SET XACT_ABORT ON;
BEGIN TRANSACTION;

IF OBJECT_ID('dbo.wcs_warehouse', 'U') IS NULL
BEGIN
    CREATE TABLE dbo.wcs_warehouse (
        warehouse_code varchar(64) NOT NULL PRIMARY KEY,
        warehouse_name nvarchar(128) NOT NULL,
        active_configuration_version bigint NULL,
        state_version bigint NOT NULL CONSTRAINT df_wcs_warehouse_state_version DEFAULT (0)
    );
END;

IF OBJECT_ID('dbo.wcs_floor', 'U') IS NULL
BEGIN
    CREATE TABLE dbo.wcs_floor (
        floor_id varchar(64) NOT NULL PRIMARY KEY,
        warehouse_code varchar(64) NOT NULL,
        floor_code varchar(64) NOT NULL,
        floor_level int NOT NULL,
        CONSTRAINT fk_wcs_floor_warehouse FOREIGN KEY (warehouse_code)
            REFERENCES dbo.wcs_warehouse(warehouse_code),
        CONSTRAINT uk_wcs_floor_code UNIQUE (warehouse_code, floor_code),
        CONSTRAINT uk_wcs_floor_level UNIQUE (warehouse_code, floor_level)
    );
END;

IF OBJECT_ID('dbo.wcs_topology_version', 'U') IS NULL
BEGIN
    CREATE TABLE dbo.wcs_topology_version (
        warehouse_code varchar(64) NOT NULL,
        topology_version bigint NOT NULL,
        publication_state varchar(32) NOT NULL,
        published_time datetime2(3) NULL,
        snapshot_version bigint NOT NULL
            CONSTRAINT df_wcs_topology_snapshot_version DEFAULT (0),
        CONSTRAINT pk_wcs_topology_version PRIMARY KEY (
            warehouse_code, topology_version),
        CONSTRAINT fk_wcs_topology_version_warehouse FOREIGN KEY (warehouse_code)
            REFERENCES dbo.wcs_warehouse(warehouse_code)
    );
END;

IF OBJECT_ID('dbo.wcs_topology_node', 'U') IS NULL
BEGIN
    CREATE TABLE dbo.wcs_topology_node (
        warehouse_code varchar(64) NOT NULL,
        topology_version bigint NOT NULL,
        node_id varchar(128) NOT NULL,
        floor_id varchar(64) NOT NULL,
        coordinate_x int NOT NULL,
        coordinate_y int NOT NULL,
        capacity int NOT NULL,
        safe_wait_flag bit NOT NULL CONSTRAINT df_wcs_node_safe_wait DEFAULT (0),
        safe_yield_flag bit NOT NULL CONSTRAINT df_wcs_node_safe_yield DEFAULT (0),
        CONSTRAINT pk_wcs_topology_node PRIMARY KEY (
            warehouse_code, topology_version, node_id),
        CONSTRAINT fk_wcs_topology_node_version FOREIGN KEY (
            warehouse_code, topology_version)
            REFERENCES dbo.wcs_topology_version(warehouse_code, topology_version),
        CONSTRAINT fk_wcs_topology_node_floor FOREIGN KEY (floor_id)
            REFERENCES dbo.wcs_floor(floor_id),
        CONSTRAINT ck_wcs_topology_node_capacity CHECK (capacity > 0),
        CONSTRAINT uk_wcs_topology_node_coordinate UNIQUE (
            warehouse_code, topology_version, floor_id, coordinate_x, coordinate_y)
    );
END;

IF OBJECT_ID('dbo.wcs_topology_edge', 'U') IS NULL
BEGIN
    CREATE TABLE dbo.wcs_topology_edge (
        warehouse_code varchar(64) NOT NULL,
        topology_version bigint NOT NULL,
        resource_key varchar(320) NOT NULL,
        source_node_id varchar(128) NOT NULL,
        target_node_id varchar(128) NOT NULL,
        distance_cost int NOT NULL,
        capacity int NOT NULL,
        CONSTRAINT pk_wcs_topology_edge PRIMARY KEY (
            warehouse_code, topology_version, resource_key),
        CONSTRAINT fk_wcs_topology_edge_version FOREIGN KEY (
            warehouse_code, topology_version)
            REFERENCES dbo.wcs_topology_version(warehouse_code, topology_version),
        CONSTRAINT ck_wcs_topology_edge_distance CHECK (distance_cost >= 0),
        CONSTRAINT ck_wcs_topology_edge_capacity CHECK (capacity > 0),
        CONSTRAINT ck_wcs_topology_edge_direction CHECK (
            source_node_id <> target_node_id)
    );
END;

