package service

import (
	"htwkalender/model"
	"htwkalender/service/events"
	"htwkalender/service/fetch"
	"htwkalender/service/ical"
	"htwkalender/service/room"
	"io"
	"net/http"

	"github.com/labstack/echo/v5"
	"github.com/pocketbase/pocketbase"
	"github.com/pocketbase/pocketbase/apis"
	"github.com/pocketbase/pocketbase/core"
)

func AddRoutes(app *pocketbase.PocketBase) {

	app.OnBeforeServe().Add(func(e *core.ServeEvent) error {
		_, err := e.Router.AddRoute(echo.Route{
			Method: http.MethodGet,
			Path:   "/api/fetchPlans",
			Handler: func(c echo.Context) error {
				return fetch.GetSeminarEvents(c, app)
			},
			Middlewares: []echo.MiddlewareFunc{
				apis.ActivityLogger(app),
			},
		})
		if err != nil {
			return err
		}
		return nil
	})

	app.OnBeforeServe().Add(func(e *core.ServeEvent) error {
		_, err := e.Router.AddRoute(echo.Route{
			Method: http.MethodDelete,
			Path:   "/api/modules",
			Handler: func(c echo.Context) error {
				return events.DeleteAllEvents(app)
			},
			Middlewares: []echo.MiddlewareFunc{
				apis.ActivityLogger(app),
				apis.RequireAdminAuth(),
			},
		})
		if err != nil {
			return err
		}
		return nil
	})

	app.OnBeforeServe().Add(func(e *core.ServeEvent) error {
		_, err := e.Router.AddRoute(echo.Route{
			Method: http.MethodGet,
			Path:   "/api/fetchGroups",
			Handler: func(c echo.Context) error {
				return fetch.SeminarGroups(c, app)
			},
			Middlewares: []echo.MiddlewareFunc{
				apis.ActivityLogger(app),
			},
		})
		if err != nil {
			return err
		}
		return nil
	})

	app.OnBeforeServe().Add(func(e *core.ServeEvent) error {
		_, err := e.Router.AddRoute(echo.Route{
			Method: http.MethodGet,
			Path:   "/api/rooms",
			Handler: func(c echo.Context) error {
				return room.GetRooms(c, app)
			},
			Middlewares: []echo.MiddlewareFunc{
				apis.ActivityLogger(app),
			},
		})
		if err != nil {
			return err
		}
		return nil
	})

	// API Endpoint to get all events for a specific room on a specific day
	app.OnBeforeServe().Add(func(e *core.ServeEvent) error {
		_, err := e.Router.AddRoute(echo.Route{
			Method: http.MethodGet,
			Path:   "/api/schedule/day",
			Handler: func(c echo.Context) error {
				roomParam := c.QueryParam("room")
				date := c.QueryParam("date")
				return room.GetRoomScheduleForDay(c, app, roomParam, date)
			},
			Middlewares: []echo.MiddlewareFunc{
				apis.ActivityLogger(app),
			},
		})
		if err != nil {
			return err
		}
		return nil
	})

	// API Endpoint to create a new iCal feed
	app.OnBeforeServe().Add(func(e *core.ServeEvent) error {
		_, err := e.Router.AddRoute(echo.Route{
			Method: http.MethodGet,
			Path:   "/api/schedule",
			Handler: func(c echo.Context) error {
				roomParam := c.QueryParam("room")
				to := c.QueryParam("to")
				from := c.QueryParam("from")
				return room.GetRoomSchedule(c, app, roomParam, from, to)
			},
			Middlewares: []echo.MiddlewareFunc{
				apis.ActivityLogger(app),
			},
		})
		if err != nil {
			return err
		}
		return nil
	})

	app.OnBeforeServe().Add(func(e *core.ServeEvent) error {
		_, err := e.Router.AddRoute(echo.Route{
			Method: http.MethodPost,
			Path:   "/api/createFeed",
			Handler: func(c echo.Context) error {
				requestBody, _ := io.ReadAll(c.Request().Body)
				result, err := ical.CreateIndividualFeed(requestBody, app)
				if err != nil {
					return c.JSON(http.StatusInternalServerError, err)
				}
				return c.JSON(http.StatusOK, result)

