local ADDON_NAME = "HailMaryGuildTools"
local HMGT = _G[ADDON_NAME]
if not HMGT then return end

local L = HMGT.L or LibStub("AceLocale-3.0"):GetLocale(ADDON_NAME)

HMGT.devToolsBuffer = HMGT.devToolsBuffer or {}
HMGT.devToolsBufferMax = HMGT.devToolsBufferMax or 300

local DEVTOOLS_SCOPE_ALL = "ALL"
local DEVTOOLS_SCOPE_LABELS = {
    System = "System",
    Version = "Version",
    Options = "Options",
    Comm = "Communication",
    Tracker = "Tracker",
    RaidTimeline = "Raid Timeline",
    Notes = "Notes",
}

local DEVTOOLS_LEVELS = {
    error = 1,
    trace = 2,
}

local function TrimText(value)
    return tostring(value or ""):gsub("^%s+", ""):gsub("%s+$", "")
end

local function SortKeys(tbl)
    local keys = {}
    for key in pairs(tbl or {}) do
        keys[#keys + 1] = key
    end
    table.sort(keys, function(a, b)
        return tostring(a) < tostring(b)
    end)
    return keys
end

local function EncodePayloadValue(value, depth)
    depth = tonumber(depth) or 0
    local valueType = type(value)
    if valueType == "nil" then
        return "nil"
    end
    if valueType == "string" then
        return value
    end
    if valueType == "number" or valueType == "boolean" then
        return tostring(value)
    end
    if valueType == "table" then
        if depth >= 1 then
            return "{...}"
        end
        local parts = {}
        for _, key in ipairs(SortKeys(value)) do
            parts[#parts + 1] = string.format("%s=%s", tostring(key), EncodePayloadValue(value[key], depth + 1))
        end
        return table.concat(parts, ", ")
    end
    return tostring(value)
end

function HMGT:GetDevToolsSettings()
    local profile = self.db and self.db.profile
    if not profile then
        return {
            enabled = false,
            level = "error",
            scope = DEVTOOLS_SCOPE_ALL,
            window = { width = 920, height = 420, minimized = false },
        }
    end
    profile.devTools = type(profile.devTools) == "table" and profile.devTools or {}
    local settings = profile.devTools
    settings.enabled = settings.enabled == true
    if settings.level ~= "error" and settings.level ~= "trace" then
        settings.level = "error"
    end
    if type(settings.scope) ~= "string" or settings.scope == "" then
        settings.scope = DEVTOOLS_SCOPE_ALL
    end
    settings.window = type(settings.window) == "table" and settings.window or {}
    settings.window.width = math.max(720, tonumber(settings.window.width) or 920)
    settings.window.height = math.max(260, tonumber(settings.window.height) or 420)
    settings.window.minimized = settings.window.minimized == true
    return settings
end

function HMGT:IsDevToolsEnabled()
    return self:GetDevToolsSettings().enabled == true
end

function HMGT:GetDevToolsLevelOptions()
    return {
        error = L["OPT_DEVTOOLS_LEVEL_ERROR"] or "Errors",
        trace = L["OPT_DEVTOOLS_LEVEL_TRACE"] or "Trace",
    }
end

function HMGT:GetConfiguredDevToolsLevel()
    return self:GetDevToolsSettings().level or "error"
end

function HMGT:ShouldIncludeDevToolsLevel(level)
    local configured = self:GetConfiguredDevToolsLevel()
    return (DEVTOOLS_LEVELS[tostring(level or "error")] or DEVTOOLS_LEVELS.error)
        <= (DEVTOOLS_LEVELS[configured] or DEVTOOLS_LEVELS.error)
end

