-- read namespace from global env
local _G = _G
local Grichelde = _G.Grichelde

local nilOrEmpty, pairs, find, match, toString, toNumber
    = Grichelde.functions.nilOrEmpty, Grichelde.functions.pairs, Grichelde.functions.find, Grichelde.functions.match, Grichelde.functions.toString, Grichelde.functions.toNumber

function Grichelde:CreateOptionsUI()
    return {
        name = self:Format(self.L.Options_Title, self.L.AddonName),
        type = "group",
        childGroups = "tab",
        set = function(info, val) self:SyncToDatabase(info, val) end,
        get = function(info) return self:ReadFromDatabase(info) end,
        hidden = false,
        disabled = function(info) return self:IsDisabled(info) end,
        args = {
            enabled = {
                order = 0,
                type = "toggle",
                name = self.L.Options_Enabled_Name,
                desc = self:Format(self.L.Options_Enabled_Desc, self.L.AddonName),
                disabled = false,
            },

            channels = {
                order = 2,
                type = "group",
                name = self.L.Options_Channels_Group_Name,
                desc = self:Format(self.L.Options_Channels_Group_Desc, self.L.AddonName),
                args = {
                    header = {
                        order = 1,
                        type = "description",
                        name = self.L.Options_Channels_Header
                    },
                    spacer = {
                        order = 2,
                        type = "header",
                        name = ""
                    },
                    say = {
                        order = 10,
                        type = "toggle",
                        name = self.L.Options_Channel_Say_Name,
                        desc = self:Format(self.L.Options_Channel_Say_Desc, self.L.AddonName),
                    },
                    emote = {
                        order = 11,
                        type = "toggle",
                        name = self.L.Options_Channel_Emote_Name,
                        desc = self:Format(self.L.Options_Channel_Emote_Desc, self.L.AddonName),
                    },
                    yell = {
                        order = 12,
                        type = "toggle",
                        name = self.L.Options_Channel_Yell_Name,
                        desc = self:Format(self.L.Options_Channel_Yell_Desc, self.L.AddonName),
                    },
                    party = {
                        order = 13,
                        type = "toggle",
                        name = self.L.Options_Channel_Party_Name,
                        desc = self:Format(self.L.Options_Channel_Party_Desc, self.L.AddonName),
                    },
                    guild = {
                        order = 14,
                        type = "toggle",
                        name = self.L.Options_Channel_Guild_Name,
                        desc = self:Format(self.L.Options_Channel_Guild_Desc, self.L.AddonName),
                    },
                    officer = {
                        order = 15,
                        type = "toggle",
                        name = self.L.Options_Channel_Officer_Name,
                        desc = self:Format(self.L.Options_Channel_Officer_Desc, self.L.AddonName),
                    },
                    raid = {
                        order = 16,
                        type = "toggle",
                        name = self.L.Options_Channel_Raid_Name,
                        desc = self:Format(self.L.Options_Channel_Raid_Desc, self.L.AddonName),
                    },
                    raidWarning = {
                        order = 17,
                        type = "toggle",
                        name = self.L.Options_Channel_RaidWarning_Name,
                        desc = self:Format(self.L.Options_Channel_RaidWarning_Desc, self.L.AddonName),
                    },
                    instance = {
                        order = 18,
                        type = "toggle",
                        name = self.L.Options_Channel_Instance_Name,
                        desc = self:Format(self.L.Options_Channel_Instance_Desc, self.L.AddonName),
                    },
                    battleground = {
                        order = 19,
                        type = "toggle",
                        name = self.L.Options_Channel_Battleground_Name,
                        desc = self:Format(self.L.Options_Channel_Battleground_Desc, self.L.AddonName),
                    },
                    whisper = {
                        order = 20,
                        type = "toggle",
                        name = self.L.Options_Channel_Whisper_Name,
                        desc = self:Format(self.L.Options_Channel_Whisper_Desc, self.L.AddonName),
                    },
                }
            },

            replacements = {
                order = 3,
                type = "group",
                name = self.L.Options_Replacements_Group_Name,
                desc = self.L.Options_Replacements_Group_Desc,
                args = {
                    add = {
                        order = 0,
                        type = "execute",
                        confirm = false,
                        name = self.L.Options_Replacements_Add_Name,
                        desc = self.L.Options_Replacements_Add_Desc,
                        func = function(info) self:AddEmptyMapping(info) end
                    },
                    deleteAll = {
                        order = 1,
                        type = "execute",
                        confirm = true,
                        confirmText = self.L.Options_Replacements_DeleteAll_ConfirmText,
                        name = self.L.Options_Replacements_DeleteAll_Name,
                        desc = self.L.Options_Replacements_DeleteAll_Desc,
                        func = function(info) self:DeleteAllMappings(info) end
                    },
                    header = {
                        order = 3,
                        type = "description",
                        name = self.L.Options_Replacements_Header
                    },
                    spacer = {
                        order = 4,
                        type = "header",
                        name = ""
                    },
                }
            }
        }
    }
end

