local alpha_order = {'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm'}
local graphics_location = '__PHI-EQ__/graphics/'
local items = {'solar-panel', 'fusion-reactor', 'personal-laser-defense', 'battery', 'energy-shield', 'personal-roboport', 'night-vision', 'exoskeleton'}

-- equipment
local function EE(source, tier)
    local item = {}
    item['name'] = source .. '-mk' .. tier .. '-equipment'
    item['categories'] = {'armor'}
    local w = 1
    local h = 1

    if (source == 'solar-panel') then
        item['type'] = 'solar-panel-equipment'
        item['power'] = (30 * (2 ^ (tier - 1))) .. 'kW'
        item['energy_source'] = {type = 'electric', usage_priority = 'primary-output'}
    elseif (source == 'battery') then
        h = 2
        item['type'] = 'battery-equipment'
        item['energy_source'] = {type = 'electric', usage_priority = 'tertiary', buffer_capacity= (100 * (2 ^ (tier - 2))) .. 'MJ'}
    elseif (source == 'fusion-reactor') then
        w = 4
        h = 4
        item['type'] = 'generator-equipment'
        item['power'] = (750 * (2 ^ (tier - 1))) .. 'kW'
        item['energy_source'] = {type = 'electric', usage_priority = 'primary-output'}
    elseif (source == 'personal-laser-defense') then
        w = 2
        h = 2
        item['type'] = 'active-defense-equipment'
        item['energy_source'] = {type = 'electric', usage_priority = 'secondary-input', buffer_capacity = (250 * (2 ^ (tier - 1))) .. 'kJ'}
        -- item['source_direction_count'] = 64
        -- item['source_offset'] = {0, -3.423489 / 4}
        item['attack_parameters'] = {type = 'beam', cooldown = 60, range = (18 + tier), damage_modifier = (3 * (2 ^ (tier - 1))), ammo_type = {category = 'laser', energy_consumption = (50 * (2 ^ (tier - 1))) .. 'kJ', action = {type = 'direct', action_delivery = {type = 'beam', beam = 'laser-beam', max_length = (18 + tier), duration = 60, source_offset = {0, -1.31439}}}}}
        item['automatic'] = true
    elseif (source == 'energy-shield') then
        w = 2
        h = 2
        item['type'] = 'energy-shield-equipment'
        item['energy_source'] = {type = 'electric', usage_priority = 'primary-input', input_flow_limit = (1000 * (2 ^ (tier - 1))) .. 'kW', buffer_capacity = (480 * (2 ^ (tier - 1))) .. 'kJ'}
        item['max_shield_value'] = (150 * (2 ^ (tier - 2)))
        item['energy_per_shield'] = '80kJ'
    elseif (source == 'personal-roboport') then
        w = 2
        h = 2
        item['type'] = 'roboport-equipment'
        item['energy_source'] = {type = 'electric', usage_priority = 'secondary-input', buffer_capacity = (80 * (2 ^ (tier - 1))) .. 'MJ'}
        item['robot_limit'] = 50
        item['construction_radius'] = 32
        item['spawn_and_station_height'] = 0.4
        item['spawn_and_station_shadow_height_offset'] = 0.5
        item['charge_approach_distance'] = 2.6
        item['robots_shrink_when_entering_and_exiting'] = true
        item['recharging_animation'] = {filename = '__base__/graphics/entity/roboport/roboport-recharging.png', draw_as_glow = true, priority = 'high', width = 37, height = 35, frame_count = 16, scale = 1.5, animation_speed = 0.5}
        item['recharging_light'] = {intensity = 0.2, size = 3, color = {r = 0.5, g = 0.5, b = 1.0}}
        item['stationing_offset'] = {0, -0.6}
        item['charging_station_shift'] = {0, 0.5}
        item['charging_station_count'] = 16
        item['charging_energy'] = (0.5 * (2 ^ (tier - 2))) .. 'MW'
        item['charging_distance'] = 1.6
        item['charging_threshold_distance'] = 5
    elseif (source == 'night-vision') then
        w = 2
        h = 2
        item['type'] = 'night-vision-equipment'
        item['energy_source'] = {type = 'electric', usage_priority = 'primary-input', buffer_capacity = '1MJ'}
        item['energy_input'] = '20kW'
        item['activate_sound'] = {filename = '__base__/sound/nightvision-on.ogg', volume = 0.5}
        item['deactivate_sound'] = {filename = '__base__/sound/nightvision-off.ogg', volume = 0.5}
        item['darkness_to_turn_on'] = 1
        item['color_lookup'] = {{0, '__core__/graphics/color_luts/lut-sunset.png'}}
    elseif (source == 'exoskeleton') then
        w = 2
        h = 4
        item['type'] = 'movement-bonus-equipment'
        item['energy_source'] = {type = 'electric', usage_priority = 'secondary-input', buffer_capacity = '10MJ'}
        item['energy_consumption'] = '400kW'
        item['movement_bonus'] = 0.6
    end

