feat: offer to show all results on one page (if < 10000)

Implements: https://todo.sr.ht/~alanpearce/searchix/5

4 files changed, 19 insertions, 16 deletions

diff --git a/internal/components/data.go b/internal/components/data.go
index aecd44c..862429e 100644
--- a/internal/components/data.go
+++ b/internal/components/data.go
@@ -25,4 +25,5 @@ type ResultData struct {
 	Results *search.Result
 	Prev    string
 	Next    string
+	All     string
 }
diff --git a/internal/components/results.templ b/internal/components/results.templ
index 226b71e..fee211c 100644
--- a/internal/components/results.templ
+++ b/internal/components/results.templ
@@ -1,9 +1,9 @@
 package components
 
 import (
-	"strconv"
-	"go.alanpearce.eu/searchix/internal/nix"
 	"go.alanpearce.eu/searchix/internal/config"
+	"go.alanpearce.eu/searchix/internal/nix"
+	"strconv"
 )
 
 func convertMatch[I nix.Importable](m nix.Importable) *I {
@@ -37,6 +37,9 @@ templ Results(r ResultData) {
 					}
 				</nav>
 				<span role="status">{ strconv.FormatUint(r.Results.Total, 10) } results</span>
+				if r.Next != r.Prev && r.Results.Total < config.MaxResultsShowAll {
+					<a href={ templ.SafeURL(r.All) }>Show All</a>
+				}
 			</footer>
 		} else {
 			<span role="status">Nothing found</span>
diff --git a/internal/config/config.go b/internal/config/config.go
index 33ce1da..b2af53c 100644
--- a/internal/config/config.go
+++ b/internal/config/config.go
@@ -14,6 +14,8 @@ import (
 var Version string
 var DevMode bool
 
+const MaxResultsShowAll = 10_000
+
 type URL struct {
 	*url.URL
 }
diff --git a/internal/server/mux.go b/internal/server/mux.go
index 80c68cb..83fde10 100644
--- a/internal/server/mux.go
+++ b/internal/server/mux.go
@@ -110,11 +110,15 @@ func NewMux(
 				var pageNumber = 1
 				if pg := r.URL.Query().Get("page"); pg != "" {
 					pageNumber, err = strconv.Atoi(pg)
-					if err != nil || pageNumber <= 0 || pageNumber > math.MaxInt {
+					if err != nil || pageNumber > math.MaxInt {
 						errorHandler(w, r, "Bad query string", http.StatusBadRequest)
 
 						return
 					}
+					if pageNumber == 0 {
+						pageNumber = 1
+						pageSize = math.MaxInt
+					}
 				}
 				page := pagination.New(pageNumber, pageSize)
 				results, err := index.Search(ctx, source, qs, page.From, page.Size)
@@ -129,6 +133,9 @@ func NewMux(
 
 					return
 				}
+				if pageSize == math.MaxInt && results.Total > config.MaxResultsShowAll {
+					errorHandler(w, r, "Too many results, use pagination", http.StatusBadRequest)
+				}
 
 				tdata := components.ResultData{
 					TemplateData: components.TemplateData{
@@ -143,19 +150,6 @@ func NewMux(
 				}
 
 				page.SetResults(results.Total)
-				log.Debug(
-					"pag",
-					"needed",
-					page.Needed,
-					"current",
-					page.Current,
-					"total",
-					results.Total,
-					"next",
-					page.Next,
-					"prev",
-					page.Prev,
-				)
 				if page.Needed {
 					q, err := url.ParseQuery(r.URL.RawQuery)
 					if err != nil {
@@ -177,6 +171,9 @@ func NewMux(
 						}
 						tdata.Prev = "search?" + q.Encode()
 					}
+
+					q.Set("page", "0")
+					tdata.All = "search?" + q.Encode()
 				}
 
 				w.Header().Add("Cache-Control", "max-age=300")