local Material = require "Material"
local Quantity = require "Quantity"


local
function inputs (amount, opt, ...)
	local acc
	local function _in (head, ...)
		if head ~= nil then
			table.insert(acc, Quantity{amount, head})
			return _in(...)
		end
		return acc
	end
	if type(amount) == "table" then
		acc = amount
		amount = opt
		return _in(...)
	end
	acc = {}
	return _in(opt, ...)
end


local metatable = {
	__tostring = function (self)
		return ("Recipe[%q]"):format(self.output.material)
	end
}


local
function recipe (input, output, duration)
	return setmetatable({input=input, output=output, duration=duration}, metatable)
end


local
function p1 (basic, resource)
	return recipe(
		{Quantity{3000, resource}},
		Quantity{20, basic},
		1800)
end


local
function p2 (refined, first, second)
	return recipe(
		{Quantity{40, first}, Quantity{40, second}},
		Quantity{5, refined},
		3600)
end


local
function p3 (specialized, ...)
	return recipe(
		inputs(10, ...),
		Quantity{3, specialized},
		3600)
end


local
function p4_a (advanced, ...)
	return recipe(
		inputs(6, ...),
		Quantity{1, advanced},
		3600)
end


local
function p4_b (advanced, first, ...)
	return recipe(
		inputs({Quantity{40, first}}, 6, ...),
		Quantity{1, advanced},
		3600)
end