    item['shape'] = {width = w, height = h, type = 'full'}
    item['sprite'] = {filename = graphics_location .. source .. '-equipment-e.png', width = w * 32, height = h * 32, priority = 'medium', hr_version = {filename = graphics_location .. source .. '-equipment-eh.png', width = w * 64, height = h *64, priority = 'medium', scale = 0.5}}
    data:extend({item})
end

-- item
local function EI(source, tier)
    local item = table.deepcopy(data.raw.item[source .. '-equipment'])
    item.name = source .. '-mk' .. tier .. '-equipment'
    item.placed_as_equipment_result = source .. '-mk' .. tier .. '-equipment'
    item.subgroup = 'equipment'
    item.stack_size = 20
    item.default_request_amount = 5
    item.icons = {{icon = graphics_location .. source .. '-equipment-i.png', icon_mipmaps = 4, icon_size = 64}}

    if (source == 'solar-panel') then
        item.order = 'a[energy-source]-a' .. alpha_order[tier - 1] .. '[' .. source .. '-mk' .. tier .. ']'
    elseif (source == 'battery') then
        item.order = 'b[battery]-b' .. alpha_order[tier] .. '[' .. source .. 'equipment-mk' .. tier .. ']'
    elseif (source == 'fusion-reactor') then
        item.order = 'a[energy-source]-b' .. alpha_order[tier - 1] .. '[' .. source .. '-mk' .. tier .. ']'
    elseif (source == 'personal-laser-defense') then
        item.order = 'd[active-defense]-b' .. alpha_order[tier - 1] .. '[' .. source .. '-mk' .. tier .. ']'
    elseif (source == 'energy-shield') then
        item.order = 'b[shield]-c' .. alpha_order[tier - 1] .. '[' .. source .. '-equipment-mk' .. tier .. ']'
    elseif (source == 'personal-roboport') then
        item.order = 'e[robotics]-b' .. alpha_order[tier - 1] .. '[' .. source .. '-mk' .. tier .. '-equipment]'
    elseif (source == 'night-vision') then
        item.order = 'f[night-vision]-a' .. alpha_order[tier - 1] .. '[' .. source .. '-mk' .. tier .. ']'
    elseif (source == 'exoskeleton') then
        item.order = 'd[exoskeleton]-a' .. alpha_order[tier - 1] .. '[' .. source .. 'equipment-mk' .. tier .. ']'
    end

    data:extend({item})
end

-- recipe
local function ER(source, tier)
    na = source

    if (tier == 2) then
        na = source .. '-equipment'
    elseif (tier >= 3) then
        na = source .. '-mk' .. (tier - 1) .. '-equipment'
    end

    data:extend({{
        type = 'recipe',
        name = source .. '-mk' .. tier .. '-equipment',
        energy_required = 2,
        enabled = false,
        ingredients = {{na, 2}},
        result = source .. '-mk' .. tier .. '-equipment',
    }})
end

for _, animation in ipairs(data.raw['character']['character']['animations']) do
    if animation.armors then
        for _, armor in ipairs(animation.armors) do
            if armor == 'power-armor-mk2' then
                animation.armors[#animation.armors + 1] = 'power-armor-mk3'
                break
            end
        end
    end
end