			},
			Middlewares: []echo.MiddlewareFunc{
				apis.ActivityLogger(app),
			},
		})
		if err != nil {
			return err
		}
		return nil
	})

	app.OnBeforeServe().Add(func(e *core.ServeEvent) error {
		_, err := e.Router.AddRoute(echo.Route{
			Method: http.MethodGet,
			Path:   "/api/feed",
			Handler: func(c echo.Context) error {
				token := c.QueryParam("token")
				return ical.Feed(c, app, token)
			},
			Middlewares: []echo.MiddlewareFunc{
				apis.ActivityLogger(app),
			},
		})
		if err != nil {
			return err
		}
		return nil
	})

	app.OnBeforeServe().Add(func(e *core.ServeEvent) error {
		_, err := e.Router.AddRoute(echo.Route{
			Method: http.MethodGet,
			Path:   "/api/course/modules",
			Handler: func(c echo.Context) error {
				course := c.QueryParam("course")
				semester := c.QueryParam("semester")
				modules, err := events.GetModulesForCourseDistinct(app, course, semester)

				if err != nil {
					return c.JSON(400, err)
				} else {
					return c.JSON(200, modules)
				}
			},
			Middlewares: []echo.MiddlewareFunc{
				apis.ActivityLogger(app),
			},
		})
		if err != nil {
			return err
		}
		return nil
	})

	app.OnBeforeServe().Add(func(e *core.ServeEvent) error {
		_, err := e.Router.AddRoute(echo.Route{
			Method: http.MethodGet,
			Path:   "/api/modules",
			Handler: func(c echo.Context) error {
				return events.GetAllModulesDistinct(app, c)
			},
			Middlewares: []echo.MiddlewareFunc{
				apis.ActivityLogger(app),
			},
		})
		if err != nil {
			return err
		}
		return nil
	})

	app.OnBeforeServe().Add(func(e *core.ServeEvent) error {
		_, err := e.Router.AddRoute(echo.Route{
			Method: http.MethodPost,
			Path:   "/api/module",
			Handler: func(c echo.Context) error {

				var requestModule model.Module

				if err := c.Bind(&requestModule); err != nil {
					return apis.NewBadRequestError("Failed to read request body", err)
				}

				module, err := events.GetModuleByName(app, requestModule)

				if err != nil {
					return c.JSON(400, err)
				} else {
					return c.JSON(200, module)
				}
			},
			Middlewares: []echo.MiddlewareFunc{
				apis.ActivityLogger(app),
			},
		})
		if err != nil {
			return err
		}
		return nil
	})

	app.OnBeforeServe().Add(func(e *core.ServeEvent) error {
		_, err := e.Router.AddRoute(echo.Route{
			Method: http.MethodGet,
			Path:   "/api/courses",
			Handler: func(c echo.Context) error {
				courses := events.GetAllCourses(app)
				return c.JSON(200, courses)
			},
			Middlewares: []echo.MiddlewareFunc{
				apis.ActivityLogger(app),
			},
		})
		if err != nil {
			return err
		}
		return nil
	})

	app.OnBeforeServe().Add(func(e *core.ServeEvent) error {
		_, err := e.Router.AddRoute(echo.Route{
			Method: http.MethodDelete,
			Path:   "/api/events",
			Handler: func(c echo.Context) error {
				course := c.QueryParam("course")
				semester := c.QueryParam("semester")
				err := events.DeleteAllEventsByCourseAndSemester(app, course, semester)
				if err != nil {
					return c.JSON(400, err)
				} else {
					return c.JSON(200, "Events deleted")
				}
			},
			Middlewares: []echo.MiddlewareFunc{
				apis.ActivityLogger(app),
				apis.RequireAdminAuth(),
			},
		})
		if err != nil {
			return err
		}
		return nil
	})

	app.OnBeforeServe().Add(func(e *core.ServeEvent) error {
		_, err := e.Router.AddRoute(echo.Route{
			Method: http.MethodGet,
			Path:   "/api/feed/migrate",
			Handler: func(c echo.Context) error {
				err := ical.MigrateFeedJson(app)

				if err != nil {
					return c.JSON(500, err)
				} else {
					return c.JSON(200, "Migrated")
				}
			},
			Middlewares: []echo.MiddlewareFunc{
				apis.ActivityLogger(app),
				apis.RequireAdminAuth(),
			},
		})
		if err != nil {
			return err
		}
		return nil
	})
}