local FNPC_UPDATE_RAGDOLL = 1
local nextName
local tbNPCs = {}
hook.Add("PlayerSpawnNPC","CPspawngetname",function(pl,name,wepName) nextName = name end)

local cv = GetConVar("ai_serverragdolls")
local function CreateRagdoll(ent,model,npc)
    local rep = ents.Create("prop_ragdoll")
    rep:SetPos(ent:GetPos())
    rep:SetAngles(ent:GetAngles())
    rep:SetModel(model || ent:GetModel())
    rep:SetSkin(ent:GetSkin())
    rep:SetMaterial(ent:GetMaterial())
    rep:SetVelocity(ent:GetVelocity())
    rep:SetOwner(ent:GetOwner())
    for i = 0,18 do rep:SetBodygroup(i,ent:GetBodygroup(i)) end
    rep:Spawn()
    rep:Activate()
    if(!cv:GetBool()) then
        rep:SetCollisionGroup(COLLISION_GROUP_DEBRIS)
    end
    for i = 0,rep:GetPhysicsObjectCount() -1 do
        local phys = ent:GetPhysicsObjectNum(i)
        local physRep = rep:GetPhysicsObjectNum(i)
        if(IsValid(phys) && IsValid(physRep)) then
            physRep:SetVelocity(phys:GetVelocity())
            physRep:AddAngleVelocity(phys:GetAngleVelocity())
            physRep:SetPos(phys:GetPos())
            physRep:SetAngles(phys:GetAngles())
        end
    end
    cleanup.ReplaceEntity(npc || ent,rep)
    undo.ReplaceEntity(npc || ent,rep)
    return rep
end

local function CreateReplacement(ent,model,npc)
    local rep = CreateRagdoll(ent,model,npc)
    ent:Remove()
    return rep
end

local function CreateModelFixHooks(npc)
    local data = tbNPCs[npc:GetNetworkedString("cname")]
    if(!data) then return end
    local idx = npc:EntIndex()
    local hk = "npcupdateragdoll" .. idx
    local t = UnPredictedCurTime()
    hook.Add("OnEntityCreated",hk,function(ent)
        local tCur = UnPredictedCurTime()
        if(tCur -t >= 0.25) then
            hook.Remove("OnEntityCreated",hk)
            return
        end
        if(SERVER) then
            if(ent:GetClass() == "prop_ragdoll" && ent:GetOwner() == npc) then
                CreateReplacement(ent,data.model,npc)
                hook.Remove("OnEntityCreated",hk)
            end
        else
            if(ent:GetClass() == "class C_ClientRagdoll" && (ent:GetPos() -npc:GetPos()):Length() <= 0.5) then
                --ent:SetModel(data.model)
                ent:Remove()
            end
        end
    end)
end

if(SERVER) then
    AddCSLuaFile()
    util.AddNetworkString("npc_killed_fixragdoll")
else
    net.Receive("npc_killed_fixragdoll",function(len)
        local ent = net.ReadEntity()
        if(!ent:IsValid()) then return end
        CreateModelFixHooks(ent)
    end)
end

hook.Add("PlayerSpawnedNPC","CPspawnupdatemodel",function(pl,npc)
    if(!nextName) then return end
    if(tbNPCs[nextName]) then
        local data = tbNPCs[nextName]
        local model = data.model
        local min,max = npc:GetCollisionBounds()
        local hull = npc:GetHullType()
        npc:SetModel(model)
        npc:SetSolid(SOLID_BBOX)
        npc:SetHullType(hull)
        npc:SetHullSizeNormal()
        npc:SetCollisionBounds(min,max)
        npc:DropToFloor()
        npc:SetNetworkedString("cname",nextName)
        if(data.flags && bit.band(data.flags,FNPC_UPDATE_RAGDOLL) == FNPC_UPDATE_RAGDOLL) then
            local idx = npc:EntIndex()
            local hk = "npcupdateragdoll" .. idx
            hook.Add("OnNPCKilled",hk,function(ent)
                if(ent == npc) then
                    hook.Remove("OnNPCKilled",hk)
                    if(!cv:GetBool()) then CreateRagdoll(npc,model)
                    else CreateModelFixHooks(npc) end
                    net.Start("npc_killed_fixragdoll")
                        net.WriteEntity(npc)
                    net.Broadcast()
                end
            end)
            npc:CallOnRemove(hk,function()
                hook.Remove("OnNPCKilled",hk)
                hook.Remove("OnEntityCreated",hk)
            end)
        end
    end
    nextName = nil
end)

local function AddNPC(category,name,class,model,keyvalues,skin,weapons,flags)
    list.Set("NPC",name,{Name = name,Class = class,Skin = skin,Model = model,Category = category,KeyValues = keyvalues,Weapons = weapons})
    tbNPCs[name] = {
        model = model,
        flags = flags
    }
end

AddNPC("Metropolice pack v5","Urban Camo","npc_metropolice","models/DPFilms/Metropolice/urban_police.mdl",{["manhacks"] = 0},0,{"weapon_smg1","weapon_pistol"})
AddNPC("Metropolice pack v5","Zombie Police","npc_zombie","models/DPFilms/Metropolice/zombie_police.mdl",{["manhacks"] = 0},0,{"weapon_smg1","weapon_pistol"},FNPC_UPDATE_RAGDOLL)