local recipes = {
	-- P1
	p1(Material.Water, Material.AqueousLiquids),
	p1(Material.IndustrialFibers, Material.Autotrophs),
	p1(Material.ReactiveMetals, Material.BaseMetals),
	p1(Material.Biofuels, Material.CarbonCompounds),
	p1(Material.Proteins, Material.ComplexOrganisms),
	p1(Material.Silicon, Material.FelsicMagma),
	p1(Material.ToxicMetals, Material.HeavyMetals),
	p1(Material.Electrolytes, Material.IonicSolutions),
	p1(Material.Bacteria, Material.MicroOrganisms),
	p1(Material.Oxygen, Material.NobleGas),
	p1(Material.PreciousMetals, Material.NobleMetals),
	p1(Material.ChiralStructures, Material.NonCSCrystals),
	p1(Material.Biomass, Material.PlankticColonies),
	p1(Material.OxidizingCompound, Material.ReactiveGas),
	p1(Material.Plasmoids, Material.SuspendedPlasma),
	-- P2
	p2(Material.Biocells, Material.Biofuels, Material.PreciousMetals),
	p2(Material.ConstructionBlocks, Material.ReactiveMetals, Material.ToxicMetals),
	p2(Material.ConsumerElectronics, Material.ToxicMetals, Material.ChiralStructures),
	p2(Material.Coolant, Material.Water, Material.Electrolytes),
	p2(Material.EnrichedUranium, Material.ToxicMetals, Material.PreciousMetals),
	p2(Material.Fertilizer, Material.Proteins, Material.Bacteria),
	p2(Material.GenEnhancedLivestock, Material.Proteins, Material.Biomass),
	p2(Material.Livestock, Material.Biofuels, Material.Proteins),
	p2(Material.MechanicalParts, Material.ReactiveMetals, Material.PreciousMetals),
	p2(Material.MicrofiberShielding, Material.IndustrialFibers, Material.Silicon),
	p2(Material.MiniatureElectronics, Material.Silicon, Material.ChiralStructures),
	p2(Material.Nanites, Material.ReactiveMetals, Material.Bacteria),
	p2(Material.Oxides, Material.Oxygen, Material.OxidizingCompound),
	p2(Material.Polyaramids, Material.IndustrialFibers, Material.OxidizingCompound),
	p2(Material.Polytextiles, Material.IndustrialFibers, Material.Biofuels),
	p2(Material.RocketFuel, Material.Electrolytes, Material.Plasmoids),
	p2(Material.SilicateGlass, Material.Silicon, Material.OxidizingCompound),
	p2(Material.Superconductors, Material.Water, Material.Plasmoids),
	p2(Material.SupertensilePlastics, Material.Oxygen, Material.Biomass),
	p2(Material.SyntheticOil, Material.Electrolytes, Material.Oxygen),
	p2(Material.TestCultures, Material.Water, Material.Bacteria),
	p2(Material.Transmitter, Material.ChiralStructures, Material.Plasmoids),
	p2(Material.ViralAgent, Material.Bacteria, Material.Biomass),
	p2(Material.WaterCooledCPU, Material.Water, Material.ReactiveMetals),
	-- P3
	p3(Material.BiotechResearchReports, Material.ConstructionBlocks, Material.Livestock, Material.Nanites),
	p3(Material.CameraDrones, Material.RocketFuel, Material.SilicateGlass),
	p3(Material.Condensates, Material.Coolant, Material.Oxides),
	p3(Material.CryoprotectantSolution, Material.Fertilizer, Material.SyntheticOil, Material.TestCultures),
	p3(Material.DataChips, Material.MicrofiberShielding, Material.SupertensilePlastics),
	p3(Material.GelMatrixBiopaste, Material.Biocells, Material.Oxides, Material.Superconductors),
	p3(Material.GuidanceSystems, Material.Transmitter, Material.WaterCooledCPU),
	p3(Material.HazmatDetectionSystems, Material.Polytextiles, Material.Transmitter, Material.ViralAgent),
	p3(Material.HermeticMembranes, Material.GenEnhancedLivestock, Material.Polyaramids),
	p3(Material.HighTechTransmitters, Material.Polyaramids, Material.Transmitter),
	p3(Material.IndustrialExplosives, Material.Fertilizer, Material.Polytextiles),
	p3(Material.Neocoms, Material.Biocells, Material.SilicateGlass),
	p3(Material.NuclearReactors, Material.EnrichedUranium, Material.MicrofiberShielding),
	p3(
		Material.PlanetaryVehicles,
		Material.MechanicalParts, Material.MiniatureElectronics, Material.SupertensilePlastics),
	p3(Material.Robotics, Material.ConsumerElectronics, Material.MechanicalParts),
	p3(Material.SmartfabUnits, Material.ConstructionBlocks, Material.MiniatureElectronics),
	p3(Material.Supercomputers, Material.ConsumerElectronics, Material.Coolant, Material.WaterCooledCPU),
	p3(Material.SyntheticSynapses, Material.SupertensilePlastics, Material.TestCultures),
	p3(Material.TranscranialMicrocontrollers, Material.Biocells, Material.Nanites),
	p3(Material.UkomiSuperConductors, Material.Superconductors, Material.SyntheticOil),
	p3(Material.Vaccines, Material.Livestock, Material.ViralAgent),
	-- P4
	p4_a(Material.BroadcastNode, Material.DataChips, Material.HighTechTransmitters, Material.Neocoms),
	p4_a(
		Material.IntegrityResponseDrones,
		Material.GelMatrixBiopaste, Material.HazmatDetectionSystems, Material.PlanetaryVehicles),
	p4_a(
		Material.RecursiveComputingModule,
		Material.GuidanceSystems, Material.SyntheticSynapses, Material.TranscranialMicrocontrollers),
	p4_a(
		Material.SelfHarmonizingPowerCore,
		Material.CameraDrones, Material.HermeticMembranes, Material.NuclearReactors),
	p4_a(
		Material.WetwareMainframe,
		Material.BiotechResearchReports, Material.CryoprotectantSolution, Material.Supercomputers),
	p4_b(Material.NanoFactory, Material.ReactiveMetals, Material.IndustrialExplosives, Material.UkomiSuperConductors),
	p4_b(Material.OrganicMortarApplicators, Material.Bacteria, Material.Condensates, Material.Robotics),
	p4_b(Material.SterileConduits, Material.Water, Material.SmartfabUnits, Material.Vaccines),
}


local lookup = {}
for _, recipe in pairs(recipes) do
	lookup[recipe.output.material] = recipe
end
return lookup