function HMGT:GetDevToolsScopeOptions()
    local values = {
        [DEVTOOLS_SCOPE_ALL] = L["OPT_DEVTOOLS_SCOPE_ALL"] or "All scopes",
    }
    for scope, label in pairs(DEVTOOLS_SCOPE_LABELS) do
        values[scope] = label
    end
    for _, entry in ipairs(self.devToolsBuffer or {}) do
        local scope = TrimText(entry and entry.scope or "")
        if scope ~= "" and scope ~= DEVTOOLS_SCOPE_ALL then
            values[scope] = values[scope] or scope
        end
    end
    return values
end

function HMGT:FormatDevToolsEntry(entry)
    local stamp = tostring(entry and entry.stamp or date("%H:%M:%S"))
    local level = string.upper(tostring(entry and entry.level or "error"))
    local scope = tostring(entry and entry.scope or "System")
    local eventName = tostring(entry and entry.event or "")
    local payload = TrimText(entry and entry.payload or "")
    if payload ~= "" then
        return string.format("%s [%s][%s] %s | %s", stamp, level, scope, eventName, payload)
    end
    return string.format("%s [%s][%s] %s", stamp, level, scope, eventName)
end

function HMGT:GetFilteredDevToolsEntries()
    local filtered = {}
    local settings = self:GetDevToolsSettings()
    for _, entry in ipairs(self.devToolsBuffer or {}) do
        local scopeMatches = settings.scope == DEVTOOLS_SCOPE_ALL or settings.scope == tostring(entry.scope or "")
        if scopeMatches and self:ShouldIncludeDevToolsLevel(entry.level) then
            filtered[#filtered + 1] = entry
        end
    end
    return filtered
end

function HMGT:GetFilteredDevToolsLines()
    local lines = {}
    for _, entry in ipairs(self:GetFilteredDevToolsEntries()) do
        lines[#lines + 1] = self:FormatDevToolsEntry(entry)
    end
    return lines
end

function HMGT:RecordDevEvent(level, scope, eventName, payload)
    if not self:IsDevToolsEnabled() then
        return
    end

    local normalizedLevel = tostring(level or "error")
    if normalizedLevel ~= "error" and normalizedLevel ~= "trace" then
        normalizedLevel = "trace"
    end
    if not self:ShouldIncludeDevToolsLevel(normalizedLevel) then
        return
    end

    local normalizedScope = TrimText(scope or "System")
    if normalizedScope == "" then
        normalizedScope = "System"
    end

    local entry = {
        stamp = date("%H:%M:%S"),
        level = normalizedLevel,
        scope = normalizedScope,
        event = TrimText(eventName or "event"),
        payload = EncodePayloadValue(payload, 0),
    }

    table.insert(self.devToolsBuffer, entry)
    if #self.devToolsBuffer > (tonumber(self.devToolsBufferMax) or 300) then
        table.remove(self.devToolsBuffer, 1)
    end

    if self.devToolsWindow and self.devToolsWindow:IsShown() and self.RefreshDevToolsWindow then
        self:RefreshDevToolsWindow()
    end
end

function HMGT:DevError(scope, eventName, payload)
    self:RecordDevEvent("error", scope, eventName, payload)
end

function HMGT:DevTrace(scope, eventName, payload)
    self:RecordDevEvent("trace", scope, eventName, payload)
end

function HMGT:ClearDevToolsLog()
    wipe(self.devToolsBuffer)
    if self.devToolsWindow and self.devToolsWindow.editBox then
        self.devToolsWindow.editBox:SetText("")
        self.devToolsWindow.editBox:SetCursorPosition(0)
    end
end

function HMGT:DumpDevToolsLog(maxLines)
    if self:IsDevToolsEnabled() and self.OpenDevToolsWindow then
        self:OpenDevToolsWindow()
        return
    end

    local lines = tonumber(maxLines) or 40
    if lines < 1 then
        lines = 1
    end
    local startIndex = math.max(1, #self.devToolsBuffer - lines + 1)
    for i = startIndex, #self.devToolsBuffer do
        self:Print(self:FormatDevToolsEntry(self.devToolsBuffer[i]))
    end
end