86 lines
2.0 KiB
Go
86 lines
2.0 KiB
Go
package config
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import (
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"encoding/json"
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"errors"
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"os"
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"github.com/gizak/termui"
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)
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// Config is the definition of a Config struct
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type Config struct {
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SlackToken string `json:"slack_token"`
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Theme string `json:"theme"`
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SidebarWidth int `json:"sidebar_width"`
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MainWidth int `json:"-"`
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KeyMapping map[string]keyMapping `json:"keys"`
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}
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type keyMapping map[string]string
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// NewConfig loads the config file and returns a Config struct
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func NewConfig(filepath string) (*Config, error) {
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cfg := Config{
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Theme: "dark",
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SidebarWidth: 1,
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MainWidth: 11,
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KeyMapping: map[string]keyMapping{
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"normal": keyMapping{
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"i": "insert",
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"k": "channel-up",
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"j": "channel-down",
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"g": "channel-top",
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"G": "channel-bottom",
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"pg-up": "chat-up",
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"ctrl-b": "chat-up",
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"ctrl-u": "chat-up",
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"pg-down": "chat-down",
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"ctrl-f": "chat-down",
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"ctrl-d": "chat-down",
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"q": "quit",
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},
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"insert": keyMapping{
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"left": "cursor-left",
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"right": "cursor-right",
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"enter": "send",
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"esc": "normal",
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"backspace": "backspace",
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"del": "delete",
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},
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},
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}
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file, err := os.Open(filepath)
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if err != nil {
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return &cfg, err
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}
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if err := json.NewDecoder(file).Decode(&cfg); err != nil {
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return &cfg, err
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}
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if cfg.SlackToken == "" {
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return &cfg, errors.New("couldn't find 'slack_token' parameter")
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}
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if cfg.SidebarWidth < 1 || cfg.SidebarWidth > 11 {
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return &cfg, errors.New("please specify the 'sidebar_width' between 1 and 11")
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}
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cfg.MainWidth = 12 - cfg.SidebarWidth
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if cfg.Theme == "light" {
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termui.ColorMap = map[string]termui.Attribute{
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"fg": termui.ColorBlack,
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"bg": termui.ColorWhite,
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"border.fg": termui.ColorBlack,
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"label.fg": termui.ColorBlue,
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"par.fg": termui.ColorYellow,
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"par.label.bg": termui.ColorWhite,
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}
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}
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return &cfg, nil
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}
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