-- Seçimler
CREATE TYPE election_type AS ENUM (
    'genel', 'yerel', 'cumhurbaskanligi', 'referandum'
);

CREATE TABLE elections (
    id      BIGSERIAL PRIMARY KEY,
    name    TEXT NOT NULL,
    held_at DATE NOT NULL,
    type    election_type NOT NULL
);

-- Görevdeki yetkililer
CREATE TABLE officials (
    id          BIGSERIAL PRIMARY KEY,
    person_id   BIGINT NOT NULL REFERENCES persons(id) ON DELETE RESTRICT,
    unit_id     BIGINT NOT NULL REFERENCES administrative_units(id),
    title       TEXT NOT NULL,
    started_at  DATE NOT NULL,
    ended_at    DATE,
    election_id BIGINT REFERENCES elections(id) ON DELETE SET NULL
);

CREATE INDEX idx_officials_person ON officials(person_id);
CREATE INDEX idx_officials_unit   ON officials(unit_id);

-- Yetkili karnesi (periyodik hesaplanan)
CREATE TABLE official_stats (
    id             BIGSERIAL PRIMARY KEY,
    official_id    BIGINT NOT NULL REFERENCES officials(id) ON DELETE CASCADE,
    period_start   DATE NOT NULL,
    period_end     DATE,
    open_at_start  INT NOT NULL DEFAULT 0,
    new_during     INT NOT NULL DEFAULT 0,
    resolved       INT NOT NULL DEFAULT 0,
    rejected       INT NOT NULL DEFAULT 0,
    score          NUMERIC(5, 2),
    computed_at    TIMESTAMPTZ NOT NULL DEFAULT NOW(),
    UNIQUE (official_id, period_start)
);

CREATE INDEX idx_official_stats_official ON official_stats(official_id);

-- Sorumluluk kural tablosu (AI + moderatör için)
CREATE TABLE issue_category_unit_rules (
    id            BIGSERIAL PRIMARY KEY,
    category_id   BIGINT NOT NULL REFERENCES issue_categories(id) ON DELETE CASCADE,
    unit_type_id  BIGINT NOT NULL REFERENCES administrative_unit_types(id) ON DELETE CASCADE,
    location_type location_type NOT NULL,
    confidence    SMALLINT NOT NULL DEFAULT 80 CHECK (confidence BETWEEN 0 AND 100),
    legal_basis   TEXT,
    notes         TEXT,
    UNIQUE (category_id, unit_type_id, location_type)
);

-- Mevzuat (RAG için)
CREATE TABLE legislation (
    id             BIGSERIAL PRIMARY KEY,
    title          TEXT NOT NULL,
    number         TEXT,
    published_at   DATE,
    body           TEXT NOT NULL,
    embedding_done BOOLEAN NOT NULL DEFAULT FALSE,
    created_at     TIMESTAMPTZ NOT NULL DEFAULT NOW()
);

-- Rapor türleri
CREATE TABLE report_types (
    id          BIGSERIAL PRIMARY KEY,
    name        TEXT NOT NULL,
    slug        TEXT NOT NULL UNIQUE,
    description TEXT,
    is_active   BOOLEAN NOT NULL DEFAULT TRUE
);

-- Rapor türü ↔ veri kaynağı
CREATE TABLE report_data_sources (
    id          BIGSERIAL PRIMARY KEY,
    name        TEXT NOT NULL UNIQUE,   -- "issue", "vote", "official_stat"
    unit_price  NUMERIC(10, 6) NOT NULL,
    description TEXT
);

CREATE TABLE report_type_sources (
    report_type_id BIGINT NOT NULL REFERENCES report_types(id) ON DELETE CASCADE,
    data_source_id BIGINT NOT NULL REFERENCES report_data_sources(id) ON DELETE CASCADE,
    is_required    BOOLEAN NOT NULL DEFAULT TRUE,
    PRIMARY KEY (report_type_id, data_source_id)
);

-- Rapor siparişleri
CREATE TYPE report_order_status AS ENUM (
    'draft', 'pending_payment', 'processing', 'ready', 'failed', 'expired'
);

CREATE TABLE report_orders (
    id               BIGSERIAL PRIMARY KEY,
    user_id          BIGINT NOT NULL REFERENCES users(id),
    report_type_id   BIGINT NOT NULL REFERENCES report_types(id),
    parameters       JSONB NOT NULL DEFAULT '{}',
    row_counts       JSONB NOT NULL DEFAULT '{}',
    calculated_price NUMERIC(10, 2) NOT NULL DEFAULT 0,
    status           report_order_status NOT NULL DEFAULT 'draft',
    paid_at          TIMESTAMPTZ,
    created_at       TIMESTAMPTZ NOT NULL DEFAULT NOW()
);

CREATE INDEX idx_report_orders_user   ON report_orders(user_id);
CREATE INDEX idx_report_orders_status ON report_orders(status);

-- Üretilen rapor dosyaları
CREATE TABLE report_outputs (
    id             BIGSERIAL PRIMARY KEY,
    order_id       BIGINT NOT NULL UNIQUE REFERENCES report_orders(id) ON DELETE CASCADE,
    file_path      TEXT NOT NULL,
    file_size      BIGINT NOT NULL DEFAULT 0,
    expires_at     TIMESTAMPTZ NOT NULL,
    download_count SMALLINT NOT NULL DEFAULT 0,
    created_at     TIMESTAMPTZ NOT NULL DEFAULT NOW()
);

-- Ödemeler
CREATE TYPE payment_status AS ENUM ('pending', 'success', 'failed', 'refunded');

CREATE TABLE payments (
    id           BIGSERIAL PRIMARY KEY,
    order_id     BIGINT NOT NULL REFERENCES report_orders(id),
    user_id      BIGINT NOT NULL REFERENCES users(id),
    amount       NUMERIC(10, 2) NOT NULL,
    provider     TEXT NOT NULL,
    provider_ref TEXT,
    status       payment_status NOT NULL DEFAULT 'pending',
    created_at   TIMESTAMPTZ NOT NULL DEFAULT NOW()
);

CREATE INDEX idx_payments_order ON payments(order_id);
CREATE INDEX idx_payments_user  ON payments(user_id);