-- +goose Up
CREATE TABLE erp_sync_runs (
    id TEXT PRIMARY KEY NOT NULL CHECK (length(id) = 36),
    creator_subject TEXT NOT NULL,
    created_by_user_id TEXT NOT NULL
        REFERENCES users(id) ON UPDATE RESTRICT ON DELETE RESTRICT,
    mode TEXT NOT NULL CHECK (mode = 'ORDER_NUMBER'),
    order_number TEXT NOT NULL
        CHECK (
            length(trim(order_number)) > 0
            AND length(CAST(order_number AS BLOB)) <= 128
        ),
    query_sha256 TEXT NOT NULL
        CHECK (
            length(query_sha256) = 64
            AND query_sha256 NOT GLOB '*[^0-9a-f]*'
        ),
    idempotency_key TEXT NOT NULL
        CHECK (
            length(trim(idempotency_key)) > 0
            AND length(CAST(idempotency_key AS BLOB)) <= 128
        ),
    request_sha256 TEXT NOT NULL
        CHECK (
            length(request_sha256) = 64
            AND request_sha256 NOT GLOB '*[^0-9a-f]*'
        ),
    status TEXT NOT NULL
        CHECK (status IN ('PENDING', 'RUNNING', 'SUCCEEDED', 'FAILED')),
    error_code TEXT
        CHECK (
            error_code IS NULL
            OR length(CAST(error_code AS BLOB)) <= 64
        ),
    order_count INTEGER NOT NULL DEFAULT 0 CHECK (order_count >= 0),
    item_count INTEGER NOT NULL DEFAULT 0 CHECK (item_count >= 0),
    created_at TEXT NOT NULL,
    started_at TEXT,
    finished_at TEXT,
    CHECK (
        (status = 'PENDING'
            AND started_at IS NULL
            AND finished_at IS NULL
            AND error_code IS NULL)
        OR (status = 'RUNNING'
            AND started_at IS NOT NULL
            AND finished_at IS NULL
            AND error_code IS NULL)
        OR (status = 'SUCCEEDED'
            AND started_at IS NOT NULL
            AND finished_at IS NOT NULL
            AND error_code IS NULL)
        OR (status = 'FAILED'
            AND finished_at IS NOT NULL
            AND error_code IS NOT NULL)
    ),
    UNIQUE (creator_subject, idempotency_key)
);

CREATE INDEX erp_sync_runs_creator_created_idx
    ON erp_sync_runs (creator_subject, created_at DESC, id DESC);

CREATE TABLE freight_orders (
    id TEXT PRIMARY KEY NOT NULL CHECK (length(id) = 36),
    creator_subject TEXT NOT NULL,
    source_system TEXT NOT NULL CHECK (source_system = 'SHUNYUNBAO'),
    external_stock_id TEXT NOT NULL
        CHECK (length(trim(external_stock_id)) > 0),
    source_code TEXT NOT NULL
        CHECK (length(CAST(source_code AS BLOB)) <= 256),
    platform_order_no TEXT
        CHECK (
            platform_order_no IS NULL
            OR length(CAST(platform_order_no AS BLOB)) <= 256
        ),
    shop_name TEXT
        CHECK (
            shop_name IS NULL
            OR length(CAST(shop_name AS BLOB)) <= 512
        ),
    source_created_at TEXT,
    order_status TEXT
        CHECK (
            order_status IS NULL
            OR length(CAST(order_status AS BLOB)) <= 128
        ),
    purchase_status TEXT
        CHECK (
            purchase_status IS NULL
            OR length(CAST(purchase_status AS BLOB)) <= 128
        ),
    is_canceled INTEGER CHECK (is_canceled IS NULL OR is_canceled IN (0, 1)),
    canonical_sha256 TEXT NOT NULL
        CHECK (
            length(canonical_sha256) = 64
            AND canonical_sha256 NOT GLOB '*[^0-9a-f]*'
        ),
    revision INTEGER NOT NULL CHECK (revision >= 1),
    first_sync_run_id TEXT NOT NULL
        REFERENCES erp_sync_runs(id) ON UPDATE RESTRICT ON DELETE RESTRICT,
    last_sync_run_id TEXT NOT NULL
        REFERENCES erp_sync_runs(id) ON UPDATE RESTRICT ON DELETE RESTRICT,
    created_at TEXT NOT NULL,
    updated_at TEXT NOT NULL,
    UNIQUE (creator_subject, source_system, external_stock_id)
);

CREATE INDEX freight_orders_creator_updated_idx
    ON freight_orders (creator_subject, updated_at DESC, id DESC);

CREATE TABLE freight_order_items (
    id TEXT PRIMARY KEY NOT NULL CHECK (length(id) = 36),
    freight_order_id TEXT NOT NULL
        REFERENCES freight_orders(id) ON UPDATE RESTRICT ON DELETE RESTRICT,
    external_item_id TEXT NOT NULL
        CHECK (length(trim(external_item_id)) > 0),
    title TEXT NOT NULL
        CHECK (length(CAST(title AS BLOB)) <= 2048),
    product_spec TEXT NOT NULL
        CHECK (length(CAST(product_spec AS BLOB)) <= 1024),
    sku TEXT NOT NULL
        CHECK (length(CAST(sku AS BLOB)) <= 512),
    quantity INTEGER CHECK (quantity IS NULL OR quantity > 0),
    product_thumb_ref TEXT
        CHECK (
            product_thumb_ref IS NULL
            OR length(CAST(product_thumb_ref AS BLOB)) <= 512
        ),
    purchase_status TEXT
        CHECK (
            purchase_status IS NULL
            OR length(CAST(purchase_status AS BLOB)) <= 128
        ),
    canonical_sha256 TEXT NOT NULL
        CHECK (
            length(canonical_sha256) = 64
            AND canonical_sha256 NOT GLOB '*[^0-9a-f]*'
        ),
    revision INTEGER NOT NULL CHECK (revision >= 1),
    is_present INTEGER NOT NULL CHECK (is_present IN (0, 1)),
    first_sync_run_id TEXT NOT NULL
        REFERENCES erp_sync_runs(id) ON UPDATE RESTRICT ON DELETE RESTRICT,
    last_sync_run_id TEXT NOT NULL
        REFERENCES erp_sync_runs(id) ON UPDATE RESTRICT ON DELETE RESTRICT,
    created_at TEXT NOT NULL,
    updated_at TEXT NOT NULL,
    UNIQUE (freight_order_id, external_item_id)
);

CREATE INDEX freight_order_items_order_present_idx
    ON freight_order_items (freight_order_id, is_present, id);

-- +goose Down
CREATE TEMP TABLE freight_v12_down_guard (
    allowed INTEGER NOT NULL CHECK (allowed = 1)
);

INSERT INTO freight_v12_down_guard (allowed)
SELECT CASE
    WHEN EXISTS (SELECT 1 FROM erp_sync_runs)
      OR EXISTS (SELECT 1 FROM freight_orders)
      OR EXISTS (SELECT 1 FROM freight_order_items)
    THEN 0
    ELSE 1
END;

DROP TABLE freight_v12_down_guard;
DROP TABLE freight_order_items;
DROP TABLE freight_orders;
DROP TABLE erp_sync_runs;