apiVersion: v1
kind: ConfigMap
metadata:
  name: {{ include "invy.fullname" . }}-db-schema
  labels:
    {{- include "invy.labels" . | nindent 4 }}
    app.kubernetes.io/component: database
data:
  init.sql: |
    -- Invy — Full Database Init Schema
    -- Runs only on a FRESH (empty) data directory.
    -- For existing production DBs run migrate_production.sql manually.

    CREATE EXTENSION IF NOT EXISTS "uuid-ossp";

    -- ── Users ──────────────────────────────────────────────────────────────
    CREATE TABLE IF NOT EXISTS users (
        id         UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
        email      TEXT NOT NULL UNIQUE,
        created_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP
    );
    CREATE INDEX IF NOT EXISTS idx_users_email ON users(email);

    -- ── Events ─────────────────────────────────────────────────────────────
    CREATE TABLE IF NOT EXISTS events (
        id              UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
        name            TEXT NOT NULL,
        date            TIMESTAMP WITH TIME ZONE,
        location        TEXT,
        partner1_name   TEXT,
        partner2_name   TEXT,
        venue           TEXT,
        event_time      TEXT,
        guest_link      TEXT,
        created_at      TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP,
        updated_at      TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP
    );
    CREATE INDEX IF NOT EXISTS idx_events_created_at ON events(created_at);
    CREATE INDEX IF NOT EXISTS idx_events_guest_link  ON events(guest_link);

    -- ── Event members (authorization) ──────────────────────────────────────
    CREATE TABLE IF NOT EXISTS event_members (
        id           UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
        event_id     UUID NOT NULL REFERENCES events(id) ON DELETE CASCADE,
        user_id      UUID NOT NULL REFERENCES users(id)  ON DELETE CASCADE,
        role         TEXT NOT NULL DEFAULT 'admin'
                         CHECK (role IN ('admin', 'editor', 'viewer')),
        display_name TEXT,
        created_at   TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP,
        UNIQUE(event_id, user_id)
    );
    CREATE INDEX IF NOT EXISTS idx_event_members_event_id   ON event_members(event_id);
    CREATE INDEX IF NOT EXISTS idx_event_members_user_id    ON event_members(user_id);
    CREATE INDEX IF NOT EXISTS idx_event_members_event_user ON event_members(event_id, user_id);

    -- ── Guests v2 ──────────────────────────────────────────────────────────
    CREATE TABLE IF NOT EXISTS guests_v2 (
        id               UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
        event_id         UUID NOT NULL REFERENCES events(id) ON DELETE CASCADE,
        added_by_user_id UUID NOT NULL REFERENCES users(id),

        first_name       TEXT NOT NULL,
        last_name        TEXT NOT NULL DEFAULT '',
        email            TEXT,
        phone            TEXT,
        phone_number     TEXT,

        rsvp_status      TEXT NOT NULL DEFAULT 'invited'
                             CHECK (rsvp_status IN ('invited', 'confirmed', 'declined')),
        meal_preference  TEXT,

        has_plus_one     BOOLEAN DEFAULT FALSE,
        plus_one_name    TEXT,

        table_number     TEXT,
        side             TEXT,

        owner_email      TEXT,
        source           TEXT NOT NULL DEFAULT 'manual'
                             CHECK (source IN ('google', 'manual', 'self-service')),

        notes            TEXT,
        created_at       TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP,
        updated_at       TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP
    );
    CREATE INDEX IF NOT EXISTS idx_guests_v2_event_id     ON guests_v2(event_id);
    CREATE INDEX IF NOT EXISTS idx_guests_v2_added_by     ON guests_v2(added_by_user_id);
    CREATE INDEX IF NOT EXISTS idx_guests_v2_phone_number ON guests_v2(phone_number);
    CREATE INDEX IF NOT EXISTS idx_guests_v2_event_phone  ON guests_v2(event_id, phone_number);
    CREATE INDEX IF NOT EXISTS idx_guests_v2_event_status ON guests_v2(event_id, rsvp_status);
    CREATE INDEX IF NOT EXISTS idx_guests_v2_owner_email  ON guests_v2(event_id, owner_email);
    CREATE INDEX IF NOT EXISTS idx_guests_v2_source       ON guests_v2(event_id, source);

    -- ── RSVP tokens ────────────────────────────────────────────────────────
    CREATE TABLE IF NOT EXISTS rsvp_tokens (
        token      TEXT PRIMARY KEY,
        event_id   UUID NOT NULL REFERENCES events(id)      ON DELETE CASCADE,
        guest_id   UUID           REFERENCES guests_v2(id)  ON DELETE SET NULL,
        phone      TEXT,
        created_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP,
        expires_at TIMESTAMP WITH TIME ZONE,
        used_at    TIMESTAMP WITH TIME ZONE
    );
    CREATE INDEX IF NOT EXISTS idx_rsvp_tokens_event_id ON rsvp_tokens(event_id);
    CREATE INDEX IF NOT EXISTS idx_rsvp_tokens_guest_id ON rsvp_tokens(guest_id);

    -- ── updated_at trigger ─────────────────────────────────────────────────
    CREATE OR REPLACE FUNCTION _update_updated_at()
    RETURNS TRIGGER LANGUAGE plpgsql AS $$
    BEGIN
        NEW.updated_at = CURRENT_TIMESTAMP;
        RETURN NEW;
    END;
    $$;

    DO $$ BEGIN
        CREATE TRIGGER trg_guests_v2_updated_at
            BEFORE UPDATE ON guests_v2
            FOR EACH ROW EXECUTE FUNCTION _update_updated_at();
    EXCEPTION WHEN duplicate_object THEN NULL; END $$;

    DO $$ BEGIN
        CREATE TRIGGER trg_events_updated_at
            BEFORE UPDATE ON events
            FOR EACH ROW EXECUTE FUNCTION _update_updated_at();
    EXCEPTION WHEN duplicate_object THEN NULL; END $$;