AddCSLuaFile()

if SERVER then
    include("sv_commands.lua")
    include("sh_commands.lua")
    SWEP.Weight = 5
    SWEP.AutoSwitchTo = false
    SWEP.AutoSwitchFrom = false
end

if CLIENT then
    SWEP.DrawAmmo           = true
    SWEP.DrawCrosshair      = false
    SWEP.ViewModelFOV       = 82
    SWEP.ViewModelFlip      = false
    SWEP.CSMuzzleFlashes    = true

    -- This is the font that's used to draw the death icons
    surface.CreateFont("CSKillIcons", {
        size = ScreenScale(30),
        weight = 500,
        antialias = true,
        shadow = true,
        font = "csd"
    })
    surface.CreateFont("CSSelectIcons", {
        size = ScreenScale(60),
        weight = 500,
        antialias = true,
        shadow = true,
        font = "csd"
    })
end

SWEP.Base = "weapon_base"

SWEP.Author = "DarkRP Developers"
SWEP.Contact = ""
SWEP.Purpose = ""
SWEP.Instructions = ""

SWEP.Spawnable = false
SWEP.AdminOnly = false
SWEP.UseHands = true

SWEP.HoldType = "normal"
SWEP.LoweredHoldType = "normal"

SWEP.Primary.Sound = Sound("Weapon_AK47.Single")
SWEP.Primary.Recoil = 1.5
SWEP.Primary.Damage = 40
SWEP.Primary.NumShots = 1
SWEP.Primary.Cone = 0.02
SWEP.Primary.Delay = 0.15

SWEP.Primary.ClipSize = -1
SWEP.Primary.DefaultClip = -1
SWEP.Primary.Automatic = false
SWEP.Primary.Ammo = "none"

SWEP.Secondary.ClipSize = -1
SWEP.Secondary.DefaultClip = -1
SWEP.Secondary.Automatic = false
SWEP.Secondary.Ammo = "none"

SWEP.MultiMode = false

SWEP.DarkRPBased = true

function SWEP:SetIronsights(b)
    if (b ~= self:GetIronsights()) then
        self:SetIronsightsPredicted(b)
        self:SetIronsightsTime(CurTime())
        if GAMEMODE.Config.ironshoot then
            self:SetHoldType(b and self.HoldType or self.LoweredHoldType)
        end
        if CLIENT then
            self:CalcViewModel()
        end
    end
end

function SWEP:GetIronsights()
    return self:GetIronsightsPredicted()
end

--- Dummy functions that will be replaced when SetupDataTables runs. These are
--- here for when that does not happen (due to e.g. stacking base classes)
function SWEP:GetIronsightsTime() return -1 end
function SWEP:SetIronsightsTime() end
function SWEP:GetIronsightsPredicted() return false end
function SWEP:SetIronsightsPredicted() end

function SWEP:SetupDataTables()
    self:NetworkVar("Bool", 0, "IronsightsPredicted")
    self:NetworkVar("Float", 0, "IronsightsTime")
    self:NetworkVar("Bool", 1, "Reloading")
    self:NetworkVar("Float", 1, "LastPrimaryAttack")
    self:NetworkVar("Float", 2, "ReloadEndTime")
    self:NetworkVar("Float", 3, "BurstTime")
    self:NetworkVar("Int", 0, "BurstBulletNum")
    self:NetworkVar("Int", 1, "TotalUsedMagCount")
    self:NetworkVar("String", 0, "FireMode")
    self:NetworkVar("Entity", 0, "LastOwner")
end

function SWEP:Initialize()
    if CLIENT and IsValid(self:GetOwner()) then
        local vm = self:GetOwner():GetViewModel()
        self:ResetDarkRPBones(vm)
    end

    self:SetHoldType(GAMEMODE.Config.ironshoot and self.LoweredHoldType or self.HoldType)
    if SERVER then
        self:SetNPCMinBurst(30)
        self:SetNPCMaxBurst(30)
        self:SetNPCFireRate(0.01)
    end

