Database.lua

local _, ns = ...

local CURRENT_SCHEMA_VERSION = 3
local POSITION_LIMIT = 10000
local MINIMUM_DISPLAY_TIME_MIN = 2
local MINIMUM_DISPLAY_TIME_MAX = 20
local MAXIMUM_VISIBLE_TOOLTIPS_MIN = 1
local MAXIMUM_VISIBLE_TOOLTIPS_MAX = 8
local PARTY_DEBUFF_MAX_PER_MEMBER_MIN = 1
local PARTY_DEBUFF_MAX_PER_MEMBER_MAX = 3
local PARTY_DEBUFF_SCALE_MIN = 75
local PARTY_DEBUFF_SCALE_MAX = 125

local defaults = {
    schemaVersion = CURRENT_SCHEMA_VERSION,
    enabled = true,
    trackTarget = true,
    trackFocus = true,
    trackBosses = true,
    trackNameplates = true,
    minimumDisplayTime = 20,
    maximumVisibleTooltips = 5,
    showTargetAbilities = true,
    showPartyDebuffs = true,
    partyDebuffMaxPerMember = 2,
    partyDebuffScale = 90,
    position = {
        x = 300,
        y = 120,
    },
    partyDebuffPosition = {
        x = -330,
        y = 90,
    },
}

ns.Defaults = defaults

local function IsFiniteNumber(value)
    return type(value) == "number" and value == value and value ~= math.huge and value ~= -math.huge
end

local function ClampInteger(value, fallback, minimum, maximum)
    if not IsFiniteNumber(value) then
        return fallback
    end

    return Clamp(math.floor(value + 0.5), minimum, maximum)
end

local function ClampPosition(value, fallback)
    if not IsFiniteNumber(value) then
        return fallback
    end

    return Clamp(value, -POSITION_LIMIT, POSITION_LIMIT)
end

local function ValidateBoolean(db, key)
    if type(db[key]) ~= "boolean" then
        db[key] = defaults[key]
    end
end

function ns.InitializeDatabase()
    local db = SpellTipsDB
    if type(db) ~= "table" and type(AbilityTooltipDB) == "table" then
        db = AbilityTooltipDB
    end
    if type(db) ~= "table" then
        db = {}
    end

    SpellTipsDB = db
    AbilityTooltipDB = nil

    if not IsFiniteNumber(db.schemaVersion) then
        db.schemaVersion = 0
    end

    ValidateBoolean(db, "enabled")
    ValidateBoolean(db, "trackTarget")
    ValidateBoolean(db, "trackFocus")
    ValidateBoolean(db, "trackBosses")
    ValidateBoolean(db, "trackNameplates")
    ValidateBoolean(db, "showTargetAbilities")
    ValidateBoolean(db, "showPartyDebuffs")

    db.minimumDisplayTime = ClampInteger(
        db.minimumDisplayTime,
        defaults.minimumDisplayTime,
        MINIMUM_DISPLAY_TIME_MIN,
        MINIMUM_DISPLAY_TIME_MAX
    )
    db.maximumVisibleTooltips = ClampInteger(
        db.maximumVisibleTooltips,
        defaults.maximumVisibleTooltips,
        MAXIMUM_VISIBLE_TOOLTIPS_MIN,
        MAXIMUM_VISIBLE_TOOLTIPS_MAX
    )
    db.partyDebuffMaxPerMember = ClampInteger(
        db.partyDebuffMaxPerMember,
        defaults.partyDebuffMaxPerMember,
        PARTY_DEBUFF_MAX_PER_MEMBER_MIN,
        PARTY_DEBUFF_MAX_PER_MEMBER_MAX
    )
    db.partyDebuffScale = ClampInteger(
        db.partyDebuffScale,
        defaults.partyDebuffScale,
        PARTY_DEBUFF_SCALE_MIN,
        PARTY_DEBUFF_SCALE_MAX
    )

    if type(db.position) ~= "table" then
        db.position = {}
    end

    db.position.x = ClampPosition(db.position.x, defaults.position.x)
    db.position.y = ClampPosition(db.position.y, defaults.position.y)

    if type(db.partyDebuffPosition) ~= "table" then
        db.partyDebuffPosition = {}
    end

    db.partyDebuffPosition.x = ClampPosition(
        db.partyDebuffPosition.x,
        defaults.partyDebuffPosition.x
    )
    db.partyDebuffPosition.y = ClampPosition(
        db.partyDebuffPosition.y,
        defaults.partyDebuffPosition.y
    )

    if db.schemaVersion < CURRENT_SCHEMA_VERSION then
        db.schemaVersion = CURRENT_SCHEMA_VERSION
    end

    ns.db = db
end

function ns.GetDatabase()
    return ns.db
end

function ns.SetSavedPosition(x, y)
    local db = ns.GetDatabase()
    db.position.x = ClampPosition(x, defaults.position.x)
    db.position.y = ClampPosition(y, defaults.position.y)
end

function ns.ResetSavedPosition()
    ns.SetSavedPosition(defaults.position.x, defaults.position.y)

    if ns.ApplyAnchorPosition then
        ns.ApplyAnchorPosition()
    end
end

function ns.SetPartyDebuffSavedPosition(x, y)
    local db = ns.GetDatabase()
    db.partyDebuffPosition.x = ClampPosition(x, defaults.partyDebuffPosition.x)
    db.partyDebuffPosition.y = ClampPosition(y, defaults.partyDebuffPosition.y)
end

function ns.ResetPartyDebuffSavedPosition()
    ns.SetPartyDebuffSavedPosition(
        defaults.partyDebuffPosition.x,
        defaults.partyDebuffPosition.y
    )

    if ns.ApplyPartyDebuffAnchorPosition then
        ns.ApplyPartyDebuffAnchorPosition()
    end
end