---@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" },
  cmd = "FzfLua",
  keys = {
    -- Main keybinds
    {
      "<C-f>",
      function()
        local fzf = require("fzf-lua")
        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,
      desc = "Find files",
    },

    -- Leader keybinds
    { "<leader>ff", function() require("fzf-lua").files() end, desc = "Files" },
    { "<leader>fg", function() require("fzf-lua").live_grep() end, desc = "Live grep" },
    { "<leader>fb", function() require("fzf-lua").buffers() end, desc = "Buffers" },
    { "<leader>fh", function() require("fzf-lua").help_tags() end, desc = "Help tags" },
    { "<leader>fr", function() require("fzf-lua").resume() end, desc = "Resume last search" },
    { "<leader>fo", function() require("fzf-lua").oldfiles() end, desc = "Recent files" },
    { "<leader>fc", function() require("fzf-lua").commands() end, desc = "Commands" },
    { "<leader>fk", function() require("fzf-lua").keymaps() end, desc = "Keymaps" },
    { "<leader>f/", function() require("fzf-lua").search_history() end, desc = "Search history" },
    { "<leader>f:", function() require("fzf-lua").command_history() end, desc = "Command history" },
    { "<leader>fe", function() require("fzf-lua").files({ cwd = "~/.config" }) end, desc = "Config files" },
    -- Quickfix/loclist
    { "gq", function() require("fzf-lua").quickfix() end, desc = "Quickfix" },
    { "gl", function() require("fzf-lua").loclist() end, desc = "Loclist" },
    -- Git
    { "<leader>GB", function() require("fzf-lua").git_branches() end, desc = "Git branches" },
    { "<leader>Gc", function() require("fzf-lua").git_commits() end, desc = "Git commits" },
    { "<leader>Gs", function() require("fzf-lua").git_status() end, desc = "Git status" },
    { "<leader>Gp", function() gh_picker("pr", "open") end, desc = "GitHub PRs" },
    { "<leader>Gi", function() gh_picker("issue", "open") end, desc = "GitHub issues" },
  },
  opts = {
    "default-title",
    winopts = {
      border = "single",
      preview = {
        layout = "vertical",
        vertical = "down:50%",
      },
    },
    fzf_opts = {
      ["--layout"] = "reverse",
    },
  },
}