IF OBJECT_ID('dbo.wcs_traffic_zone', 'U') IS NULL
BEGIN
    CREATE TABLE dbo.wcs_traffic_zone (
        warehouse_code varchar(64) NOT NULL,
        topology_version bigint NOT NULL,
        zone_id varchar(128) NOT NULL,
        zone_name nvarchar(128) NOT NULL,
        coordination_mode varchar(32) NOT NULL,
        CONSTRAINT pk_wcs_traffic_zone PRIMARY KEY (
            warehouse_code, topology_version, zone_id),
        CONSTRAINT fk_wcs_traffic_zone_version FOREIGN KEY (
            warehouse_code, topology_version)
            REFERENCES dbo.wcs_topology_version(warehouse_code, topology_version)
    );
END;

IF OBJECT_ID('dbo.wcs_resource_definition', 'U') IS NULL
BEGIN
    CREATE TABLE dbo.wcs_resource_definition (
        resource_key varchar(320) NOT NULL,
        warehouse_code varchar(64) NOT NULL,
        topology_version bigint NOT NULL,
        resource_type varchar(32) NOT NULL,
        capacity int NOT NULL,
        zone_id varchar(128) NULL,
        CONSTRAINT pk_wcs_resource_definition PRIMARY KEY (
            warehouse_code, topology_version, resource_key),
        CONSTRAINT fk_wcs_resource_definition_version FOREIGN KEY (
            warehouse_code, topology_version)
            REFERENCES dbo.wcs_topology_version(warehouse_code, topology_version),
        CONSTRAINT ck_wcs_resource_definition_capacity CHECK (capacity > 0)
    );
END;

IF OBJECT_ID('dbo.wcs_device', 'U') IS NULL
BEGIN
    CREATE TABLE dbo.wcs_device (
        warehouse_code varchar(64) NOT NULL,
        topology_version bigint NOT NULL,
        device_id varchar(64) NOT NULL,
        device_type varchar(32) NOT NULL,
        floor_id varchar(64) NULL,
        enabled_flag bit NOT NULL CONSTRAINT df_wcs_device_enabled DEFAULT (1),
        CONSTRAINT pk_wcs_device PRIMARY KEY (
            warehouse_code, topology_version, device_id),
        CONSTRAINT fk_wcs_device_version FOREIGN KEY (
            warehouse_code, topology_version)
            REFERENCES dbo.wcs_topology_version(warehouse_code, topology_version),
        CONSTRAINT fk_wcs_device_floor FOREIGN KEY (floor_id)
            REFERENCES dbo.wcs_floor(floor_id)
    );
END;

IF OBJECT_ID('dbo.wcs_device_capability', 'U') IS NULL
BEGIN
    CREATE TABLE dbo.wcs_device_capability (
        warehouse_code varchar(64) NOT NULL,
        topology_version bigint NOT NULL,
        device_id varchar(64) NOT NULL,
        capability_code varchar(64) NOT NULL,
        CONSTRAINT pk_wcs_device_capability PRIMARY KEY (
            warehouse_code, topology_version, device_id, capability_code),
        CONSTRAINT fk_wcs_device_capability_device FOREIGN KEY (
            warehouse_code, topology_version, device_id)
            REFERENCES dbo.wcs_device(warehouse_code, topology_version, device_id)
    );
END;

IF OBJECT_ID('dbo.wcs_device_port', 'U') IS NULL
BEGIN
    CREATE TABLE dbo.wcs_device_port (
        warehouse_code varchar(64) NOT NULL,
        topology_version bigint NOT NULL,
        port_id varchar(64) NOT NULL,
        device_id varchar(64) NOT NULL,
        node_id varchar(128) NOT NULL,
        port_role varchar(32) NOT NULL,
        CONSTRAINT pk_wcs_device_port PRIMARY KEY (
            warehouse_code, topology_version, port_id),
        CONSTRAINT fk_wcs_device_port_device FOREIGN KEY (
            warehouse_code, topology_version, device_id)
            REFERENCES dbo.wcs_device(warehouse_code, topology_version, device_id)
    );
END;

IF OBJECT_ID('dbo.wcs_charger', 'U') IS NULL
BEGIN
    CREATE TABLE dbo.wcs_charger (
        warehouse_code varchar(64) NOT NULL,
        topology_version bigint NOT NULL,
        charger_id varchar(64) NOT NULL,
        node_id varchar(128) NOT NULL,
        enabled_flag bit NOT NULL CONSTRAINT df_wcs_charger_enabled DEFAULT (1),
        CONSTRAINT pk_wcs_charger PRIMARY KEY (
            warehouse_code, topology_version, charger_id),
        CONSTRAINT fk_wcs_charger_version FOREIGN KEY (
            warehouse_code, topology_version)
            REFERENCES dbo.wcs_topology_version(warehouse_code, topology_version)
    );
END;

