-- Migration 000010: Extended equipment slots (head, feet, neck).

-- ============================================================
-- Equipment items table (all slots beyond legacy weapon/armor).
-- ============================================================
CREATE TABLE IF NOT EXISTS equipment_items (
    id BIGSERIAL PRIMARY KEY,
    slot TEXT NOT NULL,            -- gear.slot.head, gear.slot.feet, gear.slot.neck, etc.
    form_id TEXT NOT NULL DEFAULT '',
    name TEXT NOT NULL,
    rarity TEXT NOT NULL DEFAULT 'common',
    ilvl INT NOT NULL DEFAULT 1,
    base_primary INT NOT NULL DEFAULT 0,
    primary_stat INT NOT NULL DEFAULT 0,  -- computed: ScalePrimary(base_primary, ilvl, rarity)
    stat_type TEXT NOT NULL DEFAULT 'defense',  -- attack, defense, speed, mixed
    created_at TIMESTAMPTZ NOT NULL DEFAULT now()
);

-- ============================================================
-- Hero equipment (one row per equipped slot).
-- ============================================================
CREATE TABLE IF NOT EXISTS hero_equipment (
    hero_id BIGINT NOT NULL REFERENCES heroes(id) ON DELETE CASCADE,
    slot TEXT NOT NULL,
    item_id BIGINT NOT NULL REFERENCES equipment_items(id),
    equipped_at TIMESTAMPTZ NOT NULL DEFAULT now(),
    PRIMARY KEY (hero_id, slot)
);

CREATE INDEX IF NOT EXISTS idx_hero_equipment_hero ON hero_equipment(hero_id);