package controllers

import (
	"strings"

	"github.com/Theodor-Springmann-Stiftung/kgpz_web/helpers/logging"
	"github.com/Theodor-Springmann-Stiftung/kgpz_web/viewmodels"
	"github.com/Theodor-Springmann-Stiftung/kgpz_web/xmlmodels"
	"github.com/gofiber/fiber/v2"
)

const (
	DEFAULT_AGENT = "a"
)

func GetAgents(kgpz *xmlmodels.Library) fiber.Handler {
	return func(c *fiber.Ctx) error {
		a := c.Params("letterorid", DEFAULT_AGENT)
		a = strings.ToLower(a)

		// Handle special "autoren" route
		if a == "autoren" {
			agents := viewmodels.AuthorsView(kgpz)
			if len(agents.Agents) == 0 {
				logging.Error(nil, "No authors found")
				return c.SendStatus(fiber.StatusNotFound)
			}
			return c.Render(
				"/autoren/",
				fiber.Map{"model": agents},
			)
		}

		// Handle special "anonym" route
		if a == "anonym" {
			anonymAgent := viewmodels.AnonymView(kgpz)
			return c.Render(
				"/akteure/",
				fiber.Map{"model": &viewmodels.AgentsListView{
					Search:           "anonym",
					AvailableLetters: []string{},
					Agents:          map[string]xmlmodels.Agent{"anonym": *anonymAgent},
					Sorted:          []string{"anonym"},
				}},
			)
		}

		// Handle normal letter/id lookup
		agents := viewmodels.AgentsView(a, kgpz)
		if len(agents.Agents) == 0 {
			logging.Error(nil, "No agents found for letter or id: "+a)
			return c.SendStatus(fiber.StatusNotFound)
		}
		return c.Render(
			"/akteure/",
			fiber.Map{"model": agents},
		)
	}
}