForeignKey("monitored_subreddits.id"),
            nullable=False,
        ),
        sa.Column("digest_date", sa.Date(), nullable=False),
        sa.Column("content", sa.String(), nullable=False),
        sa.Column("metadata", sa.JSON(), nullable=True),
        sa.Column("generated_at", sa.DateTime(timezone=True), nullable=False),
    )

    op.create_table(
        "summaries",
        sa.Column("id", sa.Integer(), primary_key=True),
        sa.Column(
            "subreddit_id",
            sa.Integer(),
            sa.ForeignKey("monitored_subreddits.id"),
            nullable=False,
        ),
        sa.Column("summary_type", sa.String(50), nullable=False),
        sa.Column("content", sa.String(), nullable=True),
        sa.Column("metadata", sa.JSON(), nullable=True),
        sa.Column("period_start", sa.DateTime(timezone=True), nullable=True),
        sa.Column("period_end", sa.DateTime(timezone=True), nullable=True),
        sa.Column("provider", sa.String(100), nullable=True),
        sa.Column("generated_at", sa.DateTime(timezone=True), nullable=False),
    )


def downgrade() -> None:
    op.drop_table("summaries")
    op.drop_table("daily_digests")
    op.drop_index("ix_metric_snapshots_post_snapshot", table_name="metric_snapshots")
    op.drop_table("metric_snapshots")
    op.drop_table("comments")
    op.drop_index("ix_posts_subreddit_created", table_name="posts")
    op.drop_table("posts")
    op.drop_table("authors")
    op.drop_table("monitored_subreddits")