function Grichelde:CreateMapping(offset)
    return {
        order = offset or 9999,
        type = "group",
        name = function(info) return self:MappingName(info) end,
        desc = self.L.Options_Mapping_Group_Desc,
        childGroups = "tree",
        args = {
            searchText = {
                order = 0,
                type = "input",
                name = self.L.Options_Mapping_SearchText_Name,
                desc = self.L.Options_Mapping_SearchText_Desc,
            },
            replaceText = {
                order = 1,
                type = "input",
                name = self.L.Options_Mapping_ReplaceText_Name,
                desc = self.L.Options_Mapping_ReplaceText_Desc,
            },
            exactCase = {
                order = 2,
                type = "toggle",
                name = self.L.Options_Mapping_ExactCase_Name,
                desc = self.L.Options_Mapping_ExactCase_Desc,
                width = "full",
            },
            consolidate = {
                order = 3,
                type = "toggle",
                name = self.L.Options_Mapping_Consolidate_Name,
                desc = self.L.Options_Mapping_Consolidate_Desc,
                width = "full"
            },
            moveUp = {
                order = 10,
                type = "execute",
                name = self.L.Options_Mapping_MoveUp_Name,
                desc = self.L.Options_Mapping_MoveUp_Desc,
                width = 0.25,
                func = function(info) self:MoveUp(info) end
            },
            moveDown = {
                order = 11,
                type = "execute",
                name = self.L.Options_Mapping_MoveDown_Name,
                desc = self.L.Options_Mapping_MoveDown_Desc,
                width = 0.25,
                func = function(info) self:MoveDown(info) end
            },
            spacer = {
                order = 18,
                type = "description",
                name = "",
                width = 1,
            },
            delete = {
                order = 19,
                type = "execute",
                confirm = true,
                confirmText = self.L.Options_Mapping_Delete_ConfirmText,
                name = self.L.Options_Mapping_Delete_Name,
                desc = self.L.Options_Mapping_Delete_Desc,
                width = 0.5,
                func = function(info) self:DeleteMapping(info) end
            },
        }
    }
end

function Grichelde:SetupOptions()
    -- add DB-backed profiles to UI options
    local options = self:CreateOptionsUI()
    options.args.profiles = LibStub("AceDBOptions-3.0"):GetOptionsTable(self.db)
    options.args.profiles.disabled = false

    -- Adding options to blizzard frame
    LibStub("AceConfig-3.0"):RegisterOptionsTable(self.name, options)
    local dialog = LibStub("AceConfigDialog-3.0")
    dialog:AddToBlizOptions(self.name, self.L.AddonName)

    return options, dialog
end

function Grichelde:IsDisabled(info)
    if info.option.type == "group" then
        return false
    end
    return not self.db.profile.enabled
end

function Grichelde:MappingName(info)
--  self:TracePrint("MappingName : info")
--  self:TracePrint(info)
    local option = self.db.profile.replacements[info[2]]

    if nilOrEmpty(option.searchText) and nilOrEmpty(option.replaceText) then
        return self.L.Options_Mapping_EmptyMapping
    else
        return self:Format(self.L.Options_Mapping_Group_Name, option.searchText or "", option.replaceText or "")
    end
end

function Grichelde:RefreshOptions(event)
    self:DebugPrint("RefreshOptions : event:", event)
    if event == "OnNewProfile" then
        self:PrefixedPrint(self.L.Profiles_Created, self.COLOR_CODES.GREEN .. self.db:GetCurrentProfile() .. self.COLOR_CODES.CLOSE)
    elseif event == "OnProfileChanged" then
        self:PrefixedPrint(self.L.Profiles_Loaded, self.COLOR_CODES.GREEN .. self.db:GetCurrentProfile() .. self.COLOR_CODES.CLOSE)
    elseif event == "OnProfileDeleted" then
        self:PrefixedPrint(self.L.Profiles_Deleted, self.COLOR_CODES.GREEN .. self.db:GetCurrentProfile() .. self.COLOR_CODES.CLOSE)
    elseif event == "OnProfileCopied" then
        self:PrefixedPrint(self.L.Profiles_Copied, self.COLOR_CODES.GREEN .. self.db:GetCurrentProfile() .. self.COLOR_CODES.CLOSE)
    elseif event == "OnProfileReset" then
        self:PrefixedPrint(self.L.Profiles_Reset, self.COLOR_CODES.GREEN .. self.db:GetCurrentProfile() .. self.COLOR_CODES.CLOSE)
    else
        self:DebugPrint("Refreshing Profile %s on options change: %s", self.db:GetCurrentProfile(), event)
    end

    self:ReorderReplacements()
    self:RefreshReplacements(self.db.profile.replacements)
end

--- Create UI options for rhe given replacement table (from DB).
--- Usually called with with self.db.profile.replacements
-- @param replacementsTable
function Grichelde:RefreshReplacements(replacementsTable)
    self:TracePrint("RefreshReplacements : DB table:")
    self:TracePrint(replacementsTable)

