local cmp = require("cmp")
local compare = cmp.config.compare
local luasnip = require("luasnip")

local kind_icons = {
	Text = "",
	Method = "",
	Function = "",
	Constructor = "",
	Field = "",
	Variable = "",
	Class = "ﴯ",
	Interface = "",
	Module = "",
	Property = "ﰠ",
	Unit = "",
	Value = "",
	Enum = "",
	Keyword = "",
	Snippet = "",
	Color = "",
	File = "",
	Reference = "",
	Folder = "",
	EnumMember = "",
	Constant = "",
	Struct = "",
	Event = "",
	Operator = "",
	TypeParameter = "",
}

-- Load Snippets
require("luasnip.loaders.from_vscode").load()

cmp.setup({
	formatting = {
		format = function(entry, vim_item)
			-- Kind icons
			vim_item.kind = string.format("%s %s", kind_icons[vim_item.kind], vim_item.kind) -- This concatonates the icons with the name of the item kind
			-- Source
			vim_item.menu = ({
				fuzzy_buffer = "[Buffer]",
				nvim_lsp = "[Lsp]",
				luasnip = "[LuaSnip]",
				nvim_lua = "[Lua]",
				path = "[Path]",
				calc = "[Calculator]",
				neorg = "[Neorg]",
				emoji = "[Emoji]",
				zsh = "[Zsh]",
				crates = "[Crates]",
				cmdline_history = "[Cmd History]",
				rg = "[Ripgrep]",
				npm = "[Npm],",
			})[entry.source.name]
			return vim_item
		end,
	},
	window = {
		documentation = {
			border = { "╭", "─", "╮", "│", "╯", "─", "╰", "│" },
		},
	},
	experimental = {
		ghost_text = true,
		native_menu = false,
	},
	snippet = {
		-- REQUIRED - you must specify a snippet engine
		expand = function(args)
			require("luasnip").lsp_expand(args.body) -- For `luasnip` users.
		end,
	},
	mapping = {
		["<C-b>"] = cmp.mapping(cmp.mapping.scroll_docs(-4), { "i", "c" }),
		["<C-f>"] = cmp.mapping(cmp.mapping.scroll_docs(4), { "i", "c" }),
		["<C-Space>"] = cmp.mapping(cmp.mapping.complete(), { "i", "c" }),
		["<C-y>"] = cmp.config.disable, -- Specify `cmp.config.disable` if you want to remove the default `<C-y>` mapping.
		["<C-e>"] = cmp.mapping({
			i = cmp.mapping.abort(),
			c = cmp.mapping.close(),
		}),
		["<CR>"] = cmp.mapping.confirm({ select = false }), -- Accept currently selected item. Set `select` to `false` to only confirm explicitly selected items.
		["<C-Tab>"] = cmp.mapping(function(fallback)
			if luasnip.jumpable() then
				luasnip.jump(1)
			elseif luasnip.expand_or_jumpable() then
				luasnip.expand_or_jump()
			else
				fallback()
			end
		end, { "i", "s" }),
		["<C-S-Tab>"] = cmp.mapping(function(fallback)
			if luasnip.jumpable(-1) then
				luasnip.jump(-1)
			else
				fallback()
			end
		end, { "i", "s" }),
		["<Tab>"] = cmp.mapping(function(fallback)
			if cmp.visible() then
				cmp.select_next_item()
			else
				fallback()
			end
		end, { "i", "s" }),
		["<S-Tab>"] = cmp.mapping(function(fallback)
			if cmp.visible() then
				cmp.select_prev_item()
			elseif luasnip.jumpable(-1) then
				luasnip.jump(-1)
			else
				fallback()
			end
		end, { "i", "s" }),
	},
	sources = cmp.config.sources({
		{ name = "nvim_lsp" },
		{ name = "nvim_lua" },
		{ name = "path" },
		{ name = "emoji" },
		{ name = "neorg" },
		{ name = "luasnip" }, -- For luasnip users.
		{ name = "calc" },
		{ name = "zsh" },
		{ name = "fuzzy_buffer" },
		{ name = "rg" },
		{ name = "npm", keyword_length = 2 },
		{
			name = "dictionary",
			keyword_length = 2,
		},
	}),
	sorting = {
		priority_weight = 2,
		comparators = {
            compare.score,
            compare.recently_used,
            compare.exact,
			require("cmp_fuzzy_buffer.compare"),
			compare.offset,
            compare.kind,
			compare.sort_text,
			compare.length,
			compare.order,
		},
	},
})

-- Git Commit Completions
cmp.setup.filetype("gitcommit", {
	sources = cmp.config.sources({
        { name = "conventionalcommits" },
		{ name = "buffer" },
	}),
})

cmp.setup.filetype("toml", {
	sources = cmp.config.sources({
		{ name = "crates" },
	}),
})

-- Use buffer source for `/` (if you enabled `native_menu`, this won't work anymore).
cmp.setup.cmdline("/", {
	mapping = cmp.mapping.preset.cmdline(),
	sources = cmp.config.sources({
		-- { name = "buffer" },
		{ name = "fuzzy_buffer" },
		{ name = "cmdline_history" },
	}),
})

cmp.setup.cmdline("?", {
	mapping = cmp.mapping.preset.cmdline(),
	sources = cmp.config.sources({
		{ name = "fuzzy_buffer" },
		{ name = "cmdline_history" },
	}),
})

cmp.setup.cmdline("@", {
	mapping = cmp.mapping.preset.cmdline(),
	sources = cmp.config.sources({
		{ name = "fuzzy_buffer" },
		{ name = "cmdline_history" },
	}),
})

-- Use cmdline & path source for ':' (if you enabled `native_menu`, this won't work anymore).
cmp.setup.cmdline(":", {
	mapping = cmp.mapping.preset.cmdline(),
	sources = cmp.config.sources({
		{ name = "path" },
		{ name = "cmdline" },
		{ name = "cmdline_history" },
	}),
})