IF OBJECT_ID('dbo.wcs_vehicle_assignment', 'U') IS NULL
BEGIN
    CREATE TABLE dbo.wcs_vehicle_assignment (
        assignment_id varchar(128) NOT NULL PRIMARY KEY,
        warehouse_code varchar(64) NOT NULL,
        topology_version bigint NOT NULL,
        snapshot_version bigint NOT NULL,
        order_id varchar(64) NOT NULL,
        step_id varchar(128) NOT NULL,
        vehicle_id varchar(64) NOT NULL,
        fencing_token bigint NOT NULL,
        assignment_state varchar(32) NOT NULL,
        created_time datetime2(3) NOT NULL,
        CONSTRAINT uk_wcs_vehicle_assignment_step UNIQUE (step_id),
        CONSTRAINT ck_wcs_vehicle_assignment_fencing CHECK (fencing_token > 0)
    );
END;

IF OBJECT_ID('dbo.wcs_route_plan', 'U') IS NULL
BEGIN
    CREATE TABLE dbo.wcs_route_plan (
        route_plan_id varchar(128) NOT NULL PRIMARY KEY,
        assignment_id varchar(128) NOT NULL,
        warehouse_code varchar(64) NOT NULL,
        topology_version bigint NOT NULL,
        node_path_json nvarchar(max) NOT NULL,
        resource_path_json nvarchar(max) NOT NULL,
        distance_cost int NOT NULL,
        turn_count int NOT NULL,
        route_state varchar(32) NOT NULL,
        created_time datetime2(3) NOT NULL,
        CONSTRAINT fk_wcs_route_plan_assignment FOREIGN KEY (assignment_id)
            REFERENCES dbo.wcs_vehicle_assignment(assignment_id),
        CONSTRAINT uk_wcs_route_plan_assignment UNIQUE (assignment_id),
        CONSTRAINT ck_wcs_route_plan_distance CHECK (distance_cost >= 0),
        CONSTRAINT ck_wcs_route_plan_turns CHECK (turn_count >= 0)
    );
END;

IF OBJECT_ID('dbo.wcs_resource_state', 'U') IS NULL
BEGIN
    CREATE TABLE dbo.wcs_resource_state (
        warehouse_code varchar(64) NOT NULL,
        topology_version bigint NOT NULL,
        resource_key varchar(320) NOT NULL,
        capacity int NOT NULL,
        reserved_count int NOT NULL,
        occupied_count int NOT NULL,
        fencing_token bigint NOT NULL,
        state_version bigint NOT NULL,
        CONSTRAINT pk_wcs_resource_state PRIMARY KEY (
            warehouse_code, topology_version, resource_key),
        CONSTRAINT fk_wcs_resource_state_definition FOREIGN KEY (
            warehouse_code, topology_version, resource_key)
            REFERENCES dbo.wcs_resource_definition(
                warehouse_code, topology_version, resource_key),
        CONSTRAINT ck_wcs_resource_state_counts CHECK (
            capacity > 0 AND reserved_count >= 0 AND occupied_count >= 0
            AND reserved_count + occupied_count <= capacity),
        CONSTRAINT ck_wcs_resource_state_fencing CHECK (fencing_token >= 0),
        CONSTRAINT ck_wcs_resource_state_version CHECK (state_version >= 0)
    );
END;

IF OBJECT_ID('dbo.wcs_resource_reservation', 'U') IS NULL
BEGIN
    CREATE TABLE dbo.wcs_resource_reservation (
        reservation_id varchar(128) NOT NULL,
        warehouse_code varchar(64) NOT NULL,
        topology_version bigint NOT NULL,
        resource_key varchar(320) NOT NULL,
        order_id varchar(64) NOT NULL,
        step_id varchar(128) NOT NULL,
        vehicle_id varchar(64) NOT NULL,
        reservation_state varchar(32) NOT NULL,
        fencing_token bigint NOT NULL,
        release_evidence_id varchar(128) NULL,
        created_time datetime2(3) NOT NULL,
        updated_time datetime2(3) NOT NULL,
        CONSTRAINT pk_wcs_resource_reservation PRIMARY KEY (
            reservation_id, resource_key),
        CONSTRAINT fk_wcs_resource_reservation_state FOREIGN KEY (
            warehouse_code, topology_version, resource_key)
            REFERENCES dbo.wcs_resource_state(
                warehouse_code, topology_version, resource_key),
        CONSTRAINT ck_wcs_resource_reservation_fencing CHECK (fencing_token > 0)
    );
END;

IF OBJECT_ID('dbo.wcs_traffic_decision_event', 'U') IS NULL
BEGIN
    CREATE TABLE dbo.wcs_traffic_decision_event (
        event_id varchar(128) NOT NULL PRIMARY KEY,
        warehouse_code varchar(64) NOT NULL,
        topology_version bigint NOT NULL,
        snapshot_version bigint NOT NULL,
        order_id varchar(64) NOT NULL,
        step_id varchar(128) NOT NULL,
        vehicle_id varchar(64) NULL,
        decision_type varchar(16) NOT NULL,
        reason_code varchar(128) NOT NULL,
        occurred_time datetime2(3) NOT NULL
    );
END;

COMMIT TRANSACTION;