local addonname, shared = ...
---@cast addonname string

local function GetOrDefault(table, keys, default)
    local value = default
    if not table then return value end
    if not keys then return value end

    local traverse = table
    for i = 1, #keys do
        local key = keys[i]
        if traverse[key] ~= nil then
            traverse = traverse[key]
        else
            break
        end

        if i == #keys then
            value = traverse
        end
    end
    return value
end

local function GetChannelId(channelName)
    local channels = { GetChannelList() }
    for i = 1, #channels, 2 do
        local id = channels[i]
        local name = channels[i + 1]
        if name == channelName then
            return id
        end
    end
end

---@class YapperConfig
---@field message string
---@field interval number
---@field channel string
---@field channelData any
---@field enabled boolean
if not YapperConfig then YapperConfig = {} end

---@cast shared { config: YapperConfig}

shared.config = {
    message = GetOrDefault(YapperConfig, { "message" }, ""),
    interval = GetOrDefault(YapperConfig, { "interval" }, 1),
    channel = GetOrDefault(YapperConfig, { "channel" }, "SAY"),
    channelData = GetOrDefault(YapperConfig, { "channelData" }, nil),
    enabled = GetOrDefault(YapperConfig, { "enabled" }, false),
}
local timer = nil

local function Yap()
    if not shared.config.enabled then return end
    if not shared.config.message then
        print(string.format("Yapper found no message to yap (%s)", tostring(shared.config.message)))
        return
    end
    if not shared.config.channel then
        print(string.format("Yapper found no channel to yap in (%s)", tostring(shared.config.channel)))
        return
    end

    SendChatMessage(shared.config.message, shared.config.channel, nil, shared.config.channelData)

    if not shared.config.interval or shared.config.interval <= 0 then
        print("Yapper has no interval set, quitting (%s)", tostring(shared.config.interval))
        return
    end
    timer = C_Timer.NewTimer(shared.config.interval, Yap)
end

local function init()
    if not shared.config.enabled then return end
    if timer and not timer:IsCancelled() then timer:Cancel() end
    Yap()
end

local loadedFrame = CreateFrame("Frame")
loadedFrame:RegisterEvent("ADDON_LOADED")
loadedFrame:SetScript("OnEvent", function(self, event, addonName)
    if addonName == addonname then
        init()
    end
end)

local logoutFrame = CreateFrame("Frame")
logoutFrame:RegisterEvent("PLAYER_LOGOUT")
logoutFrame:SetScript("OnEvent", function(self, event)
    shared.config.enabled = false
end)

SlashCmdList["YAPPER_MAIN_CMD"] = function(input)
    if input == "" or input == nil then
        shared.config.enabled = not shared.config.enabled
        print(string.format("Yapper is now %s", shared.config.enabled and "enabled" or "disabled"))
        init()
        return
    end

    if tonumber(input) then
        shared.config.interval = tonumber(input)
        print(string.format("Yapper interval set to %d", shared.config.interval))
        init()
        return
    end

    shared.config.message = input
    print(string.format("Yapper message set to %s", shared.config.message))
    init()
end
SLASH_YAPPER_MAIN_CMD1 = "/yap"

SlashCmdList["YAPPER_CHANNEL_CMD"] = function(input)
    if input == "" or input == nil then
        shared.config.channel = nil
        shared.config.channelData = nil
        print("Yapper channel set to nil")
        return
    end

    local data = { strsplit(" ", input) }
    if #data == 1 then
        shared.config.channel = data[1]
        shared.config.channelData = nil
        print(string.format("Yapper channel set to %s", shared.config.channel))
        return
    end
    shared.config.channel = data[1]
    shared.config.channelData = data[2]
    print(string.format("Yapper channel set to %s with data %s", shared.config.channel, shared.config.channelData))
end
SLASH_YAPPER_CHANNEL_CMD1 = "/yapc"