    self:SetFireMode(self.Primary.Automatic and "auto" or "semi")
end

function SWEP:Deploy()
    self:SetHoldType(GAMEMODE.Config.ironshoot and self.LoweredHoldType or self.HoldType)
    self:SetIronsights(false)
    self:SetReloading(false)
    self:SetReloadEndTime(0)
    self:SetBurstTime(0)
    self:SetBurstBulletNum(0)

    return true
end

function SWEP:Holster()
    self:SetIronsights(false)
    self:SetReloading(false)
    self:SetReloadEndTime(0)
    self:SetBurstTime(0)
    self:SetBurstBulletNum(0)

    if CLIENT then self.hasShot = false end

    if not IsValid(self:GetOwner()) then return true end
    if CLIENT then
        local vm = self:GetOwner():GetViewModel()
        self:ResetDarkRPBones(vm)
    end

    return true
end

function SWEP:OnRemove()
    if CLIENT and IsValid(self:GetOwner()) then
        local vm = self:GetOwner():GetViewModel()
        self:ResetDarkRPBones(vm)
    end
end

function SWEP:OwnerChanged()
    if IsValid(self:GetOwner()) then self:SetLastOwner(self:GetOwner()) end
end

function SWEP:PrimaryAttack()
    self.Primary.Automatic = self:GetFireMode() == "auto"

    if self:GetBurstBulletNum() > 0 and CurTime() < self:GetBurstTime() then return end

    local Owner = self:GetOwner()

    if not IsValid(Owner) then return end

    if self.MultiMode and Owner:KeyDown(IN_USE) then
        if self:GetFireMode() == "semi" then
            self:SetFireMode("burst")
            self.Primary.Automatic = false
            Owner:PrintMessage(HUD_PRINTCENTER, DarkRP.getPhrase("switched_burst"))
        elseif self:GetFireMode() == "burst" then
            self:SetFireMode("auto")
            self.Primary.Automatic = true
            Owner:PrintMessage(HUD_PRINTCENTER, DarkRP.getPhrase("switched_fully_auto"))
        elseif self:GetFireMode() == "auto" then
            self:SetFireMode("semi")
            self.Primary.Automatic = false
            Owner:PrintMessage(HUD_PRINTCENTER, DarkRP.getPhrase("switched_semi_auto"))
        end
        self:SetNextPrimaryFire(CurTime() + 0.5)
        self:SetNextSecondaryFire(CurTime() + 0.5)
        return
    end

    if self:GetFireMode() ~= "burst" then
        self:SetNextPrimaryFire(CurTime() + self.Primary.Delay)
    end

    self:SetNextSecondaryFire(CurTime() + self.Primary.Delay)

    if self:Clip1() <= 0 then
        self:EmitSound("weapons/clipempty_rifle.wav")
        self:SetNextPrimaryFire(CurTime() + 2)
        return
    end

    if not self:CanPrimaryAttack() then self:SetIronsights(false) return end
    if not self:GetIronsights() and GAMEMODE.Config.ironshoot then return end
    -- Play shoot sound
    self:EmitSound(self.Primary.Sound)

    -- Shoot the bullet
    self:CSShootBullet(self.Primary.Damage, self.Primary.Recoil + 3, self.Primary.NumShots, self.Primary.Cone + .05)

    if self:GetFireMode() == "burst" then
        self:SetBurstBulletNum(self:GetBurstBulletNum() + 1)
        if self:GetBurstBulletNum() == 3 then
            self:SetBurstTime(0)
            self:SetBurstBulletNum(0)
        else
            self:SetBurstTime(CurTime() + 0.1)
        end
    end

