"""Initial schema — full application schema, collapsed from the prior 13-migration chain.

Migrations 001-013 are collapsed into this single one now that the chain has
never shipped to a production database (dev-only so far). This file must stay
byte-for-byte equivalent, schema-wise, to `_FULL_SCHEMA` in
`app/db/connection.py` — `tests/integration/test_schema_parity.py` asserts
exactly that by building a database from each and diffing tables, columns,
CHECKs, foreign keys and indexes. The CREATE TABLE / CREATE INDEX statements
below are copied verbatim from `_FULL_SCHEMA` so the two can never drift.

Revision ID: 001
Revises: None
Create Date: 2026-09-18
"""

from __future__ import annotations

from alembic import op

revision: str = "001"
down_revision: str | None = None
branch_labels: str | None = None
depends_on: str | None = None

# Tables in FK-dependency order (workspace first); indexes last. Kept in sync
# with `_FULL_SCHEMA` in `app/db/connection.py` — see module docstring.
_UPGRADE_SQL = """
CREATE TABLE IF NOT EXISTS workspace (
    id TEXT PRIMARY KEY,
    name TEXT NOT NULL,
    created_at TIMESTAMP NOT NULL
);

CREATE TABLE IF NOT EXISTS personal_data (
    uuid TEXT PRIMARY KEY,
    workspace_id TEXT NOT NULL,
    name TEXT NOT NULL,
    salary_type TEXT NOT NULL DEFAULT 'monthly'
        CHECK (salary_type IN ('monthly','hourly')),
    employment_status TEXT NOT NULL DEFAULT 'employed'
        CHECK (employment_status IN ('employed','jobseeking','none')),
    min_vacation_days_per_year INTEGER NOT NULL DEFAULT 20
        CHECK (min_vacation_days_per_year >= 0 AND min_vacation_days_per_year <= 60),
    personnummer_enc TEXT,
    created_at TIMESTAMP NOT NULL,
    deleted_at TIMESTAMP,
    FOREIGN KEY (workspace_id) REFERENCES workspace(id) ON DELETE CASCADE
);

CREATE TABLE IF NOT EXISTS "user" (
    id TEXT PRIMARY KEY,
    personal_data_uuid TEXT NOT NULL UNIQUE,
    email TEXT NOT NULL UNIQUE,
    hashed_password TEXT NOT NULL,
    created_at TIMESTAMP NOT NULL,
    is_active INTEGER NOT NULL DEFAULT 1,
    FOREIGN KEY (personal_data_uuid) REFERENCES personal_data(uuid) ON DELETE CASCADE
);

CREATE TABLE IF NOT EXISTS workspace_invitation (
    id TEXT PRIMARY KEY,
    workspace_id TEXT NOT NULL,
    token_hash TEXT NOT NULL UNIQUE,
    invited_by_user_id TEXT NOT NULL,
    status TEXT NOT NULL CHECK (status IN ('pending','accepted','revoked','expired')),
    expires_at TIMESTAMP NOT NULL,
    created_at TIMESTAMP NOT NULL,
    accepted_at TIMESTAMP,
    FOREIGN KEY (workspace_id) REFERENCES workspace(id) ON DELETE CASCADE,
    FOREIGN KEY (invited_by_user_id) REFERENCES "user"(id) ON DELETE CASCADE
);

CREATE TABLE IF NOT EXISTS child (
    id TEXT PRIMARY KEY,
    workspace_id TEXT NOT NULL,
    name TEXT NOT NULL,
    birth_date DATE NOT NULL,
    preschool_start_date DATE,
    preschool_planning_days_per_year INTEGER NOT NULL DEFAULT 6
        CHECK (preschool_planning_days_per_year >= 0 AND preschool_planning_days_per_year <= 30),
    created_at TIMESTAMP NOT NULL,
    FOREIGN KEY (workspace_id) REFERENCES workspace(id) ON DELETE CASCADE
);

