@LAZYGLOBAL OFF.

run once "lib/node".
run once "lib/target".
run once "lib/vectors".
run once "ascend".
run once "dock".


// Tabs bar & main frame
local window is gui(350).
local tabs_bar is window:addhlayout().
local tab_frame is window:addstack().


function add_tab {
    parameter name.

    local frame is tab_frame:addvbox().
    local tab_button is tabs_bar:addbutton(name).
    set tab_button:exclusive to true. // TODO
    set tab_button:onclick to { tab_frame:showonly(frame). }.

    return frame.
}


function add_parameters_layout {
    parameter widget.

    local layout is widget:addvlayout().
    local text_parameters is layout:addhlayout().

    return LEXICON(
        "names", text_parameters:addvlayout(),
        "inputs", text_parameters:addvlayout(),
        "units", text_parameters:addvlayout(),
        "checkboxes", layout:addvlayout()
    ).
}

function add_parameter {
    parameter parameters_layout.
    parameter name.
    parameter default is "".
    parameter unit is "".

    if default:istype("Boolean") {  // checkbox
        return parameters_layout["checkboxes"]:addcheckbox(name, default).
    }
    parameters_layout["names"]:addlabel(name).
    parameters_layout["units"]:addlabel(unit).
    return parameters_layout["inputs"]:addtextfield(default).
}



// ASCEND GUIDANCE
{
    local tab is add_tab("Ascend").
    local parameters is add_parameters_layout(tab).

    local target_orbit_altitude is add_parameter(parameters, "Target orbit altitude", "100", "km").
    local target_orbit_inclination is add_parameter(parameters, "Target orbit inclination (0-180)", "0", "°").
    local pitchover_tilt is add_parameter(parameters, "Pitchover tilt", "20", "°").
    local pitchover_altitude is add_parameter(parameters, "Pitchover altitude", "1000", "m").
    local pitchover_velocity is add_parameter(parameters, "Pitchover velocity", "100", "m/s").
    local auto_stage is add_parameter(parameters, "Auto stage", true).
    local auto_deploy_solar_panels is add_parameter(parameters, "Auto deplay solar panels", true).
    local auto_deploy_fairings is add_parameter(parameters, "Auto deplay fairings", true).
    local auto_extend_antennas is add_parameter(parameters, "Auto extend antennas", true).

    set tab:addbutton("Launch"):onclick to {
        launch(target_orbit_altitude:text:tonumber*1000,
               target_orbit_inclination:text:tonumber,
               pitchover_tilt:text:tonumber,
               pitchover_altitude:text:tonumber,
               pitchover_velocity:text:tonumber,
               auto_stage:pressed,
               auto_deploy_solar_panels:pressed,
               auto_deploy_fairings:pressed,
               auto_extend_antennas:pressed).
    }.
}


// DOCKING
{
    local tab is add_tab("Docking").

    local local_vdraw is vdraw(V(0,0,0), V(0,0,0), CYAN).
    local target_vdraw is vdraw(V(0,0,0), V(0,0,0), CYAN).

    local function add_port_popup {
        parameter label.
        parameter draw.
        parameter options is LIST().

        tab:addlabel(label).
        local popup is tab:addpopupmenu().
        set popup:optionsuffix to "title".  // make the popup display the port's :title instead of :tostring
        for port in options {
            popup:addoption(port).
        }

        set popup:onchange to {
            parameter value.
            set draw:show to true.
            set draw:startupdater to {return value:nodeposition.}.
            set draw:vecupdater to {return value:portfacing:vector.}.
        }.

        return popup.
    }

    local local_ports is add_port_popup("Local docking port", local_vdraw, SHIP:dockingports).
    local target_ports is add_port_popup("Target docking port", target_vdraw).
    set tab:addbutton("Refresh"):onclick to {
        target_ports:clear().
        if not HASTARGET {
            print "No target".
            return.
        }
        for port in target_ship():dockingports {
            target_ports:addoption(port).
        }
    }.

    local parameters is add_parameters_layout(tab).
    local max_translation_speed is add_parameter(parameters, "Max translation speed", "1.0", "m/s").
    local final_docking_speed is add_parameter(parameters, "Final docking speed", "0.1", "m/s").

    set tab:addbutton("Dock"):onclick to {
        local_ports:value:CONTROLFROM().
        set TARGET to target_ports:value.
        set local_vdraw:show to false.
        set target_vdraw:show to false.
        dock(max_translation_speed:text:tonumber,
             final_docking_speed:text:tonumber).
    }.
}


// MANEUVERS
{
    local tab is add_tab("Maneuvers").

    // TODO: Like MechJebs "circularize at apoapsis/periapsis, change inclination etc.
    // tab:addbutton("Add Maneuver Node") ...

    set tab:addbutton("Execute Next Maneuver Node"):onclick to { execute_burn(NEXTNODE). }.
}


// RENDEZVOUS
{
    local tab is add_tab("Rendezvous").

    // TODO: What about tolerance parameter?
    set tab:addbutton("Kill Relative Velocity"):onclick to { kill_relative_velocity(). }.
}



// Close button
tabs_bar:addspacing(10).
local close_button is tabs_bar:addbutton("X").
window:show().

wait until close_button:pressed.
window:hide().