    -- remove all previous replacements from options (not DB), except header and buttons
    local replacements = self.options.args.replacements.args or {}
    for k, _ in pairs(replacements) do
        if k and find(k, "^replacement_") then
            replacements[k] = nil
        end
    end

    for replName, _ in pairs(replacementsTable or {}) do
        local _, replNumber = self:SplitOnFirstMatch(replName, "_")
        replacements[replName] = self:CreateMapping(toNumber(replNumber))
    end

--  self:TracePrint("RefreshReplacements : UI options:")
--  self:TracePrint(replacements)

    self.dialog:ConfigTableChanged(nil, self.name)
end

function Grichelde:AddEmptyMapping()
    local replacements = self.db.profile.replacements or {}

    self:DebugPrint("AddEmptyMapping : old DB entries:")
    self:DebugPrint(replacements)

    local maxRepl = Grichelde.MAPPING_OFFSET
    for replName, _ in pairs(replacements) do
        local num = match(replName, "^replacement_(%d+)")
        if num and maxRepl < toNumber(num) then
            maxRepl = toNumber(num)
        end
    end

    local newMapping = "replacement_" .. toString(maxRepl + 1)
    self:DebugPrint("AddEmptyMapping : new mapping key:", newMapping)

    -- do NOT set self.db.profile.replacements = {} it will break defaults
    replacements[newMapping].order = toString(maxRepl + 1)    -- will be reordered anyway
    self:DebugPrint("AddEmptyMapping : new DB entries:")
    self:DebugPrint(replacements)

    self:RefreshOptions("AddEmptyMapping " .. newMapping)
    self.dialog:SelectGroup(self.name, "replacements", newMapping)
end

function Grichelde:MoveUp(info)
    self:TracePrint("MoveUp : info")
    for i = 0, #info do
        self:TracePrint("%d = %s", i, info[i])
    end

    local replacements = self.db.profile.replacements or {}
    local currentName = info[2]

    self:DebugPrint("MoveUp : \"%s\"", currentName)
    self:DebugPrint(replacements[currentName])

    local _, replNumber = self:SplitOnFirstMatch(currentName, "_")
    local currentOrder = toNumber(replNumber)

    -- if not on top
    if currentOrder ~= Grichelde.MAPPING_OFFSET then
        local swapName = "replacement_" .. toString(currentOrder - 1)

        -- swap ordering
        self:DebugPrint("swap with option %s", swapName)

        replacements[swapName].order = currentOrder
        replacements[currentName].order = currentOrder - 1

        self:RefreshOptions("MoveUp " .. currentName)

        self:DebugPrint("MoveUp : refresh focus on %s", swapName)
        self.dialog:SelectGroup(self.name, "replacements", swapName)
    else
        self:DebugPrint("MoveUp : already on top")
    end
end

function Grichelde:MoveDown(info)
    self:TracePrint("MoveDown : info")
    for i = 0, #info do
        self:TracePrint("%d = %s", i, info[i])
    end

    local replacements = self.db.profile.replacements or {}
    local currentName = info[2]

    self:DebugPrint("MoveDown : \"%s\"", currentName)
    self:DebugPrint(replacements[currentName])

    local _, replNumber = self:SplitOnFirstMatch(currentName, "_")
    local currentOrder = toNumber(replNumber)

    local maxRepl = Grichelde.MAPPING_OFFSET
    for replName, _ in pairs(replacements) do
        local num = match(replName, "^replacement_(%d+)")
        if num and maxRepl < toNumber(num) then
            maxRepl = toNumber(num)
        end
    end

    -- if not last element
    self:DebugPrint("MoveDown : maxRepl: %d", maxRepl)
    if currentOrder < maxRepl then
        local swapName = "replacement_" .. toString(currentOrder + 1)

        -- swap ordering
        self:DebugPrint("swap with option %s", swapName)

        replacements[swapName].order = currentOrder
        replacements[currentName].order = currentOrder + 1

        self:RefreshOptions("MoveDown " .. currentName)

        self:DebugPrint("MoveDown : refresh focus on %s", swapName)
        self.dialog:SelectGroup(self.name, "replacements", swapName)
    else
        self:DebugPrint("MoveDown : already at bottom")
    end
end

function Grichelde:DeleteMapping(info)
    self:TracePrint("DeleteMapping : info")
    for i = 0, #info do
        self:TracePrint("%d = %s", i, info[i])
    end

    local currentName = info[2]

    self:DebugPrint("delete option: %s", currentName)
    self.db.profile.replacements[currentName] = nil

    self:RefreshOptions("DeleteMapping " .. currentName)

    local _, replNumber = self:SplitOnFirstMatch(currentName, "_")
    local newMapping = "replacement_" .. toNumber(replNumber - 1)
    self.dialog:SelectGroup(self.name, "replacements", newMapping)
end

function Grichelde:DeleteAllMappings()
    self:DebugPrint("DeleteAllMappings")

    -- do NOT set self.db.profile.replacements = {} it will break defaults
    for replName, _ in pairs(self.db.profile.replacements or {}) do
        self.db.profile.replacements[replName] = nil
    end
    self:AddEmptyMapping()

    self:RefreshOptions("DeleteAllMappings")
end