local window = require('window')
local entity = require('entity')

-- 320x240
local edge_data = {
    up = {
        x = 120,
        y = 10,
        width = 80,
        height = 10,
        lines = {'fill', {0, 10, 80, 10, 40, 0}},
    },

    down = {
        x = 120,
        y = 220,
        width = 80,
        height = 10,
        lines = {'fill', {0, 0, 80, 0, 40, 10}},
    },

    left = {
        x = 10,
        y = 80,
        width = 10,
        height = 80,
        lines = {'fill', {10, 0, 10, 80, 0, 40}},
    },

    right = {
        x = 300,
        y = 80,
        width = 10,
        height = 80,
        lines = {'fill', {0, 0, 0, 80, 10, 40}},
    }
}

local edge = entity:from{
    dir = "up",
    destination = "nowhere",

    mousepressed = window.mousepressed(function (self)
        if type(self.destination) == 'string' then
            log:log(string.format("You enter %s", self.destination))
            set_room(self.destination)
        elseif type(self.destination) == 'table' then
            set_room_raw(self.destination)
        else
            error("destination is not valid")
        end
    end)
}

local mt = {
    __index = function (t, k)
        if edge_data[t.dir][k] then
            return edge_data[t.dir][k]
        else
            return edge[k]
        end
    end
}

function edge:set(room, dir, dst)
    local e = self:from{
        dir = dir,
        destination = dst,
    }

    setmetatable(e, mt)

    table.insert(room.edges, e)
end

return edge