discordembed.lua

gistfile1.txt

DiscordEmbed = {}
DiscordEmbed.__index = DiscordEmbed
EmbedType = {}

local function joinTables(t1, t2)
    for i = 1, #t2 do
        t1[#t1 + 1] = t2[i]
    end
    return t1
end

function EmbedType.Footer(text, icon_url, proxy_icon_url)
    assert(text and text:len() > 0, "Text need be a string and length > 0")
    return {
        text = text,
        icon_url = icon_url or nil,
        proxy_icon_url = proxy_icon_url or nil
    }
end

function EmbedType.Field(name, value, inline)
    return {
        name = name,
        value = value,
        inline = inline or false
    }
end

function EmbedType.Author(name, url, icon_url, proxy_url)
    assert(name and name:len() > 0, "Name is required.")
    return {
        name = name,
        url = url,
        icon_url = icon_url,
        proxy_icon_url = proxy_url
    }
end

function EmbedType.Provider(name, url)
    return {
        name = name,
        url = url
    }
end

function EmbedType.Thumbnail(url, proxy_url, height, width)
    return {
        url = url,
        proxy_url = proxy_url,
        height = height,
        width = width
    }
end

function EmbedType.Video(url, proxy_url, height, width)
    return {
        url = url,
        proxy_url = proxy_url,
        height = height,
        width = width
    }
end

function EmbedType.Image(url, proxy_url, height, width)
    return {
        url = url,
        proxy_url = proxy_url,
        height = height,
        width = width
    }
end

function DiscordEmbed:New()

    local obj = {
        title = nil,
        description = nil,
        url = nil,
        timestamp = nil,
        color = nil,
        footer = nil,
        image = nil,
        thumbnail = nil,
        video = nil,
        provider = nil,
        author = nil,
        fields = nil
    }

    setmetatable(obj, self)
    return obj
end

---comment
---@param fields EmbedType.Field | EmbedType.Field[]
---@return DiscordEmbed
function DiscordEmbed:addFields(fields)
    if not self.fields then
        self.fields = {}
    end
    local is_array = #fields > 0
    if is_array then
        self.fields = joinTables(self.fields, fields)
    else
        self.fields[#self.fields + 1] = fields
    end
    return self
end

---Set the Author of Embed
---@param author EmbedType.Author
---@return DiscordEmbed
function DiscordEmbed:setAuthor(author)
    self.author = author
    return self
end

---Set the color
---@param color integer
---@return DiscordEmbed
function DiscordEmbed:setColor(color)
    self.color = color
    return self
end

---Set the description
---@param description string
---@return DiscordEmbed
function DiscordEmbed:setDescription(description)
    self.description = description
    return self
end

---Set the fields
---@param fields EmbedType.Field[]
---@return DiscordEmbed
function DiscordEmbed:setFields(fields)
    self.fields = fields
    return self
end

---Set the footer
---@param footer EmbedType.Footer
---@return DiscordEmbed
function DiscordEmbed:setFooter(footer)
    self.footer = footer
    return self
end

---set the image
---@param image EmbedType.Image
---@return DiscordEmbed
function DiscordEmbed:setImage(image)
    self.image = image
    return self
end

---Set the thumbnail
---@param image EmbedType.Thumbnail
---@return DiscordEmbed
function DiscordEmbed:setThumbnail(thumbnail)
    self.thumbnail = thumbnail
    return self
end

---Set the timestamp can be a number or ISO 8601 string
---@return DiscordEmbed
function DiscordEmbed:setTimestamp(timestamp)
    if not timestamp then
        self.timestamp = os.date("!%Y-%m-%dT%XZ")
    elseif type(timestamp) == "number" then
        self.timestamp = os.date("!%Y-%m-%dT%XZ", timestamp)
    elseif type(timestamp) == "string" then
        self.timestamp = timestamp
    end

    return self
end

---Set the title
---@param title string
---@return DiscordEmbed
function DiscordEmbed:setTitle(title)
    self.title = title
    return self
end

---set the url
---@param url string
---@return DiscordEmbed
function DiscordEmbed:setURL(url)
    self.url = url
    return self
end

---@return string 
function DiscordEmbed:toJSON()
    return json.encode(self)
end