CREATE TABLE IF NOT EXISTS leave_wish (
    id TEXT PRIMARY KEY,
    workspace_id TEXT NOT NULL,
    child_id TEXT,
    name TEXT NOT NULL,
    name_message_key TEXT,
    window_start_month INTEGER NOT NULL DEFAULT 1
        CHECK (window_start_month >= 1 AND window_start_month <= 12),
    window_start_day INTEGER NOT NULL DEFAULT 1
        CHECK (window_start_day >= 1 AND window_start_day <= 31),
    window_end_month INTEGER NOT NULL DEFAULT 1
        CHECK (window_end_month >= 1 AND window_end_month <= 12),
    window_end_day INTEGER NOT NULL DEFAULT 1
        CHECK (window_end_day >= 1 AND window_end_day <= 31),
    target_weeks INTEGER NOT NULL,
    target_days INTEGER,
    recurrence TEXT NOT NULL DEFAULT 'once'
        CHECK (recurrence IN ('yearly','once')),
    first_year INTEGER NOT NULL DEFAULT 2026,
    last_year INTEGER,
    priority INTEGER NOT NULL DEFAULT 1 CHECK (priority >= 1),
    parent_mode TEXT NOT NULL DEFAULT 'either'
        CHECK (parent_mode IN ('either','both','specific')),
    parent_personal_data_uuid TEXT,
    window_mode TEXT NOT NULL DEFAULT 'fixed'
        CHECK (window_mode IN ('fixed','flexible')),
    wants_dubbeldag INTEGER NOT NULL DEFAULT 0,
    created_at TIMESTAMP NOT NULL,
    updated_at TIMESTAMP NOT NULL,
    FOREIGN KEY (workspace_id) REFERENCES workspace(id) ON DELETE CASCADE,
    FOREIGN KEY (child_id) REFERENCES child(id) ON DELETE CASCADE,
    FOREIGN KEY (parent_personal_data_uuid) REFERENCES personal_data(uuid) ON DELETE CASCADE
);

CREATE TABLE IF NOT EXISTS parental_leave_fetch (
    id TEXT PRIMARY KEY,
    personal_data_uuid TEXT NOT NULL,
    workspace_id TEXT NOT NULL,
    child_id TEXT NOT NULL,
    source TEXT NOT NULL CHECK (source IN ('scraped','manual')),
    fetched_at TIMESTAMP NOT NULL,
    total_days INTEGER NOT NULL,
    days_used INTEGER NOT NULL,
    days_left INTEGER NOT NULL,
    reserved_days_total INTEGER NOT NULL DEFAULT 90,
    reserved_days_left INTEGER NOT NULL,
    transferable_days_left INTEGER NOT NULL,
    dubbeldagar_left INTEGER NOT NULL,
    tier_data TEXT NOT NULL,
    created_at TIMESTAMP NOT NULL,
    updated_at TIMESTAMP NOT NULL,
    FOREIGN KEY (personal_data_uuid) REFERENCES personal_data(uuid) ON DELETE CASCADE,
    FOREIGN KEY (workspace_id) REFERENCES workspace(id) ON DELETE CASCADE,
    FOREIGN KEY (child_id) REFERENCES child(id) ON DELETE CASCADE
);

CREATE TABLE IF NOT EXISTS vacation_days (
    id TEXT PRIMARY KEY,
    personal_data_uuid TEXT NOT NULL,
    workspace_id TEXT NOT NULL,
    year INTEGER NOT NULL,
    total_days INTEGER NOT NULL,
    saved_days_in INTEGER NOT NULL DEFAULT 0,
    created_at TIMESTAMP NOT NULL,
    updated_at TIMESTAMP NOT NULL,
    UNIQUE(personal_data_uuid, year),
    FOREIGN KEY (personal_data_uuid) REFERENCES personal_data(uuid) ON DELETE CASCADE,
    FOREIGN KEY (workspace_id) REFERENCES workspace(id) ON DELETE CASCADE
);

CREATE TABLE IF NOT EXISTS planned_leave_day (
    id TEXT PRIMARY KEY,
    workspace_id TEXT NOT NULL,
    child_id TEXT NOT NULL,
    parent_personal_data_uuid TEXT NOT NULL,
    date DATE NOT NULL,
    day_type TEXT NOT NULL CHECK (day_type IN ('sjukpenning','lagsta','vacation')),
    is_dubbeldag INTEGER NOT NULL DEFAULT 0,
    wish_id TEXT,
    is_pinned INTEGER NOT NULL DEFAULT 0,
    created_at TIMESTAMP NOT NULL,
    updated_at TIMESTAMP NOT NULL,
    UNIQUE(workspace_id, child_id, date, parent_personal_data_uuid),
    FOREIGN KEY (workspace_id) REFERENCES workspace(id) ON DELETE CASCADE,
    FOREIGN KEY (child_id) REFERENCES child(id) ON DELETE CASCADE,
    FOREIGN KEY (parent_personal_data_uuid) REFERENCES personal_data(uuid) ON DELETE CASCADE,
    FOREIGN KEY (wish_id) REFERENCES leave_wish(id) ON DELETE SET NULL
);