data:extend({
    {
        type = 'equipment-grid',
        name = 'equipment-grid-14x14',
        width = 14,
        height = 14,
        equipment_categories = {'armor'}
    },
    {
        type = 'armor',
        name = 'power-armor-mk3',
        icon = '__base__/graphics/icons/power-armor-mk2.png',
        icon_size = 64, icon_mipmaps = 4,
        resistances = {{type = 'physical', decrease = 20, percent = 50}, {type = 'acid', decrease = 20, percent = 80},
        {type = 'explosion', decrease = 70, percent = 60}, {type = 'fire', decrease = 20, percent = 80},
        {type = 'laser', decrease = 20, percent = 50}, {type = 'electric', decrease = 20, percent = 50},
        {type = 'impact', decrease = 20, percent = 50}, {type = 'poison', decrease = 20, percent = 50}},
        subgroup = 'armor',
        order = 'eb[power-armor-mk3]',
        stack_size = 1,
        infinite = true,
        equipment_grid = 'equipment-grid-14x14',
        inventory_size_bonus = 40,
        open_sound = {filename =  '__base__/sound/armor-open.ogg', volume = 1},
        close_sound = {filename = '__base__/sound/armor-close.ogg', volume = 1}
    }
})

data:extend({{
    type = 'recipe',
    name = 'power-armor-mk3',
    energy_required = 5,
    enabled = 'false',
    ingredients = {{'power-armor-mk2', 2}},
    result = 'power-armor-mk3'
}})

for i=1, 8, 1 do
    if (i <= 3) then
        for j=2, 8, 1 do
            EE(items[i], j)
            EI(items[i], j)
            ER(items[i], j)
        end
    elseif (i <= 6) then
        for j=3, 8, 1 do
            EE(items[i], j)
            EI(items[i], j)
            ER(items[i], j)
        end
    elseif (i <= 8) then
        EE(items[i], 2)
        EI(items[i], 2)
        ER(items[i], 2)
    end
end

table.insert(data.raw.technology['power-armor-mk2'].effects, {type='unlock-recipe', recipe='power-armor-mk3'})

table.insert(data.raw.technology['night-vision-equipment'].effects, {type='unlock-recipe', recipe='night-vision-mk2-equipment'})

table.insert(data.raw.technology['exoskeleton-equipment'].effects, {type='unlock-recipe', recipe='exoskeleton-mk2-equipment'})

table.insert(data.raw.technology['solar-panel-equipment'].effects, {type='unlock-recipe', recipe='solar-panel-mk2-equipment'})
table.insert(data.raw.technology['solar-panel-equipment'].effects, {type='unlock-recipe', recipe='solar-panel-mk3-equipment'})
table.insert(data.raw.technology['solar-panel-equipment'].effects, {type='unlock-recipe', recipe='solar-panel-mk4-equipment'})
table.insert(data.raw.technology['solar-panel-equipment'].effects, {type='unlock-recipe', recipe='solar-panel-mk5-equipment'})
table.insert(data.raw.technology['solar-panel-equipment'].effects, {type='unlock-recipe', recipe='solar-panel-mk6-equipment'})
table.insert(data.raw.technology['solar-panel-equipment'].effects, {type='unlock-recipe', recipe='solar-panel-mk7-equipment'})
table.insert(data.raw.technology['solar-panel-equipment'].effects, {type='unlock-recipe', recipe='solar-panel-mk8-equipment'})

table.insert(data.raw.technology['fusion-reactor-equipment'].effects, {type='unlock-recipe', recipe='fusion-reactor-mk2-equipment'})
table.insert(data.raw.technology['fusion-reactor-equipment'].effects, {type='unlock-recipe', recipe='fusion-reactor-mk3-equipment'})
table.insert(data.raw.technology['fusion-reactor-equipment'].effects, {type='unlock-recipe', recipe='fusion-reactor-mk4-equipment'})
table.insert(data.raw.technology['fusion-reactor-equipment'].effects, {type='unlock-recipe', recipe='fusion-reactor-mk5-equipment'})
table.insert(data.raw.technology['fusion-reactor-equipment'].effects, {type='unlock-recipe', recipe='fusion-reactor-mk6-equipment'})
table.insert(data.raw.technology['fusion-reactor-equipment'].effects, {type='unlock-recipe', recipe='fusion-reactor-mk7-equipment'})
table.insert(data.raw.technology['fusion-reactor-equipment'].effects, {type='unlock-recipe', recipe='fusion-reactor-mk8-equipment'})

