From f4399555b495d23e39e013dec6c03270da01efd0 Mon Sep 17 00:00:00 2001
From: Tigor Hutasuhut <tigor.hutasuhut@gmail.com>
Date: Fri, 3 May 2024 11:59:44 +0700
Subject: [PATCH] subreddit-add: added cron scheduler input

---
 server/routes/routes.go                       |  1 +
 server/routes/subreddit_check.go              |  2 +-
 server/routes/subreddit_validate_schedule.go  | 53 ++++++++++++
 views/subredditsview/addview/addview.templ    |  3 +
 .../addview/subreddit_schedule_input.templ    | 81 +++++++++++++++++++
 5 files changed, 139 insertions(+), 1 deletion(-)
 create mode 100644 server/routes/subreddit_validate_schedule.go
 create mode 100644 views/subredditsview/addview/subreddit_schedule_input.templ

diff --git a/server/routes/routes.go b/server/routes/routes.go
index 46d51ca..ac2bdef 100644
--- a/server/routes/routes.go
+++ b/server/routes/routes.go
@@ -60,6 +60,7 @@ func (routes *Routes) registerHTMXRoutes(router chi.Router) {
 
 	router.Post("/subreddits/start", routes.SubredditStartDownloadHTMX)
 	router.Post("/subreddits/check", routes.SubredditCheckHTMX)
+	router.Get("/subreddits/validate/schedule", routes.SubredditValidateScheduleHTMX)
 }
 
 func (routes *Routes) registerWWWRoutes(router chi.Router) {
diff --git a/server/routes/subreddit_check.go b/server/routes/subreddit_check.go
index a70d027..962e8c5 100644
--- a/server/routes/subreddit_check.go
+++ b/server/routes/subreddit_check.go
@@ -99,7 +99,7 @@ func (routes *Routes) SubredditCheckHTMX(rw http.ResponseWriter, r *http.Request
 	}
 
