-- @include /koptilnya/libs/wire_component.txt
-- @include ./steering_axle.txt
-- @include /koptilnya/libs/table.txt
require('/koptilnya/libs/wire_component.txt')
require('./steering_axle.txt')
require('/koptilnya/libs/table.txt')

Steering = class('Steering', WireComponent)

function Steering:initialize(options)
    options = options or {}
    self.axles = {}
    self.steer = 0
    self.sensitivity = options.Sensitivity or 1

    for key, axle in ipairs(options.Axles) do
        axle.Order = key
        axle.Base = wire.ports.Base
        table.insert(self.axles, SteeringAxle:new(axle))
    end

    self:_adjustPorts()

    hook.add('tick', 'update', function()
        self:update()
    end)
end

function Steering:_adjustPorts()
    local inputs = {}
    local outputs = {}

    inputs = table.merge(inputs, self:getInputs())
    outputs = table.merge(outputs, self:getOutputs())

    for _, axle in ipairs(self.axles) do
        inputs = table.merge(inputs, axle:getInputs())
        outputs = table.merge(outputs, axle:getOutputs())
    end

    wire.adjustPorts(inputs, outputs)
end

function Steering:getInputs()
    return {
        TargetSteer = 'number',
        Base = 'entity'
    }
end

function Steering:getOutputs()
    return {
        Steer = 'number'
    }
end

function Steering:updateOutputs()
    -- local totalSteeringAngle = table.reduce(self.slaves, function(steer, slave)
    --     return steer + slave.direction * slave.steeringAngle / (slave.lock ~= 0 and slave.lock or 1)
    -- end, 0)

    -- local steerableSlaves = table.filter(self.slaves, function(slave)
    --     return slave.lock ~= 0
    -- end)

    -- wire.ports.Steer = totalSteeringAngle / #steerableSlaves
end

function Steering:update()
    self.steer = wire.ports.TargetSteer * self.sensitivity

    self:updateOutputs()

    for _, axle in ipairs(self.axles) do
        axle.steer = self.steer
        axle:update()
        axle:updateOutputs()
    end
end