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|
import json
import net.http
import os
import time
import term.ui as tui
struct App {
mut:
tui &tui.Context = 0
data VaccineAvailability
is_loading bool
idx int = 1
}
struct VaccineAvailability {
mut:
date string
available_sessions []Sessions
state_id int = 17
district_id int = 296
}
struct SessionResponse {
sessions []Sessions
}
struct Sessions {
center_id int
name string
address string
state_name string
district_name string
block_name string
pincode int
from string
to string
lat int
long int
fee_type string
session_id string
date string
available_capacity int
available_capacity_dose1 int
available_capacity_dose2 int
fee string
allow_all_age bool
min_age_limit int
vaccine string
slots []string
}
fn event(e &tui.Event, x voidptr) {
mut app := &App(x)
if e.typ == .key_down && e.code == .escape {
exit(0)
}
if e.typ == .key_down && e.code == .enter {
app.idx = app.idx + 1
mut date_of_vaccine := time.now().add_days(app.idx).get_fmt_date_str(.hyphen,.ddmmyyyy)
app.data.date = date_of_vaccine
app.find_session(app.data.district_id, app.data.date)
}
}
fn frame(x voidptr) {
mut app := &App(x)
app.tui.clear()
//Draw Area
app.draw_header()
app.draw_vaccine_availability()
app.tui.reset()
app.tui.flush()
}
fn (mut app App) draw_header() {
app.tui.draw_text(3,2,"Vaccine Availability on ${app.data.date} | Total Centers : ${app.data.available_sessions.len}")
app.tui.horizontal_separator(3)
}
fn (mut app App) draw_vaccine_availability() {
available_sessions := app.data.available_sessions
start_x := 3
mut start_y := 5
if available_sessions.len == 0 {
app.tui.draw_text(app.tui.window_width/2 - 10,app.tui.window_height/2,"No Vaccine Available")
} else {
for session in available_sessions {
fee := match session.fee_type{
'Free' {'Free'}
'Paid' { session.fee }
else { 'N/A' }
}
app.tui.draw_text(start_x,start_y,"${session.address} | Vaccine: ${session.vaccine} | Total Available: ${session.available_capacity} | Fee: ${fee}")
start_y += 2
}
}
}
fn init(x voidptr) {
mut app := &App(x)
app.find_session(app.data.district_id, app.data.date)
}
fn main() {
mut app := &App{}
app.tui = tui.init(
user_data: app
event_fn: event
frame_fn: frame
hide_cursor: false,
init_fn: init
)
mut date_of_vaccine := time.now().add_days(app.idx).get_fmt_date_str(.hyphen,.ddmmyyyy)
if os.args.len ==2 {
date_of_vaccine = os.args[1]
}
println("Searching Vaccine Availability on $date_of_vaccine")
app.data.date = date_of_vaccine
app.tui.set_window_title("COWIN Vaccine Finder")
app.tui.run() ?
}
fn (mut app App) find_session(district_id int,date string) {
app.is_loading = true
fetch_config := http.FetchConfig{
header: http.new_header(
key : .accept_language,
value: 'en-US'
)
}
url := 'https://cdn-api.co-vin.in/api/v2/appointment/sessions/public/findByDistrict?district_id=$district_id&date=$date'
resp := http.fetch(url, fetch_config) or {
println('failed to fetch data from the server')
return
}
session_data := json.decode(SessionResponse, resp.text) or {
println('failed to decode session json')
return
}
app.data.available_sessions = session_data.sessions
.filter( it.available_capacity > 0 && it.min_age_limit<45)
app.is_loading = false
}
fn setup_termui() {
}
|