 	if exist {
-		rw.WriteHeader(http.StatusNotFound)
+		rw.WriteHeader(http.StatusConflict)
 		data.Error = "subreddit already registered"
 		if err := addview.SubredditInputForm(data).Render(r.Context(), rw); err != nil {
 			log.New(r.Context()).Err(err).Error("failed to render subreddit input form")
diff --git a/server/routes/subreddit_validate_schedule.go b/server/routes/subreddit_validate_schedule.go
new file mode 100644
index 0000000..7703658
--- /dev/null
+++ b/server/routes/subreddit_validate_schedule.go
@@ -0,0 +1,53 @@
+package routes
+
+import (
+	"fmt"
+	"net/http"
+	"strconv"
+	"time"
+
+	"github.com/tigorlazuardi/redmage/pkg/log"
+	"github.com/tigorlazuardi/redmage/views/subredditsview/addview"
+)
+
+func (routes *Routes) SubredditValidateScheduleHTMX(rw http.ResponseWriter, r *http.Request) {
+	ctx, span := tracer.Start(r.Context(), "*Routes.SubredditValidateScheduleHTMX")
+	defer span.End()
+
+	var data addview.ScheduleInputData
+
+	enabled, _ := strconv.Atoi(r.FormValue("enable_schedule"))
+	data.Disabled = enabled == 0
+	data.Value = r.FormValue("schedule")
+
+	if data.Value == "" {
+		if err := addview.ScheduleInput(data).Render(ctx, rw); err != nil {
+			log.New(ctx).Err(err).Error("failed to render schedule input")
+		}
+		return
+	}
+
+	if data.Disabled {
+		if err := addview.ScheduleInput(data).Render(ctx, rw); err != nil {
+			log.New(ctx).Err(err).Error("failed to render schedule input")
+		}
+		return
+	}
+
+	scheduler, err := cronParser.Parse(data.Value)
+	if err != nil {
+		data.Error = fmt.Sprintf("Invalid schedule format: %s", err.Error())
+		if err := addview.ScheduleInput(data).Render(ctx, rw); err != nil {
+			log.New(ctx).Err(err).Error("failed to render schedule input")
+		}
+		return
+	}
+
+	next := scheduler.Next(time.Now())
+
+	data.Valid = fmt.Sprintf("Schedule is valid. Next run at: %s", next.Format("Monday, _2 January 2006 15:04:05 MST"))
+
+	if err := addview.ScheduleInput(data).Render(ctx, rw); err != nil {
+		log.New(ctx).Err(err).Error("failed to render schedule input")
+	}
+}
diff --git a/views/subredditsview/addview/addview.templ b/views/subredditsview/addview/addview.templ
index f6f1d2c..dbcc63e 100644
--- a/views/subredditsview/addview/addview.templ
+++ b/views/subredditsview/addview/addview.templ
@@ -29,6 +29,9 @@ templ AddviewContent(c *views.Context) {
 				<label id="subreddit-type-input" class="form-control w-full">
 					@SubredditTypeInput(SubredditTypeData{})
 				</label>
+				<div class="flex gap-4 content-center">
+					@scheduleInputContainer()
+				</div>
 			</form>
 		}
 	</main>
diff --git a/views/subredditsview/addview/subreddit_schedule_input.templ b/views/subredditsview/addview/subreddit_schedule_input.templ
new file mode 100644
index 0000000..3f6cd7c
--- /dev/null
+++ b/views/subredditsview/addview/subreddit_schedule_input.templ
@@ -0,0 +1,81 @@
+package addview
+
+import "github.com/tigorlazuardi/redmage/views/utils"
+
+type ScheduleInputData struct {
+	Value    string
+	Error    string
+	Valid    string
+	Disabled bool
+}
+
+templ scheduleInputContainer() {
+	@ScheduleInput(ScheduleInputData{})
+	<script>
+        document.addEventListener('DOMContentLoaded', () => htmx.trigger('#schedule-input-group', 'change'))
+    </script>
+}
+
+templ ScheduleInput(data ScheduleInputData) {
+	<div
+		id="schedule-input-group"
+		class="form-control w-full my-auto"
+		hx-get="/htmx/subreddits/validate/schedule"
+		hx-trigger="change, input delay:1s"
+		hx-include="this"
+		hx-target="this"
+		hx-swap="outerHTML"
+	>
+		<label class="label">
+			<span
+				class={ utils.CX(map[string]bool{
+                        "label-text": true,
+                        "text-error": data.Error != "",
+                        "text-success": data.Valid != "",
+                        "text-base": true,
+                    }) }
+			>Schedule</span>
+			<div class="tooltip" data-tip="Whether to enable scheduler or not">
+				if data.Disabled {
+					<input type="checkbox" name="enable_schedule" value="1" class="toggle toggle-primary"/>
+				} else {
+					<input type="checkbox" name="enable_schedule" value="1" class="toggle toggle-primary" checked/>
+				}
+			</div>
+		</label>
+		if data.Disabled {
+			<input name="schedule" type="text" placeholder="e.g. '@daily' or '0 0 * * MON'" class="input input-bordered" disabled/>
+		} else {
+			<input
+				name="schedule"
+				type="text"
+				placeholder="e.g. '@daily' or '0 0 * * MON'"
+				value={ data.Value }
+				class={ utils.CX(map[string]bool{
+                    "input": true,
+                    "input-bordered": true,
+                    "input-error": data.Error != "",
+                    "text-error": data.Error != "",
+                    "input-success": data.Valid != "",
+                    "text-success": data.Valid != "",
+                }) }
+			/>
+		}
+		<div class="label">
+			<span
+				class={ utils.CX(map[string]bool{
+                            "label-text": true,
+                            "text-error": data.Error != "",
+                            "text-success": data.Valid != "",
+                            "min-h-[1rem]": true,
+                        }) }
+			>
+				if data.Valid != "" {
+					{ data.Valid }
+				} else {
+					{ data.Error }
+				}
+			</span>
+		</div>
+	</div>
+}