-- =====================================================================
-- IDENTITY SCHEMA — Part 4: Gamification (simplified)
-- =====================================================================
-- Quests, gifts, loyalty — leaner than V1 but still functional.
-- =====================================================================

SET search_path TO identity, public;

CREATE TYPE quest_type   AS ENUM ('OneTime','Daily','Weekly','Onboarding','Milestone');
CREATE TYPE prize_type   AS ENUM ('Balance','RenderSeconds','LoyaltyPoints','StorageGB','Plan','Discount');
CREATE TYPE gift_type    AS ENUM ('Bonus','Referral','Compensation','Promotion','Achievement');

-- ---------------------------------------------------------------------
-- quests
-- ---------------------------------------------------------------------
CREATE TABLE quests (
    id                  UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    tenant_id           UUID REFERENCES tenants(id) ON DELETE CASCADE,  -- NULL = global

    title               TEXT NOT NULL,
    challenge           TEXT,
    why                 TEXT,
    hint                TEXT,
    aphorism            TEXT,
    icon                TEXT,

    quest_type          quest_type NOT NULL,
    target_event        TEXT NOT NULL,                  -- 'user.registered','project.created',...
    target_count        INT NOT NULL DEFAULT 1,         -- how many times event must fire
    metadata            JSONB NOT NULL DEFAULT '{}'::jsonb,

    prize_type          prize_type NOT NULL,
    prize_amount        BIGINT NOT NULL,                -- minor units or seconds/points

    level_limit         INT,                            -- minimum loyalty level
    start_url           TEXT,
    post_action_name    TEXT,
    order_value         INT NOT NULL DEFAULT 0,

    starts_at           TIMESTAMPTZ,
    expires_at          TIMESTAMPTZ,
    is_active           BOOLEAN NOT NULL DEFAULT TRUE,

    created_at          TIMESTAMPTZ NOT NULL DEFAULT NOW(),
    updated_at          TIMESTAMPTZ NOT NULL DEFAULT NOW()
);

CREATE INDEX idx_quests_active ON quests(quest_type, is_active);

CREATE TRIGGER tg_quests_updated_at
BEFORE UPDATE ON quests
FOR EACH ROW EXECUTE FUNCTION public.tg_set_updated_at();

-- ---------------------------------------------------------------------
-- user_quest_progress — incremental tracking
-- ---------------------------------------------------------------------
CREATE TABLE user_quest_progress (
    id                  UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    user_id             UUID NOT NULL REFERENCES users(id) ON DELETE CASCADE,
    quest_id            UUID NOT NULL REFERENCES quests(id) ON DELETE CASCADE,

    current_count       INT NOT NULL DEFAULT 0,
    text_value          TEXT,                           -- for input-based quests
    is_completed        BOOLEAN NOT NULL DEFAULT FALSE,
    completed_at        TIMESTAMPTZ,
    prize_claimed       BOOLEAN NOT NULL DEFAULT FALSE,
    prize_claimed_at    TIMESTAMPTZ,

    period_start        DATE,                           -- for Daily/Weekly resets

    created_at          TIMESTAMPTZ NOT NULL DEFAULT NOW(),
    updated_at          TIMESTAMPTZ NOT NULL DEFAULT NOW(),

    UNIQUE (user_id, quest_id, period_start)
);

CREATE INDEX idx_quest_prog_user_open ON user_quest_progress(user_id) WHERE is_completed = FALSE;

CREATE TRIGGER tg_quest_prog_updated_at
BEFORE UPDATE ON user_quest_progress
FOR EACH ROW EXECUTE FUNCTION public.tg_set_updated_at();

-- ---------------------------------------------------------------------
-- gifts — admin-issued bonuses
-- ---------------------------------------------------------------------
CREATE TABLE gifts (
    id                  UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    tenant_id           UUID REFERENCES tenants(id) ON DELETE CASCADE,

    name                TEXT NOT NULL,
    description         TEXT,
    icon                TEXT,
    gift_type           gift_type NOT NULL,
    prize_type          prize_type NOT NULL,
    value               BIGINT NOT NULL,
    unit                TEXT,                           -- 'seconds','IRR','points',...

    assigned_by_user_id UUID REFERENCES users(id) ON DELETE SET NULL,
    is_active           BOOLEAN NOT NULL DEFAULT TRUE,

    created_at          TIMESTAMPTZ NOT NULL DEFAULT NOW()
);

-- ---------------------------------------------------------------------
-- earned_gifts — issued to user (consumed via used_gifts)
-- ---------------------------------------------------------------------
CREATE TABLE earned_gifts (
    id                  UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    user_id             UUID NOT NULL REFERENCES users(id) ON DELETE CASCADE,
    gift_id             UUID NOT NULL REFERENCES gifts(id) ON DELETE RESTRICT,
    notification_id     UUID,                           -- FK added later
    source              TEXT,                           -- 'quest','admin','referral','plan'
    source_ref          UUID,                           -- e.g. quest_id

    earned_at           TIMESTAMPTZ NOT NULL DEFAULT NOW(),
    expires_at          TIMESTAMPTZ,
    is_used             BOOLEAN NOT NULL DEFAULT FALSE,
    used_at             TIMESTAMPTZ,

    created_at          TIMESTAMPTZ NOT NULL DEFAULT NOW()
);

CREATE INDEX idx_earned_gifts_user ON earned_gifts(user_id) WHERE is_used = FALSE;

-- ---------------------------------------------------------------------
-- used_gifts — claim log
-- ---------------------------------------------------------------------
CREATE TABLE used_gifts (
    id                  UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    user_id             UUID NOT NULL REFERENCES users(id) ON DELETE CASCADE,
    earned_gift_id      UUID NOT NULL REFERENCES earned_gifts(id) ON DELETE RESTRICT,
    used_at             TIMESTAMPTZ NOT NULL DEFAULT NOW(),
    created_at          TIMESTAMPTZ NOT NULL DEFAULT NOW()
);

CREATE INDEX idx_used_gifts_user ON used_gifts(user_id, used_at DESC);

-- ---------------------------------------------------------------------
-- avatars — preset avatar library
-- ---------------------------------------------------------------------
CREATE TABLE avatars (
    id                  UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    code                TEXT UNIQUE NOT NULL,
    url                 TEXT NOT NULL,
    description         TEXT,
    sort                INT NOT NULL DEFAULT 0,
    is_active           BOOLEAN NOT NULL DEFAULT TRUE,
    created_at          TIMESTAMPTZ NOT NULL DEFAULT NOW()
);