mirror of https://gitlab.com/ngerakines/tavern.git
85 lines
2.0 KiB
Go
85 lines
2.0 KiB
Go
package web
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import (
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"fmt"
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"math"
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"net/http"
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"github.com/gin-gonic/gin"
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"github.com/ngerakines/tavern/storage"
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)
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func (h handler) getTaggedObjects(c *gin.Context) {
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if !requireAccept(c, "application/ld+json") {
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h.writeJSONError(c, http.StatusNotAcceptable, fmt.Errorf("client does not indicate that they accept application/jrd+json responses"))
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return
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}
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ctx := c.Request.Context()
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tag := c.Param("tag")
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page := intParam(c, "page", 0)
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limit := 50
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total, err := h.storage.CountObjectPayloadsInTagFeed(ctx, tag)
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if err != nil {
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h.internalServerErrorJSON(c, err)
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return
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}
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lastPage := 1
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if total > limit {
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lastPage = int(math.Ceil(float64(total) / float64(limit)))
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}
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response := storage.EmptyPayload()
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if page == 0 {
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response["@context"] = "https://www.w3.org/ns/activitystreams"
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response["id"] = fmt.Sprintf("https://%s/tags/%s", h.domain, tag)
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response["type"] = "OrderedCollection"
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response["totalItems"] = total
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if total > 0 {
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response["first"] = fmt.Sprintf("https://%s/tags/%s?page=1", h.domain, tag)
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response["last"] = fmt.Sprintf("https://%s/tags/%s?page=%d", h.domain, tag, lastPage)
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}
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h.writeJSONLD(c, http.StatusOK, response)
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return
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}
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response["id"] = fmt.Sprintf("https://%s/tags/%s?page=%d", h.domain, tag, page)
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response["type"] = "OrderedCollectionPage"
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response["totalItems"] = total
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response["partOf"] = fmt.Sprintf("https://%s/tags/%s", h.domain, tag)
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if total == 0 || page > lastPage {
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response["orderedItems"] = []interface{}{}
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h.writeJSONLD(c, http.StatusOK, response)
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return
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}
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objects, err := h.storage.ListObjectPayloadsInTagFeed(ctx, tag /*, limit, (page-1)*limit */)
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if err != nil {
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h.internalServerErrorJSON(c, err)
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return
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}
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if len(objects) > 0 {
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response["orderedItems"] = objects
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}
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if page > 1 {
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response["prev"] = fmt.Sprintf("https://%s/tags/%s?page=%d", h.domain, tag, page-1)
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}
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if page < lastPage {
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response["next"] = fmt.Sprintf("https://%s/tags/%s?page=%d", h.domain, tag, page+1)
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}
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h.writeJSONLD(c, http.StatusOK, response)
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}
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