    -- Remove 1 bullet from our clip
    self:TakePrimaryAmmo(1)

    self:SetLastPrimaryAttack(CurTime())

    if Owner:IsNPC() then return end

    -- Punch the player's view
    Owner:ViewPunch(Angle(util.SharedRandom("DarkRP_CSBase" .. self:EntIndex() .. "Mag" .. self:GetTotalUsedMagCount() .. "p" .. self:Clip1(), -1.2, -1.1) * self.Primary.Recoil, util.SharedRandom("DarkRP_CSBase" .. self:EntIndex() .. "Mag" .. self:GetTotalUsedMagCount() .. "y" .. self:Clip1(), -1.1, 1.1) * self.Primary.Recoil, 0))
end

function SWEP:CSShootBullet(dmg, recoil, numbul, cone)
     local Owner = self:GetOwner()

    if not IsValid(Owner) then return end

    numbul = numbul or 1
    cone = cone or 0.01

    local bullet = {}
    bullet.Num = numbul or 1
    bullet.Src = Owner:GetShootPos()   -- Source
    bullet.Dir = (Owner:GetAimVector():Angle() + Owner:GetViewPunchAngles()):Forward() -- Dir of bullet
    bullet.Spread = Vector(cone, cone, 0)        -- Aim Cone
    bullet.Tracer = 4                            -- Show a tracer on every x bullets
    bullet.Force = 5                             -- Amount of force to give to phys objects
    bullet.Damage = dmg

    Owner:FireBullets(bullet)
    self:SendWeaponAnim(ACT_VM_PRIMARYATTACK)    -- View model animation
    Owner:MuzzleFlash()                -- Crappy muzzle light
    Owner:SetAnimation(PLAYER_ATTACK1) -- 3rd Person Animation

    if Owner:IsNPC() then return end

    -- Part of workaround, different viewmodel position if shots have been fired
    if CLIENT then self.hasShot = true end
end

local host_timescale = GetConVar("host_timescale")
local IRONSIGHT_TIME = 0.25
function SWEP:GetViewModelPosition(pos, ang)
    if (not self.IronSightsPos) then return pos, ang end

    pos = pos + ang:Forward() * -5

    if (self.bIron == nil) then return pos, ang end

    local bIron = self.bIron
    local time = self.fCurrentTime + (SysTime() - self.fCurrentSysTime) * game.GetTimeScale() * host_timescale:GetFloat()

    if bIron then
        self.SwayScale = 0.3
        self.BobScale = 0.1
    else
        self.SwayScale = 1.0
        self.BobScale = 1.0
    end

    if GAMEMODE.Config.ironshoot then
        ang:RotateAroundAxis(ang:Right(), -15)
    end

    local fIronTime = self.fIronTime
    if (not bIron) and fIronTime < time - IRONSIGHT_TIME then
        return pos, ang
    end

    local mul = 1.0

    if fIronTime > time - IRONSIGHT_TIME then
        mul = math.Clamp((time - fIronTime) / IRONSIGHT_TIME, 0, 1)

        if not bIron then mul = 1 - mul end
    end

    local offset = self.IronSightsPos

    if self.IronSightsAng then
        ang = ang * 1
        ang:RotateAroundAxis(ang:Right(), self.IronSightsAng.x * mul)
        ang:RotateAroundAxis(ang:Up(), self.IronSightsAng.y * mul)
        ang:RotateAroundAxis(ang:Forward(), self.IronSightsAng.z * mul)
    end

    if GAMEMODE.Config.ironshoot then
        ang:RotateAroundAxis(ang:Right(), mul * 15)
    else
        ang:RotateAroundAxis(ang:Right(), mul)
    end

    pos = pos + offset.x * ang:Right() * mul
    pos = pos + offset.y * ang:Forward() * mul
    pos = pos + offset.z * ang:Up() * mul

    if not self.hasShot then
        if self.IronSightsAngAfterShootingAdjustment then
            ang:RotateAroundAxis(ang:Right(), self.IronSightsAngAfterShootingAdjustment.x * mul)
            ang:RotateAroundAxis(ang:Up(), self.IronSightsAngAfterShootingAdjustment.y * mul)
            ang:RotateAroundAxis(ang:Forward(), self.IronSightsAngAfterShootingAdjustment.z * mul)
        end

        if self.IronSightsPosAfterShootingAdjustment then
            offset = self.IronSightsPosAfterShootingAdjustment
            local right = ang:Right()
            local up = ang:Up()
            local forward = ang:Forward()