table.insert(data.raw.technology['battery-mk2-equipment'].effects, {type='unlock-recipe', recipe='battery-mk3-equipment'})
table.insert(data.raw.technology['battery-mk2-equipment'].effects, {type='unlock-recipe', recipe='battery-mk4-equipment'})
table.insert(data.raw.technology['battery-mk2-equipment'].effects, {type='unlock-recipe', recipe='battery-mk5-equipment'})
table.insert(data.raw.technology['battery-mk2-equipment'].effects, {type='unlock-recipe', recipe='battery-mk6-equipment'})
table.insert(data.raw.technology['battery-mk2-equipment'].effects, {type='unlock-recipe', recipe='battery-mk7-equipment'})
table.insert(data.raw.technology['battery-mk2-equipment'].effects, {type='unlock-recipe', recipe='battery-mk8-equipment'})

table.insert(data.raw.technology['personal-laser-defense-equipment'].effects, {type='unlock-recipe', recipe='personal-laser-defense-mk2-equipment'})
table.insert(data.raw.technology['personal-laser-defense-equipment'].effects, {type='unlock-recipe', recipe='personal-laser-defense-mk3-equipment'})
table.insert(data.raw.technology['personal-laser-defense-equipment'].effects, {type='unlock-recipe', recipe='personal-laser-defense-mk4-equipment'})
table.insert(data.raw.technology['personal-laser-defense-equipment'].effects, {type='unlock-recipe', recipe='personal-laser-defense-mk5-equipment'})
table.insert(data.raw.technology['personal-laser-defense-equipment'].effects, {type='unlock-recipe', recipe='personal-laser-defense-mk6-equipment'})
table.insert(data.raw.technology['personal-laser-defense-equipment'].effects, {type='unlock-recipe', recipe='personal-laser-defense-mk7-equipment'})
table.insert(data.raw.technology['personal-laser-defense-equipment'].effects, {type='unlock-recipe', recipe='personal-laser-defense-mk8-equipment'})

table.insert(data.raw.technology['energy-shield-mk2-equipment'].effects, {type='unlock-recipe', recipe='energy-shield-mk3-equipment'})
table.insert(data.raw.technology['energy-shield-mk2-equipment'].effects, {type='unlock-recipe', recipe='energy-shield-mk4-equipment'})
table.insert(data.raw.technology['energy-shield-mk2-equipment'].effects, {type='unlock-recipe', recipe='energy-shield-mk5-equipment'})
table.insert(data.raw.technology['energy-shield-mk2-equipment'].effects, {type='unlock-recipe', recipe='energy-shield-mk6-equipment'})
table.insert(data.raw.technology['energy-shield-mk2-equipment'].effects, {type='unlock-recipe', recipe='energy-shield-mk7-equipment'})
table.insert(data.raw.technology['energy-shield-mk2-equipment'].effects, {type='unlock-recipe', recipe='energy-shield-mk8-equipment'})

table.insert(data.raw.technology['personal-roboport-mk2-equipment'].effects, {type='unlock-recipe', recipe='personal-roboport-mk3-equipment'})
table.insert(data.raw.technology['personal-roboport-mk2-equipment'].effects, {type='unlock-recipe', recipe='personal-roboport-mk4-equipment'})
table.insert(data.raw.technology['personal-roboport-mk2-equipment'].effects, {type='unlock-recipe', recipe='personal-roboport-mk5-equipment'})
table.insert(data.raw.technology['personal-roboport-mk2-equipment'].effects, {type='unlock-recipe', recipe='personal-roboport-mk6-equipment'})
table.insert(data.raw.technology['personal-roboport-mk2-equipment'].effects, {type='unlock-recipe', recipe='personal-roboport-mk7-equipment'})
table.insert(data.raw.technology['personal-roboport-mk2-equipment'].effects, {type='unlock-recipe', recipe='personal-roboport-mk8-equipment'})