local eta = require("eta")
local eta_clickup = require("eta.clickup")

vim.api.nvim_create_user_command("ETA", eta.select_task, { nargs = "?" })

---@type eta.clickup.Session
eta.clickup_session = {
  auth = os.getenv("CLICKUP_AUTH") or "",
  user = os.getenv("CLICKUP_USER_ID") or "",
  workspace = os.getenv("CLICKUP_WORKSPACE_ID") or "",
  base_url = "https://api.clickup.com/api/v2",
  default_reviewer = os.getenv("CLICKUP_DEFAULT_REVIEWER") or "",
}

---@type eta.gitlab.Session
eta.gitlab_session = {
  auth = os.getenv("GITLAB_AUTH") or "",
  base_url = "https://git.extoll.de/api/v4",
}

---@type eta.solidtime.Session
eta.solidtime_session = {
  auth = os.getenv("SOLIDTIME_AUTH") or "",
  org = os.getenv("SOLIDTIME_ORG") or "",
  base_url = os.getenv("SOLIDTIME_URL") or "",
  user = os.getenv("SOLIDTIME_USER") or "",
}

eta.ext = {
  ns = vim.api.nvim_create_namespace("eta"),
}
vim.api.nvim_set_hl(0, "EtaHlTagKey", { fg = "#a6adc8", bg = "bg", bold = true })
vim.api.nvim_set_hl(0, "EtaHlTagVal", { bg = "bg", fg = "#a6adc8" })

local special_val_hl_cases = {
  fail = "#f38ba8",
  failed = "#f38ba8",
  wontfix = "#f38ba8",
  error = "#f38ba8",
  err = "#f38ba8",
  problem = "#f38ba8",
  success = "#a6e3a1",
  succeeded = "#a6e3a1",
  ok = "#a6e3a1",
  running = "#f9e2af",
  in_progress = "#f9e2af",
  progress = "#f9e2af",
  warning = "#f9e2af",
  warn = "#f9e2af",
  in_review = "#94e2d5",
  review = "#94e2d5",
  selected = "#eba0ac",
  selected_for_development = "#eba0ac",
  backlog = "#7f849c",
}

local special_key_hl_cases = {
  project = "#fab387",
  mr = "#fab387",
  issue = "#fab387",
  task = "#b4befe",
  lib = "#89b4fa",
  library = "#89b4fa",
  cell = "#74c7ec",
  run = "#89dceb",
}

for special, special_hl in pairs(special_val_hl_cases) do
  vim.api.nvim_set_hl(0, "EtaHlTagVal" .. special, { bg = "bg", fg = special_hl })
  vim.api.nvim_set_hl(0, "EtaHlTagKey" .. special, { bg = "bg", fg = special_hl })
end
for special, special_hl in pairs(special_key_hl_cases) do
  vim.api.nvim_set_hl(0, "EtaHlTagVal" .. special, { bg = "bg", fg = special_hl })
  vim.api.nvim_set_hl(0, "EtaHlTagKey" .. special, { bg = "bg", fg = special_hl })
end

vim.api.nvim_create_autocmd({ "CursorHold" }, {
  callback = function(args)
    local eid = 1;
    for lix, line in ipairs(vim.api.nvim_buf_get_lines(args.buf, 0, -1, false)) do
      for match in line:gmatch("#[a-z0-9_-]+/%S+") do
        local offset, mend = line:find(match, 1, true)
        local start, colend = line:find("/%s*", offset)

        local val = line:sub(colend + 1 or 0, mend):gsub("%W", "_")
        local key = line:sub(offset + 1, start - 1):gsub("%W", "_")

        local vhl = "EtaHlTagVal"
        local khl = "EtaHlTagKey"

        for case, _ in pairs(special_key_hl_cases) do
          if case == key then
            vhl = vhl .. key
            khl = khl .. key
          end
        end

        for case, _ in pairs(special_val_hl_cases) do
          if case == val then
            vhl = vhl .. val
            khl = khl .. val
          end
        end


        vim.api.nvim_buf_set_extmark(args.buf, eta.ext.ns, lix - 1, colend or 0, {
          id = eid,
          end_row = lix - 1,
          end_col = mend,
          hl_group = { "EtaHlTagVal", vhl },
        })
        vim.api.nvim_buf_set_extmark(args.buf, eta.ext.ns, lix - 1, offset - 1, {
          id = eid + 1,
          end_row = lix - 1,
          end_col = colend - 1,
          hl_group = { "EtaHlTagKey", khl },
        })
        vim.api.nvim_buf_set_extmark(args.buf, eta.ext.ns, lix - 1, start - 1, {
          id = eid + 2,
          end_row = lix - 1,
          end_col = colend,
          conceal = " ",
          hl_group = { khl },
        })
        vim.api.nvim_buf_set_extmark(args.buf, eta.ext.ns, lix - 1, offset - 1, {
          id = eid + 3,
          end_row = lix - 1,
          end_col = offset,
          conceal = " ",
          hl_group = { khl },
        })
        vim.api.nvim_buf_set_extmark(args.buf, eta.ext.ns, lix - 1, mend or 0, {
          id = eid + 4,
          end_row = lix - 1,
          end_col = mend,
          conceal = "",
          hl_group = { khl },
          priority = 200,
        })

        for special_key, special_key_repl in pairs({
          mr = " ",
          issue = " ",
          task = "",
          created = "󰙴 ",
          closed = "󰸞 ",
          project = "󰏖 ",
          branch = "󰘬",
          lib = "󱍵 ",
          library = "󱍵 ",
          cell = "󰌕 ",
          run = "󰫍",
        }) do
          if key == special_key then
            vim.api.nvim_buf_set_extmark(args.buf, eta.ext.ns, lix - 1, offset, {
              id = eid + 5,
              end_row = lix - 1,
              end_col = start,
              conceal = special_key_repl,
              hl_group = { khl },
              priority = 200,
            })
          end
        end
        eid = eid + 6
      end
    end
  end
})