            pos = pos + offset.x * right * mul
            pos = pos + offset.y * forward * mul
            pos = pos + offset.z * up * mul
        end
    end

    return pos, ang
end

function SWEP:SecondaryAttack()
    if not self.IronSightsPos then return end

    if self:GetReloading() then return end

    self:SetIronsights(not self:GetIronsights())

    self:SetNextSecondaryFire(CurTime() + 0.3)
end

--[[---------------------------------------------------------
Reload does nothing
---------------------------------------------------------]]
function SWEP:Reload()
    if not self:DefaultReload(ACT_VM_RELOAD) then return end
    self:SetReloading(true)
    self:SetIronsights(false)
    self:SetBurstTime(0)
    self:SetBurstBulletNum(0)
    self:GetOwner():SetAnimation(PLAYER_RELOAD)
    self:SetReloadEndTime(CurTime() + 2)
    self:SetTotalUsedMagCount(self:GetTotalUsedMagCount() + 1)
end

function SWEP:OnRestore()
    self:SetNextSecondaryFire(0)
    self:SetIronsights(false)
end

function SWEP:Equip(NewOwner)
    if self.PrimaryClipLeft and self.SecondaryClipLeft and self.PrimaryAmmoLeft and self.SecondaryAmmoLeft then
        NewOwner:SetAmmo(self.PrimaryAmmoLeft, self:GetPrimaryAmmoType())
        NewOwner:SetAmmo(self.SecondaryAmmoLeft, self:GetSecondaryAmmoType())

        self:SetClip1(self.PrimaryClipLeft)
        self:SetClip2(self.SecondaryClipLeft)
    end
end

function SWEP:OnDrop()
    self.PrimaryClipLeft = self:Clip1()
    self.SecondaryClipLeft = self:Clip2()

    if not IsValid(self:GetLastOwner()) then return end
    self.PrimaryAmmoLeft = self:GetLastOwner():GetAmmoCount(self:GetPrimaryAmmoType())
    self.SecondaryAmmoLeft = self:GetLastOwner():GetAmmoCount(self:GetSecondaryAmmoType())
    self:SetCollisionGroup(COLLISION_GROUP_INTERACTIVE_DEBRIS)
end

function SWEP:CalcViewModel()
    if (not CLIENT) or (not IsFirstTimePredicted()) then return end
    self.bIron = self:GetIronsights()
    self.fIronTime = self:GetIronsightsTime()
    self.fCurrentTime = CurTime()
    self.fCurrentSysTime = SysTime()
end

-- Note that if you override Think in your SWEP, you should call
-- BaseClass.Think(self) so as not to break ironsights
function SWEP:Think()
    self:CalcViewModel()
    if self.Primary.ClipSize ~= -1 and not self:GetReloading() and not self:GetIronsights() and self:GetLastPrimaryAttack() + 1 < CurTime() and self:GetHoldType() == self.HoldType and GAMEMODE.Config.ironshoot then
        self:SetHoldType(self.LoweredHoldType)
    end
    if self:GetReloadEndTime() ~= 0 and CurTime() >= self:GetReloadEndTime() then
        self:SetReloadEndTime(0)
        self:SetReloading(false)
        if GAMEMODE.Config.ironshoot then
            self:SetHoldType(self.LoweredHoldType)
        end
        if CLIENT then self.hasShot = false end
    end
    if self:GetBurstTime() ~= 0 and CurTime() >= self:GetBurstTime() then
        self:PrimaryAttack()
    end
end

function SWEP:DrawWeaponSelection(x, y, wide, tall, alpha)
    if self.IconLetter and string.find(self.IconLetter, "^[0-9a-wA-Z]$") then
        draw.DrawNonParsedSimpleText(self.IconLetter, "CSSelectIcons", x + wide / 2, y + tall * 0.2, Color(255, 210, 0, 255), TEXT_ALIGN_CENTER)

