---@param kind 'issue'|'pr'
---@param state 'all'|'open'|'closed'
local function gh_picker(kind, state)
  if vim.fn.executable "gh" ~= 1 then
    vim.notify("gh CLI not found", vim.log.levels.WARN)
    return
  end
  local next_state = ({ all = "open", open = "closed", closed = "all" })[state]
  local label = kind == "pr" and "PRs" or "Issues"
  require("fzf-lua").fzf_exec(("gh %s list --limit 100 --state %s"):format(kind, state), {
    prompt = ("%s (%s)> "):format(label, state),
    header = ":: <c-o> to toggle all/open/closed",
    actions = {
      ["default"] = function(selected)
        local num = selected[1]:match "^#?(%d+)"
        if num then vim.system { "gh", kind, "view", num, "--web" } end
      end,
      ["ctrl-o"] = function() gh_picker(kind, next_state) end,
    },
  })
end

return {
  "ibhagwan/fzf-lua",
  dependencies = { "nvim-tree/nvim-web-devicons" },
  config = function(_, opts)
    local fzf = require "fzf-lua"
    fzf.setup(opts)

    local ok, fzf_reload = pcall(require, "config.fzf_reload")
    if ok then
      fzf_reload.setup(opts)
      fzf_reload.reload()
    end

    map("n", "<C-f>", function()
      local git_dir = vim.fn.system("git rev-parse --git-dir 2>/dev/null"):gsub("\n", "")
      if vim.v.shell_error == 0 and git_dir ~= "" then
        fzf.git_files()
      else
        fzf.files()
      end
    end)
    map("n", "<leader>ff", "<cmd>FzfLua files<cr>")
    map("n", "<leader>fg", "<cmd>FzfLua live_grep<cr>")
    map("n", "<leader>fb", "<cmd>FzfLua buffers<cr>")
    map("n", "<leader>fh", "<cmd>FzfLua help_tags<cr>")
    map("n", "<leader>fr", "<cmd>FzfLua resume<cr>")
    map("n", "<leader>fo", "<cmd>FzfLua oldfiles<cr>")
    map("n", "<leader>fc", "<cmd>FzfLua commands<cr>")
    map("n", "<leader>fk", "<cmd>FzfLua keymaps<cr>")
    map("n", "<leader>f/", "<cmd>FzfLua search_history<cr>")
    map("n", "<leader>f:", "<cmd>FzfLua command_history<cr>")
    map("n", "<leader>fe", "<cmd>FzfLua files cwd=~/.config<cr>")
    map("n", "gq", "<cmd>FzfLua quickfix<cr>")
    map("n", "gl", "<cmd>FzfLua loclist<cr>")
    map("n", "<leader>GB", "<cmd>FzfLua git_branches<cr>")
    map("n", "<leader>Gc", "<cmd>FzfLua git_commits<cr>")
    map("n", "<leader>Gs", "<cmd>FzfLua git_status<cr>")
    map("n", "<leader>Gp", function() gh_picker("pr", "open") end)
    map("n", "<leader>Gi", function() gh_picker("issue", "open") end)
  end,
  opts = {
    "default-title",
    winopts = {
      border = "single",
      preview = {
        layout = "vertical",
        vertical = "down:50%",
      },
    },
    fzf_opts = {
      ["--layout"] = "reverse",
    },
  },
}