CREATE TABLE IF NOT EXISTS day_override (
    id TEXT PRIMARY KEY,
    workspace_id TEXT NOT NULL,
    date DATE NOT NULL,
    is_working_day INTEGER NOT NULL,
    note TEXT,
    created_at TIMESTAMP NOT NULL,
    updated_at TIMESTAMP NOT NULL,
    UNIQUE(workspace_id, date),
    FOREIGN KEY (workspace_id) REFERENCES workspace(id) ON DELETE CASCADE
);

CREATE TABLE IF NOT EXISTS tip_dismissal (
    id TEXT PRIMARY KEY,
    workspace_id TEXT NOT NULL,
    tip_id TEXT NOT NULL,
    data_hash TEXT NOT NULL,
    dismissed_at TIMESTAMP NOT NULL,
    UNIQUE(workspace_id, tip_id),
    FOREIGN KEY (workspace_id) REFERENCES workspace(id) ON DELETE CASCADE
);

CREATE INDEX IF NOT EXISTS idx_pld_parent_child_type_date
    ON planned_leave_day (parent_personal_data_uuid, child_id, day_type, date);
CREATE INDEX IF NOT EXISTS idx_pld_child_dubbeldag_date
    ON planned_leave_day (child_id, is_dubbeldag, date);
CREATE INDEX IF NOT EXISTS idx_pld_wish
    ON planned_leave_day (wish_id);
CREATE INDEX IF NOT EXISTS idx_plf_parent_child_fetched
    ON parental_leave_fetch (personal_data_uuid, child_id, fetched_at);
CREATE INDEX IF NOT EXISTS idx_plf_workspace
    ON parental_leave_fetch (workspace_id);
CREATE INDEX IF NOT EXISTS idx_plf_child
    ON parental_leave_fetch (child_id);
CREATE INDEX IF NOT EXISTS idx_leave_wish_workspace
    ON leave_wish (workspace_id);
CREATE INDEX IF NOT EXISTS idx_leave_wish_child
    ON leave_wish (child_id);
CREATE INDEX IF NOT EXISTS idx_leave_wish_parent
    ON leave_wish (parent_personal_data_uuid);
CREATE INDEX IF NOT EXISTS idx_child_workspace_birth
    ON child (workspace_id, birth_date);
CREATE INDEX IF NOT EXISTS idx_personal_data_workspace_deleted
    ON personal_data (workspace_id, deleted_at);
CREATE INDEX IF NOT EXISTS idx_invitation_workspace_status_created
    ON workspace_invitation (workspace_id, status, created_at);
CREATE INDEX IF NOT EXISTS idx_invitation_invited_by
    ON workspace_invitation (invited_by_user_id);
CREATE INDEX IF NOT EXISTS idx_vacation_days_workspace
    ON vacation_days (workspace_id);
"""

# Reverse FK-dependency order: drop dependents before their targets. Dropping
# a table also drops its own indexes, so no separate DROP INDEX statements
# are needed.
_DOWNGRADE_SQL = """
DROP TABLE IF EXISTS tip_dismissal;
DROP TABLE IF EXISTS day_override;
DROP TABLE IF EXISTS planned_leave_day;
DROP TABLE IF EXISTS vacation_days;
DROP TABLE IF EXISTS parental_leave_fetch;
DROP TABLE IF EXISTS leave_wish;
DROP TABLE IF EXISTS child;
DROP TABLE IF EXISTS workspace_invitation;
DROP TABLE IF EXISTS "user";
DROP TABLE IF EXISTS personal_data;
DROP TABLE IF EXISTS workspace;
"""


def upgrade() -> None:
    from sqlalchemy import text

    for stmt in [s.strip() for s in _UPGRADE_SQL.split(";") if s.strip()]:
        op.execute(text(stmt))


def downgrade() -> None:
    from sqlalchemy import text

    for stmt in [s.strip() for s in _DOWNGRADE_SQL.split(";") if s.strip()]:
        op.execute(text(stmt))