114 lines
2.6 KiB
Go
114 lines
2.6 KiB
Go
package controllers
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import (
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"context"
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"fmt"
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"history-api/internal/dtos/response"
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"history-api/internal/services"
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"strconv"
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"time"
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"github.com/gofiber/fiber/v3"
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)
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type TileController struct {
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service services.TileService
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}
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func NewTileController(svc services.TileService) *TileController {
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return &TileController{service: svc}
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}
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// GetMetadata godoc
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// @Summary Get tile metadata
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// @Description Retrieve map metadata
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// @Tags Tile
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// @Accept json
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// @Produce json
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// @Success 200 {object} response.CommonResponse
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// @Failure 500 {object} response.CommonResponse
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// @Router /tiles/metadata [get]
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func (h *TileController) GetMetadata(c fiber.Ctx) error {
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ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
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defer cancel()
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res, err := h.service.GetMetadata(ctx)
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if err != nil {
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return c.Status(fiber.StatusInternalServerError).JSON(response.CommonResponse{
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Status: false,
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Message: err.Error(),
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})
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}
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return c.Status(fiber.StatusOK).JSON(response.CommonResponse{
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Status: true,
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Data: res,
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})
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}
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// GetTile godoc
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// @Summary Get a map tile
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// @Description Fetch vector or raster map tile data by Z, X, Y coordinates
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// @Tags Tile
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// @Produce application/octet-stream
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// @Param z path int true "Zoom level (0-22)"
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// @Param x path int true "X coordinate"
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// @Param y path int true "Y coordinate"
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// @Success 200 {file} byte
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// @Failure 400 {object} response.CommonResponse
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// @Failure 500 {object} response.CommonResponse
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// @Router /tiles/{z}/{x}/{y} [get]
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func (h *TileController) GetTile(c fiber.Ctx) error {
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ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
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defer cancel()
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z, x, y, err := h.parseTileParams(c)
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if err != nil {
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return c.Status(fiber.StatusBadRequest).JSON(response.CommonResponse{
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Status: false,
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Message: err.Error(),
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})
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}
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data, headers, err := h.service.GetTile(ctx, z, x, y)
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if err != nil {
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return c.Status(fiber.StatusInternalServerError).JSON(response.CommonResponse{
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Status: false,
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Message: err.Error(),
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})
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}
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for k, v := range headers {
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c.Set(k, v)
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}
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return c.Status(fiber.StatusOK).Send(data)
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}
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func (h *TileController) parseTileParams(c fiber.Ctx) (int, int, int, error) {
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z, err := strconv.Atoi(c.Params("z"))
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if err != nil {
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return 0, 0, 0, fmt.Errorf("invalid z")
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}
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x, err := strconv.Atoi(c.Params("x"))
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if err != nil {
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return 0, 0, 0, fmt.Errorf("invalid x")
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}
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y, err := strconv.Atoi(c.Params("y"))
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if err != nil {
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return 0, 0, 0, fmt.Errorf("invalid y")
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}
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if z < 0 || x < 0 || y < 0 {
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return 0, 0, 0, fmt.Errorf("coordinates must be positive")
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}
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if z > 22 {
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return 0, 0, 0, fmt.Errorf("zoom level too large")
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}
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return z, x, y, nil
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}
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