        -- try to fool them into thinking they're playing a Tony Hawks game
        draw.DrawNonParsedSimpleText(self.IconLetter, "CSSelectIcons", x + wide / 2 + math.Rand(-4, 4), y + tall * 0.2 + math.Rand(-14, 14), Color(255, 210, 0, math.Rand(10, 120)), TEXT_ALIGN_CENTER)
        draw.DrawNonParsedSimpleText(self.IconLetter, "CSSelectIcons", x + wide / 2 + math.Rand(-4, 4), y + tall * 0.2 + math.Rand(-9, 9), Color(255, 210, 0, math.Rand(10, 120)), TEXT_ALIGN_CENTER)
    else
        -- Set us up the texture
        surface.SetDrawColor(255, 255, 255, alpha)
        surface.SetTexture(self.WepSelectIcon)

        -- Lets get a sin wave to make it bounce
        local fsin = 0

        if self.BounceWeaponIcon then
            fsin = math.sin(CurTime() * 10) * 5
        end

        -- Borders
        y = y + 10
        x = x + 10
        wide = wide - 20

        -- Draw that motherfucker
        surface.DrawTexturedRect(x + fsin, y - fsin, wide - fsin * 2, (wide / 2) + fsin)

        -- Draw weapon info box
        self:PrintWeaponInfo(x + wide + 20, y + tall * 0.95, alpha)
    end
end

if CLIENT then
    function SWEP:ViewModelDrawn(vm)
        if self.DarkRPViewModelBoneManipulations and not self:GetReloading() then
            self:UpdateDarkRPBones(vm, self.DarkRPViewModelBoneManipulations)
        else
            self:ResetDarkRPBones(vm)
        end
    end

    function SWEP:UpdateDarkRPBones(vm, manipulations)
        if not IsValid(vm) or not vm:GetBoneCount() then return end

        -- Fill in missing bone names. Things fuck up when we workaround the scale bug and bones are missing.
        local bones = {}
        for i = 0, vm:GetBoneCount() - 1 do
            local bonename = vm:GetBoneName(i)
            if manipulations[bonename] then
                bones[bonename] = manipulations[bonename]
            else
                bones[bonename] = {
                    scale = Vector(1,1,1),
                    pos = Vector(0,0,0),
                    angle = Angle(0,0,0)
                }
            end
        end

        for k, v in pairs(bones) do
            local bone = vm:LookupBone(k)
            if not bone then continue end

            -- Bone scaling seems to be buggy. Workaround.
            local scale = Vector(v.scale.x, v.scale.y, v.scale.z)
            local ms = Vector(1,1,1)
            local cur = vm:GetBoneParent(bone)
            while cur >= 0 do
                local pscale = bones[vm:GetBoneName(cur)].scale
                ms = ms * pscale
                cur = vm:GetBoneParent(cur)
            end
            scale = scale * ms

            if vm:GetManipulateBoneScale(bone) ~= scale then
                vm:ManipulateBoneScale(bone, scale)
            end
            if vm:GetManipulateBonePosition(bone) ~= v.pos then
                vm:ManipulateBonePosition(bone, v.pos)
            end
            if vm:GetManipulateBoneAngles(bone) ~= v.angle then
                vm:ManipulateBoneAngles(bone, v.angle)
            end
        end
    end

    function SWEP:ResetDarkRPBones(vm)
        if not IsValid(vm) or not vm:GetBoneCount() then return end
        for i = 0, vm:GetBoneCount() - 1 do
            vm:ManipulateBoneScale(i, Vector(1, 1, 1))
            vm:ManipulateBoneAngles(i, Angle(0, 0, 0))
            vm:ManipulateBonePosition(i, Vector(0, 0, 0))
        end
    end
end

hook.Add("SetupMove", "DarkRP_WeaponSpeed", function(ply, mv)
    local wep = ply:GetActiveWeapon()
    if not wep:IsValid() or not wep.DarkRPBased or not wep.GetIronsights or not wep:GetIronsights() then return end

    mv:SetMaxClientSpeed(mv:GetMaxClientSpeed() / 3)
end)